Science Past Year Paper SA-1(Set -9) - 2016, Class 10, CBSE Class 10 Notes | EduRev

Science Class 10

Class 10 : Science Past Year Paper SA-1(Set -9) - 2016, Class 10, CBSE Class 10 Notes | EduRev

 Page 1


 
 
 
 
424WE6T 
SUMMATIVE ASSESSMENT – I, 2016 – 17 
SCIENCE  
CLASS: X 
Maximum Marks: 90                    Time: 3 Hrs. 
 
General Instructions: 
1. The questions paper comprises of two Section A and B. You are to attempt both the 
sections. 
2. All questions are compulsory. 
3. All questions of Section A and all questions of Section B are to be attempted separately. 
4. Question numbers 1 to 3 in Section A are one marks questions. These are to be answered 
in one word or in one sentence. 
5. Question numbers 4 to 6 in Section A are two marks questions. These are to be answered 
in about 30 words each. 
6. Question numbers 7 to 18 in Section A are three marks questions. These are to be 
answered in about 50 words each. 
7. Question numbers 19 to 24 in Section A are five marks questions. These are to be 
answered in about 70 words each. 
8. Question numbers 25 to 33 in Section B are multiple choice questions based on practical 
skills. Each question is a one mark questions. You are to select one most appropriate 
response out of the four provided to you. 
9. Question numbers 34 to 36 in Section B are questions based on practical skills Each 
question is of two marks. 
 
SECTION A 
1. Define photosynthesis. 
 
2. State the type of combination used for connecting different electric appliances in 
domestic circuit. 
 
3. State two steps in the process of generation of electricity from a windmill. 
 
4. A milk man adds very small amount of baking soda in fresh milk. 
 (a) Why does he shift the pH of fresh milk from 6 to slight alkaline? 
 (b) Why does this milk take a long time to set as curd? 
 
5. Select a metal out of the following which reacts with hot water but not with cold water 
Iron, sodium, magnesium. 
 Write the chemical equation of the reaction and name the main product formed during 
the reaction. 
 
6. How is our brain double protected against injuries and shocks? 
 
7. (a) What are the bases which are soluble in water called? 
Page 2


 
 
 
 
424WE6T 
SUMMATIVE ASSESSMENT – I, 2016 – 17 
SCIENCE  
CLASS: X 
Maximum Marks: 90                    Time: 3 Hrs. 
 
General Instructions: 
1. The questions paper comprises of two Section A and B. You are to attempt both the 
sections. 
2. All questions are compulsory. 
3. All questions of Section A and all questions of Section B are to be attempted separately. 
4. Question numbers 1 to 3 in Section A are one marks questions. These are to be answered 
in one word or in one sentence. 
5. Question numbers 4 to 6 in Section A are two marks questions. These are to be answered 
in about 30 words each. 
6. Question numbers 7 to 18 in Section A are three marks questions. These are to be 
answered in about 50 words each. 
7. Question numbers 19 to 24 in Section A are five marks questions. These are to be 
answered in about 70 words each. 
8. Question numbers 25 to 33 in Section B are multiple choice questions based on practical 
skills. Each question is a one mark questions. You are to select one most appropriate 
response out of the four provided to you. 
9. Question numbers 34 to 36 in Section B are questions based on practical skills Each 
question is of two marks. 
 
SECTION A 
1. Define photosynthesis. 
 
2. State the type of combination used for connecting different electric appliances in 
domestic circuit. 
 
3. State two steps in the process of generation of electricity from a windmill. 
 
4. A milk man adds very small amount of baking soda in fresh milk. 
 (a) Why does he shift the pH of fresh milk from 6 to slight alkaline? 
 (b) Why does this milk take a long time to set as curd? 
 
5. Select a metal out of the following which reacts with hot water but not with cold water 
Iron, sodium, magnesium. 
 Write the chemical equation of the reaction and name the main product formed during 
the reaction. 
 
6. How is our brain double protected against injuries and shocks? 
 
7. (a) What are the bases which are soluble in water called? 
 
 
 
 
 (b) Write any four uses of bases. 
8. (a) Write the essential condition for the following reaction of take place: 
 
2
2AgBr 2Ag+Br ? c 
 Write one application of this reaction. 
 
 (b) Complete the following chemical equation of a chemical reaction. 
 
Heat
4 2 3
2 ... ... FeSO FeO --- ? + + 
 
 (c) What happens when water is added to quick lime. Write chemical equation. 
 
9. Answer the following reactions: 
 (a) Name two metals which melt when kept on Plan. 
(b) Name two metals which do not react with oxygen even on heating. What is the likely 
position of such metals in the reactivity series? 
 (c) What happens when steam is passed over hot iron. Write its chemical equation. 
 
10. State the chemical property in each case on which the following uses of baking soda are 
based: 
 (i) as an antacid 
 (ii) as a constituent of baking powder. 
 (iii) applied on a honey bee stung area 
 
11. Two types of plant movements are shown below: 
  
 (a) State the stimulus which is common for movement in both the cases. 
 (b) Mentions separately for both, whether the movement takes place away or at the point  
of contact where stimulus is received. 
 (c) State one reason for the movement in each case. 
 
12. Explain any three methods used by plants to get rid of excretory products. 
 
13. Draw a diagram of human respiratory system and label on it: 
 (i) Diaphragm 
 (ii) Larynx 
 
14. 400 Joules of heat is produced per second in a 16 c resistor. Find the potential difference 
across the resistor. 
 
Page 3


 
 
 
 
424WE6T 
SUMMATIVE ASSESSMENT – I, 2016 – 17 
SCIENCE  
CLASS: X 
Maximum Marks: 90                    Time: 3 Hrs. 
 
General Instructions: 
1. The questions paper comprises of two Section A and B. You are to attempt both the 
sections. 
2. All questions are compulsory. 
3. All questions of Section A and all questions of Section B are to be attempted separately. 
4. Question numbers 1 to 3 in Section A are one marks questions. These are to be answered 
in one word or in one sentence. 
5. Question numbers 4 to 6 in Section A are two marks questions. These are to be answered 
in about 30 words each. 
6. Question numbers 7 to 18 in Section A are three marks questions. These are to be 
answered in about 50 words each. 
7. Question numbers 19 to 24 in Section A are five marks questions. These are to be 
answered in about 70 words each. 
8. Question numbers 25 to 33 in Section B are multiple choice questions based on practical 
skills. Each question is a one mark questions. You are to select one most appropriate 
response out of the four provided to you. 
9. Question numbers 34 to 36 in Section B are questions based on practical skills Each 
question is of two marks. 
 
SECTION A 
1. Define photosynthesis. 
 
2. State the type of combination used for connecting different electric appliances in 
domestic circuit. 
 
3. State two steps in the process of generation of electricity from a windmill. 
 
4. A milk man adds very small amount of baking soda in fresh milk. 
 (a) Why does he shift the pH of fresh milk from 6 to slight alkaline? 
 (b) Why does this milk take a long time to set as curd? 
 
5. Select a metal out of the following which reacts with hot water but not with cold water 
Iron, sodium, magnesium. 
 Write the chemical equation of the reaction and name the main product formed during 
the reaction. 
 
6. How is our brain double protected against injuries and shocks? 
 
7. (a) What are the bases which are soluble in water called? 
 
 
 
 
 (b) Write any four uses of bases. 
8. (a) Write the essential condition for the following reaction of take place: 
 
2
2AgBr 2Ag+Br ? c 
 Write one application of this reaction. 
 
 (b) Complete the following chemical equation of a chemical reaction. 
 
Heat
4 2 3
2 ... ... FeSO FeO --- ? + + 
 
 (c) What happens when water is added to quick lime. Write chemical equation. 
 
9. Answer the following reactions: 
 (a) Name two metals which melt when kept on Plan. 
(b) Name two metals which do not react with oxygen even on heating. What is the likely 
position of such metals in the reactivity series? 
 (c) What happens when steam is passed over hot iron. Write its chemical equation. 
 
10. State the chemical property in each case on which the following uses of baking soda are 
based: 
 (i) as an antacid 
 (ii) as a constituent of baking powder. 
 (iii) applied on a honey bee stung area 
 
11. Two types of plant movements are shown below: 
  
 (a) State the stimulus which is common for movement in both the cases. 
 (b) Mentions separately for both, whether the movement takes place away or at the point  
of contact where stimulus is received. 
 (c) State one reason for the movement in each case. 
 
12. Explain any three methods used by plants to get rid of excretory products. 
 
13. Draw a diagram of human respiratory system and label on it: 
 (i) Diaphragm 
 (ii) Larynx 
 
14. 400 Joules of heat is produced per second in a 16 c resistor. Find the potential difference 
across the resistor. 
 
 
 
 
 
15. For the circular coil carrying current shown alongside, draw magnetic field lines. Decided 
which of its face behaves as north pole and which face as south pole. Give reason to justify 
your answer. 
  
 
16. State Ohm’s law. Draw a circuit diagram to verify this law indicating the positive and 
negative terminals of the battery and the meters. Also show the direction of current in the 
circuit. 
17. Burning of fossil fuels cause lots of a air pollution. Generally these fossil fuels are used in 
our vehicles. 
 (i) As an aware citizen, list two ways to reduce air pollution caused due to vehicles. 
 (ii) Write two harmful effect other than air pollution, that are caused due to burning of 
fossil fuels. 
 
18. Name two components of a solar cooker that are used to increase its heating efficiency. 
Also explain how they do so? 
 
19. (a) Define corrosion. 
 (b) What is corrosion. 
 (c) How will you recognise the corrosion of silver? 
 (d) Why corrosion of iron is a serious problem 
 (e) How can we prevent corrosion of iron? 
 
20. Comment on the following: 
 (i) An acid react with a substance ‘X’ produces a gas which burns with pop sound. What is 
the nature of ‘X’? 
 (ii) An acid when reacts with ‘Z’, produces CO2 gas. What can be Z? 
 (iii) CaO and SO2 are two oxides. Name the oxide which will react with a base. Give 
reason. 
 (iv) A sodium compound is used for removing permanent hardness of water. Name that 
compound. 
 (v) A substance on treatment with chlorine gas yields bleaching powder. Name the 
substance. 
 
21. (a) Define hormone. Write four characteristics of hormones in humans. 
 (b) Name the disorder caused by the following situations: 
  
Page 4


 
 
 
 
424WE6T 
SUMMATIVE ASSESSMENT – I, 2016 – 17 
SCIENCE  
CLASS: X 
Maximum Marks: 90                    Time: 3 Hrs. 
 
General Instructions: 
1. The questions paper comprises of two Section A and B. You are to attempt both the 
sections. 
2. All questions are compulsory. 
3. All questions of Section A and all questions of Section B are to be attempted separately. 
4. Question numbers 1 to 3 in Section A are one marks questions. These are to be answered 
in one word or in one sentence. 
5. Question numbers 4 to 6 in Section A are two marks questions. These are to be answered 
in about 30 words each. 
6. Question numbers 7 to 18 in Section A are three marks questions. These are to be 
answered in about 50 words each. 
7. Question numbers 19 to 24 in Section A are five marks questions. These are to be 
answered in about 70 words each. 
8. Question numbers 25 to 33 in Section B are multiple choice questions based on practical 
skills. Each question is a one mark questions. You are to select one most appropriate 
response out of the four provided to you. 
9. Question numbers 34 to 36 in Section B are questions based on practical skills Each 
question is of two marks. 
 
SECTION A 
1. Define photosynthesis. 
 
2. State the type of combination used for connecting different electric appliances in 
domestic circuit. 
 
3. State two steps in the process of generation of electricity from a windmill. 
 
4. A milk man adds very small amount of baking soda in fresh milk. 
 (a) Why does he shift the pH of fresh milk from 6 to slight alkaline? 
 (b) Why does this milk take a long time to set as curd? 
 
5. Select a metal out of the following which reacts with hot water but not with cold water 
Iron, sodium, magnesium. 
 Write the chemical equation of the reaction and name the main product formed during 
the reaction. 
 
6. How is our brain double protected against injuries and shocks? 
 
7. (a) What are the bases which are soluble in water called? 
 
 
 
 
 (b) Write any four uses of bases. 
8. (a) Write the essential condition for the following reaction of take place: 
 
2
2AgBr 2Ag+Br ? c 
 Write one application of this reaction. 
 
 (b) Complete the following chemical equation of a chemical reaction. 
 
Heat
4 2 3
2 ... ... FeSO FeO --- ? + + 
 
 (c) What happens when water is added to quick lime. Write chemical equation. 
 
9. Answer the following reactions: 
 (a) Name two metals which melt when kept on Plan. 
(b) Name two metals which do not react with oxygen even on heating. What is the likely 
position of such metals in the reactivity series? 
 (c) What happens when steam is passed over hot iron. Write its chemical equation. 
 
10. State the chemical property in each case on which the following uses of baking soda are 
based: 
 (i) as an antacid 
 (ii) as a constituent of baking powder. 
 (iii) applied on a honey bee stung area 
 
11. Two types of plant movements are shown below: 
  
 (a) State the stimulus which is common for movement in both the cases. 
 (b) Mentions separately for both, whether the movement takes place away or at the point  
of contact where stimulus is received. 
 (c) State one reason for the movement in each case. 
 
12. Explain any three methods used by plants to get rid of excretory products. 
 
13. Draw a diagram of human respiratory system and label on it: 
 (i) Diaphragm 
 (ii) Larynx 
 
14. 400 Joules of heat is produced per second in a 16 c resistor. Find the potential difference 
across the resistor. 
 
 
 
 
 
15. For the circular coil carrying current shown alongside, draw magnetic field lines. Decided 
which of its face behaves as north pole and which face as south pole. Give reason to justify 
your answer. 
  
 
16. State Ohm’s law. Draw a circuit diagram to verify this law indicating the positive and 
negative terminals of the battery and the meters. Also show the direction of current in the 
circuit. 
17. Burning of fossil fuels cause lots of a air pollution. Generally these fossil fuels are used in 
our vehicles. 
 (i) As an aware citizen, list two ways to reduce air pollution caused due to vehicles. 
 (ii) Write two harmful effect other than air pollution, that are caused due to burning of 
fossil fuels. 
 
18. Name two components of a solar cooker that are used to increase its heating efficiency. 
Also explain how they do so? 
 
19. (a) Define corrosion. 
 (b) What is corrosion. 
 (c) How will you recognise the corrosion of silver? 
 (d) Why corrosion of iron is a serious problem 
 (e) How can we prevent corrosion of iron? 
 
20. Comment on the following: 
 (i) An acid react with a substance ‘X’ produces a gas which burns with pop sound. What is 
the nature of ‘X’? 
 (ii) An acid when reacts with ‘Z’, produces CO2 gas. What can be Z? 
 (iii) CaO and SO2 are two oxides. Name the oxide which will react with a base. Give 
reason. 
 (iv) A sodium compound is used for removing permanent hardness of water. Name that 
compound. 
 (v) A substance on treatment with chlorine gas yields bleaching powder. Name the 
substance. 
 
21. (a) Define hormone. Write four characteristics of hormones in humans. 
 (b) Name the disorder caused by the following situations: 
  
 
 
 
 
(i) Under secretion of growth hormone 
 (ii) Over secretin of growth hormone 
 (iii) Under secretion of insulin 
 (iv) Deficiency of iodine. 
 
22. Two similar resistances are connected (i) in series and (ii) in parallel, in two different 
circuit, one by one. If same current is passed through both the combinations in which 
case more heat will be produced? Give suitable reason for your answer. 
 
23. (a) What is an electromagnet? What does it consist of? 
 (b) With the help of a diagram showing experimental arrangement describe an activity to 
show how an electromagnet can be made in a school laboratory. 
 (c) Compare the pattern of the field produced in case of a current carrying solenoid with 
the magnetic field of a bar magnet. 
 
24. Draw a labelled circuit diagram showing three resistors R1, R2 and R3 connected in a 
parallel arrangement and this arrangement connected in series with a battery (E), a 
rheostat (Rh), a plug key (K) and an ammeter (A). Use this circuit and show with the help 
of a voltmeter that the same potential difference exists across each resistor of the parallel 
arrangement. List two precautions you would observe while performing the experiment. 
 
SECTION B 
25. While performing an experiment to determine the pH of the sample solutions given to a 
student. He /She adopted the following steps of procedure to get the correct result: 
 (i) cut small peace of pH paper and placed them on glazed tiles. 
 (ii) Mark the test tubes containing sample solutions as A, B, C and D. 
 (iii) Observe the colour produced and match it with the coloured chart. 
 (iv) Put one drop of each sample on the pH paper with the help of dropper. 
 
 The correct sequence of the steps of the procedure would be: 
 (a) (ii), (i), (iii), (iv) 
 (b) (i), (ii), (iii), (iv) 
 (c) (ii), (i), (iv), (iii) 
 (d) (iv), (iii), (ii), (i) 
 
26. Given below are diagrams of three test tubes containing dil. HCI, dil. Ethanoic acid and 
NaOH solution. 
  
Page 5


 
 
 
 
424WE6T 
SUMMATIVE ASSESSMENT – I, 2016 – 17 
SCIENCE  
CLASS: X 
Maximum Marks: 90                    Time: 3 Hrs. 
 
General Instructions: 
1. The questions paper comprises of two Section A and B. You are to attempt both the 
sections. 
2. All questions are compulsory. 
3. All questions of Section A and all questions of Section B are to be attempted separately. 
4. Question numbers 1 to 3 in Section A are one marks questions. These are to be answered 
in one word or in one sentence. 
5. Question numbers 4 to 6 in Section A are two marks questions. These are to be answered 
in about 30 words each. 
6. Question numbers 7 to 18 in Section A are three marks questions. These are to be 
answered in about 50 words each. 
7. Question numbers 19 to 24 in Section A are five marks questions. These are to be 
answered in about 70 words each. 
8. Question numbers 25 to 33 in Section B are multiple choice questions based on practical 
skills. Each question is a one mark questions. You are to select one most appropriate 
response out of the four provided to you. 
9. Question numbers 34 to 36 in Section B are questions based on practical skills Each 
question is of two marks. 
 
SECTION A 
1. Define photosynthesis. 
 
2. State the type of combination used for connecting different electric appliances in 
domestic circuit. 
 
3. State two steps in the process of generation of electricity from a windmill. 
 
4. A milk man adds very small amount of baking soda in fresh milk. 
 (a) Why does he shift the pH of fresh milk from 6 to slight alkaline? 
 (b) Why does this milk take a long time to set as curd? 
 
5. Select a metal out of the following which reacts with hot water but not with cold water 
Iron, sodium, magnesium. 
 Write the chemical equation of the reaction and name the main product formed during 
the reaction. 
 
6. How is our brain double protected against injuries and shocks? 
 
7. (a) What are the bases which are soluble in water called? 
 
 
 
 
 (b) Write any four uses of bases. 
8. (a) Write the essential condition for the following reaction of take place: 
 
2
2AgBr 2Ag+Br ? c 
 Write one application of this reaction. 
 
 (b) Complete the following chemical equation of a chemical reaction. 
 
Heat
4 2 3
2 ... ... FeSO FeO --- ? + + 
 
 (c) What happens when water is added to quick lime. Write chemical equation. 
 
9. Answer the following reactions: 
 (a) Name two metals which melt when kept on Plan. 
(b) Name two metals which do not react with oxygen even on heating. What is the likely 
position of such metals in the reactivity series? 
 (c) What happens when steam is passed over hot iron. Write its chemical equation. 
 
10. State the chemical property in each case on which the following uses of baking soda are 
based: 
 (i) as an antacid 
 (ii) as a constituent of baking powder. 
 (iii) applied on a honey bee stung area 
 
11. Two types of plant movements are shown below: 
  
 (a) State the stimulus which is common for movement in both the cases. 
 (b) Mentions separately for both, whether the movement takes place away or at the point  
of contact where stimulus is received. 
 (c) State one reason for the movement in each case. 
 
12. Explain any three methods used by plants to get rid of excretory products. 
 
13. Draw a diagram of human respiratory system and label on it: 
 (i) Diaphragm 
 (ii) Larynx 
 
14. 400 Joules of heat is produced per second in a 16 c resistor. Find the potential difference 
across the resistor. 
 
 
 
 
 
15. For the circular coil carrying current shown alongside, draw magnetic field lines. Decided 
which of its face behaves as north pole and which face as south pole. Give reason to justify 
your answer. 
  
 
16. State Ohm’s law. Draw a circuit diagram to verify this law indicating the positive and 
negative terminals of the battery and the meters. Also show the direction of current in the 
circuit. 
17. Burning of fossil fuels cause lots of a air pollution. Generally these fossil fuels are used in 
our vehicles. 
 (i) As an aware citizen, list two ways to reduce air pollution caused due to vehicles. 
 (ii) Write two harmful effect other than air pollution, that are caused due to burning of 
fossil fuels. 
 
18. Name two components of a solar cooker that are used to increase its heating efficiency. 
Also explain how they do so? 
 
19. (a) Define corrosion. 
 (b) What is corrosion. 
 (c) How will you recognise the corrosion of silver? 
 (d) Why corrosion of iron is a serious problem 
 (e) How can we prevent corrosion of iron? 
 
20. Comment on the following: 
 (i) An acid react with a substance ‘X’ produces a gas which burns with pop sound. What is 
the nature of ‘X’? 
 (ii) An acid when reacts with ‘Z’, produces CO2 gas. What can be Z? 
 (iii) CaO and SO2 are two oxides. Name the oxide which will react with a base. Give 
reason. 
 (iv) A sodium compound is used for removing permanent hardness of water. Name that 
compound. 
 (v) A substance on treatment with chlorine gas yields bleaching powder. Name the 
substance. 
 
21. (a) Define hormone. Write four characteristics of hormones in humans. 
 (b) Name the disorder caused by the following situations: 
  
 
 
 
 
(i) Under secretion of growth hormone 
 (ii) Over secretin of growth hormone 
 (iii) Under secretion of insulin 
 (iv) Deficiency of iodine. 
 
22. Two similar resistances are connected (i) in series and (ii) in parallel, in two different 
circuit, one by one. If same current is passed through both the combinations in which 
case more heat will be produced? Give suitable reason for your answer. 
 
23. (a) What is an electromagnet? What does it consist of? 
 (b) With the help of a diagram showing experimental arrangement describe an activity to 
show how an electromagnet can be made in a school laboratory. 
 (c) Compare the pattern of the field produced in case of a current carrying solenoid with 
the magnetic field of a bar magnet. 
 
24. Draw a labelled circuit diagram showing three resistors R1, R2 and R3 connected in a 
parallel arrangement and this arrangement connected in series with a battery (E), a 
rheostat (Rh), a plug key (K) and an ammeter (A). Use this circuit and show with the help 
of a voltmeter that the same potential difference exists across each resistor of the parallel 
arrangement. List two precautions you would observe while performing the experiment. 
 
SECTION B 
25. While performing an experiment to determine the pH of the sample solutions given to a 
student. He /She adopted the following steps of procedure to get the correct result: 
 (i) cut small peace of pH paper and placed them on glazed tiles. 
 (ii) Mark the test tubes containing sample solutions as A, B, C and D. 
 (iii) Observe the colour produced and match it with the coloured chart. 
 (iv) Put one drop of each sample on the pH paper with the help of dropper. 
 
 The correct sequence of the steps of the procedure would be: 
 (a) (ii), (i), (iii), (iv) 
 (b) (i), (ii), (iii), (iv) 
 (c) (ii), (i), (iv), (iii) 
 (d) (iv), (iii), (ii), (i) 
 
26. Given below are diagrams of three test tubes containing dil. HCI, dil. Ethanoic acid and 
NaOH solution. 
  
 
 
 
 
 Choose the correct statement: 
 (a) pH of I is greater than of II and III. 
 (b) pH of III greater than pH of I and II. 
 (c) pH of I, II, III is equal. 
 (d) pH of II is greater than pH of I and III. 
 
27. Four students A, B, C and D studied the reactions of zinc and sodium carbonate (Na2CO3) 
with dil HCI and dil NaOH solutions and presented their results as follows (The sign v 
represented evolutions of gas and × absence of any reactions) 
  
 The right set of observation is that of student: 
 (a) A 
 (b) B 
 (c) C 
 (d) D 
 
28. Which of these is least reactive metal? 
 (a) zinc 
 (b) iron 
 (c) copper 
 (d) aluminium 
 
29. The colour of copper sulphate solution is: 
 (a) Blue  
 (b) Red 
 (c) Black 
 (d) Green 
 
30. In the experiment on finding the equivalent resistance of two resistor, connected in 
series, the voltmeter is correctly connected only in circuit: 
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