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Case Based Questions Test: Metals & Non-metals - 1 - Class 10


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15 Questions MCQ Test Science Class 10 - Case Based Questions Test: Metals & Non-metals - 1

Case Based Questions Test: Metals & Non-metals - 1 for Class 10 2023 is part of Science Class 10 preparation. The Case Based Questions Test: Metals & Non-metals - 1 questions and answers have been prepared according to the Class 10 exam syllabus.The Case Based Questions Test: Metals & Non-metals - 1 MCQs are made for Class 10 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Case Based Questions Test: Metals & Non-metals - 1 below.
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Case Based Questions Test: Metals & Non-metals - 1 - Question 1

Study the given table and answer the questions:

A student took the samples of four metals A, B, C and D and added the following solutions one by one. The results obtained have been tabulated as follows:

Choose the most reactive metal:

Detailed Solution for Case Based Questions Test: Metals & Non-metals - 1 - Question 1

B is the most reactive metal as it displaces iron from its salt solution.

Case Based Questions Test: Metals & Non-metals - 1 - Question 2

Study the given table and answer the questions:

A student took the samples of four metals A, B, C and D and added the following solutions one by one. The results obtained have been tabulated as follows:

Which of the following will displace Cu from its solution of sulphate:

Detailed Solution for Case Based Questions Test: Metals & Non-metals - 1 - Question 2

Case Based Questions Test: Metals & Non-metals - 1 - Question 3

Study the given table and answer the questions:

A student took the samples of four metals A, B, C and D and added the following solutions one by one. The results obtained have been tabulated as follows:

On the basis of sequence of reactions, identify the most and least reactive elements.

A + BX → AX + B

C + AY → CY + A

Detailed Solution for Case Based Questions Test: Metals & Non-metals - 1 - Question 3
Most reactive: C; Least reactive: B
Case Based Questions Test: Metals & Non-metals - 1 - Question 4

When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.

Identify A and C?

Detailed Solution for Case Based Questions Test: Metals & Non-metals - 1 - Question 4
B = Fe2O3

C = Fe

D = Al2O3

Case Based Questions Test: Metals & Non-metals - 1 - Question 5

When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.

Identify B and D which are oxides of:

Detailed Solution for Case Based Questions Test: Metals & Non-metals - 1 - Question 5
B = oxide of iron D – oxide of Al
Case Based Questions Test: Metals & Non-metals - 1 - Question 6

When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with the evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.

The reaction in which heat is generated is called as:

Detailed Solution for Case Based Questions Test: Metals & Non-metals - 1 - Question 6
(I) A = AIB = Fe2O3C = FeD = Al2O3

(III) 2Al + 3O2 → 2Al2O3

When A reacts with air it will give aluminium oxide which is amphoteric in nature.

(IV) Al2O3 + 6HClaq → 2AlCl3 + 3H2OAl2O3 + 2NaOHaq → 2NaAlO2 + H2O

Case Based Questions Test: Metals & Non-metals - 1 - Question 7

Read the following passage and answer the questions.

Sohan went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was sad but after a futile argument, the man beat a hasty retreat.

Which of the following is used for dissolution of gold?

Detailed Solution for Case Based Questions Test: Metals & Non-metals - 1 - Question 7
Aqua Regia is a mixture of concentrated HNO3 and concentrated HCl. It is used for dissolution of gold.
Case Based Questions Test: Metals & Non-metals - 1 - Question 8

Read the following passage and answer the questions.

Sohan went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was sad but after a futile argument, the man beat a hasty retreat.

The composition of aqua-regia is

Detailed Solution for Case Based Questions Test: Metals & Non-metals - 1 - Question 8
Aqua regia is a mixture of nitric acid and hydrochloric acid, that is 3 part conc. HCl and one part conc. HNO3 (3: 1).
Case Based Questions Test: Metals & Non-metals - 1 - Question 9

Read the following passage and answer the questions.

Sohan went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was sad but after a futile argument, the man beat a hasty retreat.

Examples of Noble metals are:

Detailed Solution for Case Based Questions Test: Metals & Non-metals - 1 - Question 9
Noble metal (gold, platinum, palladium, silver, rhodium, and ruthenium) and transition-metal (iron, nickel, copper) NPs are used in different catalytic reactions.
Case Based Questions Test: Metals & Non-metals - 1 - Question 10

Read the following passage and answer the questions.

During extraction of metals, electrolytic refining is used to obtain pure metals. During the process, the impure metal is made the anode and a thin strip of pure metal is made the cathode. The solution of the metal salt is used as an electrolyte. On passing the current through the electrolyte, the pure metal from the anode dissolves from the electrolyte. An equivalent of pure metal from the electrolyte is deposited on the cathode.

The process of purification of the metal obtained after reduction, is called:

Detailed Solution for Case Based Questions Test: Metals & Non-metals - 1 - Question 10
Extractive metallurgy is the practice of removing valuable metals from an ore and refining the extracted raw metals into a purer form. Hydrometallurgy uses aqueous solutions to extract metals from ores (leaching). Pyrometallurgy involves high temperature processes where chemical reactions take place.
Case Based Questions Test: Metals & Non-metals - 1 - Question 11

Read the following passage and answer the questions.

During extraction of metals, electrolytic refining is used to obtain pure metals. During the process, the impure metal is made the anode and a thin strip of pure metal is made the cathode. The solution of the metal salt is used as an electrolyte. On passing the current through the electrolyte, the pure metal from the anode dissolves from the electrolyte. An equivalent of pure metal from the electrolyte is deposited on the cathode.

Which of the metals are refined by electrolytic refining?

I. Au

II. Cu

III. Na

IV. K

Detailed Solution for Case Based Questions Test: Metals & Non-metals - 1 - Question 11
Metals like Cu, Zn, Ag and Au are refined by electrolytic refining.
Case Based Questions Test: Metals & Non-metals - 1 - Question 12

Read the following passage and answer the questions.

During extraction of metals, electrolytic refining is used to obtain pure metals. During the process, the impure metal is made the anode and a thin strip of pure metal is made the cathode. The solution of the metal salt is used as an electrolyte. On passing the current through the electrolyte, the pure metal from the anode dissolves from the electrolyte. An equivalent of pure metal from the electrolyte is deposited on the cathode.

Anode is _______electrode while cathode is ---------electrode:
Choose the correct option.

Detailed Solution for Case Based Questions Test: Metals & Non-metals - 1 - Question 12

The anode is usually the Positive side Electrode. A cathode is a Negative side Electrode.

Case Based Questions Test: Metals & Non-metals - 1 - Question 13

Read the following passage and answer the questions.

When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.

Which of the following is amphoteric in nature:

Detailed Solution for Case Based Questions Test: Metals & Non-metals - 1 - Question 13
Many metals (such as zinc, tin, lead, aluminium, and beryllium) form amphoteric oxides or hydroxides. The dioxide of SnO2 reacts with the acid as well as the bases. So we can easily say that the SnO2 is an amphoteric oxide. Now the CaO is the ones basic in nature, while SiO2 and CO2 are acidic in nature.
Case Based Questions Test: Metals & Non-metals - 1 - Question 14

Read the following passage and answer the questions.

When a silvery grey powder of a solid (A) is mixed with a powder of solid (B) no reaction occurs. But if the mixture is ignited and lighted using magnesium ribbon a reaction occurs with evolution of a large amount of heat forming product (C) which settles down as liquid metal and the solid product (D) formed floats on the liquid (C). (C) in solid form reacts with moisture to form rust. The amount of heat generated during the reaction is so high that the reaction is used in welding of electric conductors, joints in railway tracks. Based on this information, answer the questions.

Amphoteric oxides are:

Detailed Solution for Case Based Questions Test: Metals & Non-metals - 1 - Question 14
Amphoteric oxides are oxides, which behave as both basic and acidic oxides. Amphoteric Oxides contain the features of acidic and basic oxides as well that neutralize both acids and bases. This is the simple amphoteric oxides meaning.
Case Based Questions Test: Metals & Non-metals - 1 - Question 15

Read the following passage and answer the questions.

During extraction of metals, electrolytic refining is used to obtain pure metals. During the process, the impure metal is made the anode and a thin strip of pure metal is made the cathode. The solution of the metal salt is used as an electrolyte. On passing the current through the electrolyte, the pure metal from the anode dissolves from the electrolyte. An equivalent of pure metal from the electrolyte is deposited on the cathode.

During electrolytic refining of zinc, it gets

Detailed Solution for Case Based Questions Test: Metals & Non-metals - 1 - Question 15
Ions of zinc are positively charged, thus while electrolytic refining of zinc, zinc is deposited at cathode (negatively charged pole).
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