Class 10
Haematite is an ore of- a)Aluminium
- b)Copper
- c)Iron
- d)Tin
Correct answer is option 'C'. Can you explain this answer?
Haematite is an ore of
a)
Aluminium
b)
Copper
c)
Iron
d)
Tin
Neha R. P answered • 2 hours agoHematite, also spelled haematite, heavy and relatively hard oxide mineral, ferric oxide (Fe2O3), that constitutes the most important iron ore because of its high iron content (70 percent) and it's abundance.
Hence correct option is C.
Hence correct option is C.
Guys periodic table remember karne ka koi tips batao na .?
Akhi Sagi answered • 3 hours agoASAP science ka YouTube me ek periodic table ka song hai usse mast yaad hojaye ga . Meh tho ese he yaad ke . maybe it will for you aswell.
Other names for myopia are- a)hyperopia and hypermetropia
- b)long-sightedness and hyperopia
- c)near-sightedness and presbyopia
- d)near-sightedness and short-sightedness
Correct answer is option 'D'. Can you explain this answer?
Other names for myopia are
a)
hyperopia and hypermetropia
b)
long-sightedness and hyperopia
c)
near-sightedness and presbyopia
d)
near-sightedness and short-sightedness
Saxena Aastha answered • 13 hours agoNear-sightedness, short-sightedness is another name of myopia
What is 'Brainfreeze?'?
Anita Jagtap answered • 19 hours agoA sudden shooting pain in head caused by ingesting very cold food such as ice cream or drink.
a brain freeze regards to eating ice cream or drinking milkshakes or frozen beverages too fast, is a sudden intense pain in the head.
brain freeze is also called ice cream headache -a pain in the tamples and forehead brought on by quickly consuming very cold food and drinks.
a brain freeze regards to eating ice cream or drinking milkshakes or frozen beverages too fast, is a sudden intense pain in the head.
brain freeze is also called ice cream headache -a pain in the tamples and forehead brought on by quickly consuming very cold food and drinks.
The shape of a glass (tumbler) (see Fig.) is usually in the form of
- a)a cone
- b)frustum of a cone
- c)a cylinder
- d)a sphere
Correct answer is option 'B'. Can you explain this answer?
The shape of a glass (tumbler) (see Fig.) is usually in the form of
a)
a cone
b)
frustum of a cone
c)
a cylinder
d)
a sphere
Saxena Aastha answered • yesterdayFrustum of cone is the part of cone when it is cut by a plane into two parts. The upper part of cone remains same in shape but the bottom part makes a frustum.
so correct option is B
Kamlesh Kaur asked • 13 hours agoCorrect balanced equation from the following reactions is:- a)K2Cr2O7 + 8H2SO4 → K2SO4 + Cr2(SO4)3 + 3O2 + 8H2O
- b)K2Cr2O7 + 8H2SO4 → 2K2SO4 + Cr2(SO4)3 + 3O2 + 8H2O
- c)2K2Cr2O7 + 8H2SO4 → 2K2SO4 + 2Cr2(SO4)3 + 3O2 + 8H2O
- d)2K2Cr2O7 + 4H2SO4 → 2K2SO4 + Cr2(SO4)3 + 3O2 + 8H2O
Correct answer is option 'C'. Can you explain this answer?
Correct balanced equation from the following reactions is:
a)
K2Cr2O7 + 8H2SO4 → K2SO4 + Cr2(SO4)3 + 3O2 + 8H2O
b)
K2Cr2O7 + 8H2SO4 → 2K2SO4 + Cr2(SO4)3 + 3O2 + 8H2O
c)
2K2Cr2O7 + 8H2SO4 → 2K2SO4 + 2Cr2(SO4)3 + 3O2 + 8H2O
d)
2K2Cr2O7 + 4H2SO4 → 2K2SO4 + Cr2(SO4)3 + 3O2 + 8H2O
Elements in a group have similar chemical properties. Give reason?
Adidev Nair answered • yesterdayElements in the same group have similar properties because they have the same number of valence electrons in their outermost shell.
Elements in the same period have different properties because the number of valence electrons in their outermost shells differs.
Chhoturam asked • 20 hours agoWhich of the following statements about the given reaction are correct?3Fe(s) + 4H2O(g) → Fe3O4(s) + 4H2(g)(i) Iron metal is getting oxidised(ii) Water is getting reduced(iii) Water is acting as reducing agent(iv) Water is acting as oxidising agent- a)(i), (ii) and (iii)
- b)(iii) and (iv)
- c)(i), (ii) and (iv)
- d)(ii) and (iv)
Correct answer is option 'C'. Can you explain this answer?
Which of the following statements about the given reaction are correct?
3Fe(s) + 4H2O(g) → Fe3O4(s) + 4H2(g)
(i) Iron metal is getting oxidised
(ii) Water is getting reduced
(iii) Water is acting as reducing agent
(iv) Water is acting as oxidising agent
a)
(i), (ii) and (iii)
b)
(iii) and (iv)
c)
(i), (ii) and (iv)
d)
(ii) and (iv)
Assertion: Air travel is the fastest mode of travels.
Reasons: It is not within the reach of the common people.- a)Both A and R are true and R is the correct explanation of A
- b)Both A and R are true but R is not the correct explanation of A
- c)A is correct but R is wrong
- d)A is wrong but R is correct
Correct answer is option 'B'. Can you explain this answer?
Assertion: Air travel is the fastest mode of travels.
Reasons: It is not within the reach of the common people.
Reasons: It is not within the reach of the common people.
a)
Both A and R are true and R is the correct explanation of A
b)
Both A and R are true but R is not the correct explanation of A
c)
A is correct but R is wrong
d)
A is wrong but R is correct
Anita Jagtap answered • yesterdayB. is correct answer
Mercury is transported in the container's made up of- a)Al
- b)Fe
- c)Ag
- d)Pb
Correct answer is option 'B'. Can you explain this answer?
Mercury is transported in the container's made up of
a)
Al
b)
Fe
c)
Ag
d)
Pb
Manish Kumar Sah Sah answered • yesterdayMercury is a liquid which is transported in iron container , as iron does not amalgamate with mercury.
Which of the following is not a function of transpiration?- a)Excretion of minerals
- b)Cooling of leaves
- c)Uptake of water
- d)Uptake of minerals
Correct answer is option 'A'. Can you explain this answer?
Which of the following is not a function of transpiration?
a)
Excretion of minerals
b)
Cooling of leaves
c)
Uptake of water
d)
Uptake of minerals
Saxena Aastha answered • yesterdayTranspiration is the process of water loss from leaves in the form of vapour. It is necessary for transporting minerals from the soil to the plant parts, cooling the plant, moving sugars and maintaining turgor pressure. Excretion of minerals does not occur through transpiration. Thus, option A is correct.
What do you mean by exothermic and endothermic reaction ? give with examples.?
Ram Mohith answered • yesterday- Exothermic reactions are the reactions in which heat is released during the process. In these type of reactions reactants are at higher energy as compared to products. Due to this products are more stable than the reactants.
- Endothermic reactions are the reactions in which heat is absorbed during the process. In these type of reactions reactants are at lower energy as compared to products. Due to this products are less stable than the reactants.
Where and how various components of food are digested in our body?
varun answered • 2 days agoBaklol
Which of the following is a combination reaction?
a)CaCO3→ CaO + CO2more
Saxena Aastha answered • 2 days agoCombination rxn mean when two element combine to form one compound so option B is correct answer
Which of the following alloy has copper as its constituent?- a)Brass
- b)Alnico
- c)Steel
- d)Solder
Correct answer is option 'A'. Can you explain this answer?
Which of the following alloy has copper as its constituent?
a)
Brass
b)
Alnico
c)
Steel
d)
Solder
Saxena Aastha answered • 2 days agoBrass is an alloy of copper and zinc,
soo correct option is A
Name one plant hormone which is responsible for growth
Neha R. P answered • 3 days agoAuxin, commonly abbreviated as IAA, gibberellins and cytokininins all promote plant growth. Abcisic acid and ethylene inhibit plant growth....
Smallest bone of human body. And where it is found.
Neha R. P answered • 3 days ago—)The smallest bone in human body is stapes and it is found in the middle ear.
In which two ways, the Public Interest Groups achieve their aims?
(i) They organise meetings to win Public Support.
(ii) They raise slogans against the Government and disrupt the public.
(iii) They try to influence the media by drawing their attention to their cause.
(iv) They set up the public property on fire.- a)(i) and (ii)
- b)(i) and (iii)
- c)(i) and (iv)
- d)(ii) and (iii)
Correct answer is option 'B'. Can you explain this answer?
In which two ways, the Public Interest Groups achieve their aims?
(i) They organise meetings to win Public Support.
(ii) They raise slogans against the Government and disrupt the public.
(iii) They try to influence the media by drawing their attention to their cause.
(iv) They set up the public property on fire.
(i) They organise meetings to win Public Support.
(ii) They raise slogans against the Government and disrupt the public.
(iii) They try to influence the media by drawing their attention to their cause.
(iv) They set up the public property on fire.
a)
(i) and (ii)
b)
(i) and (iii)
c)
(i) and (iv)
d)
(ii) and (iii)
Swati Malkani answered • 3 days agoOption B is correct
निर्देश : निम्नलिखित प्रत्येक वाक्य के लिए उसके नीचे दिये गये विकल्पों में से उसके प्रकार को चिन्हित कीजिए।न उसने हाँ भरी न उसके भाई ने हाँ भरी- a)मिश्र वाक्य
- b)संयुक्त वाक्य
- c)सरल वाक्य
- d)इनमें से कोई नहीं
Correct answer is option 'B'. Can you explain this answer?
निर्देश : निम्नलिखित प्रत्येक वाक्य के लिए उसके नीचे दिये गये विकल्पों में से उसके प्रकार को चिन्हित कीजिए।
न उसने हाँ भरी न उसके भाई ने हाँ भरी
a)
मिश्र वाक्य
b)
संयुक्त वाक्य
c)
सरल वाक्य
d)
इनमें से कोई नहीं
Swati Malkani answered • 3 days agoOption B..
Consider the following two statements Ion power-sharing, and select the answer using the codes given below:
(A) Power-sharing is good for democracy.
(B) It helps to reduce the possibility of conflict between social groups.Which of these statements are true and which are false?- a)A is true but B is false
- b)Both A and. B is true
- c)Both A and B are false
- d)A is false but B is true
Correct answer is option 'B'. Can you explain this answer?
Consider the following two statements Ion power-sharing, and select the answer using the codes given below:
(A) Power-sharing is good for democracy.
(B) It helps to reduce the possibility of conflict between social groups.
(A) Power-sharing is good for democracy.
(B) It helps to reduce the possibility of conflict between social groups.
Which of these statements are true and which are false?
a)
A is true but B is false
b)
Both A and. B is true
c)
Both A and B are false
d)
A is false but B is true
Swati Malkani answered • 3 days agoOption B is correct
How can trophic level be defined
😎🧚🏻♂️Vedashree V 🧚🏻♂️😎 answered • 3 days agoTropic levels can be deduced by the energy sources used by the organisms.
In which form carbohydrate is stored in a human body?
😎🧚🏻♂️Vedashree V 🧚🏻♂️😎 answered • 4 days agoGlycerine
Mansi Behl asked • yesterdayAssertion: In the 18th century, European merchants found it difficult to expand production within towns.
Reason: Town had absolute technology.- a)Both A and R are true and R is the correct explanation of A
- b)Both A and R are true but R is not the correct explanation of A
- c)A is correct but R is wrong
- d)A is wrong but R is correct
Correct answer is option 'C'. Can you explain this answer?
Assertion: In the 18th century, European merchants found it difficult to expand production within towns.
Reason: Town had absolute technology.
Reason: Town had absolute technology.
a)
Both A and R are true and R is the correct explanation of A
b)
Both A and R are true but R is not the correct explanation of A
c)
A is correct but R is wrong
d)
A is wrong but R is correct
Which hormone help in plant growth?
😎🧚🏻♂️Vedashree V 🧚🏻♂️😎 answered • 4 days agoThere are five major types of plant hormones: auxins, cytokinins, gibberellins, ethylene and abscisic acid. Each hormone has a distinct job and for oilseed, pulse and cereal crops, auxins and cytokinins can greatly improve plant vigor, promote growth of roots and shoots and reduce stress.
which plant hormone plays a role in apical dominance in plants?
😎🧚🏻♂️Vedashree V 🧚🏻♂️😎 answered • 4 days agoAuxins promote stem elongation, inhibit growth of lateral buds (maintains apical dominance). They are produced in the stem, buds, and root tips. Example: Indole Acetic Acid (IA). Auxin is a plant hormone produced in the stem tip that promotes cell elongation.
What important role does adrenaline hormone plays in our body and why it is called as stress hormone ?
😎🧚🏻♂️Vedashree V 🧚🏻♂️😎 answered • 4 days agoAdrenaline triggers the body's fight-or-flight response. This reaction causes air passages to dilate to provide the muscles with the oxygen they need to either fight danger or flee. Adrenaline also triggers the blood vessels to contract to re-direct blood toward major muscle groups, including the heart and lungs.
How does our body respond when adrenaline is secreted into the blood?
😎🧚🏻♂️Vedashree V 🧚🏻♂️😎 answered • 4 days agoOur body responds when adrenaline is secreted into the blood
When it reaches the heart, it beats faster to provide more oxygen to our muscles. ... It also raises the blood pressure, and allows more glucose to enter into the blood. All these responses together enable our body to deal with the emergency situations.
When it reaches the heart, it beats faster to provide more oxygen to our muscles. ... It also raises the blood pressure, and allows more glucose to enter into the blood. All these responses together enable our body to deal with the emergency situations.
Nancy Tiwari asked • yesterdayH2SO4 + 2NaOH → Na2SO4 + 2H2O Above equation is a(i) neutralization reaction(ii) double displacement reaction(iii) decomposition reaction(iv) addition reaction- a)(iii) and (iv)
- b)(i) and (ii)
- c)(i) and (iii)
- d)(ii) and (iv)
Correct answer is option 'B'. Can you explain this answer?
H2SO4 + 2NaOH → Na2SO4 + 2H2O Above equation is a
(i) neutralization reaction
(ii) double displacement reaction
(iii) decomposition reaction
(iv) addition reaction
a)
(iii) and (iv)
b)
(i) and (ii)
c)
(i) and (iii)
d)
(ii) and (iv)
How does our body respond when adrenaline is secreted into blood ?
😎🧚🏻♂️Vedashree V 🧚🏻♂️😎 answered • 4 days agoOur body responds when adrenaline is secreted into the blood
When it reaches the heart, it beats faster to provide more oxygen to our muscles. ... It also raises the blood pressure, and allows more glucose to enter into the blood. All these responses together enable our body to deal with the emergency situations.
When it reaches the heart, it beats faster to provide more oxygen to our muscles. ... It also raises the blood pressure, and allows more glucose to enter into the blood. All these responses together enable our body to deal with the emergency situations.
When Adrenaline secreted in our body?
😎🧚🏻♂️Vedashree V 🧚🏻♂️😎 answered • 4 days agoEpinephrine, more commonly known as adrenaline, is a hormone secreted by the medulla of the adrenal glands. Strong emotions such as fear or anger cause epinephrine to be released into the bloodstream, which causes an increase in heart rate, muscle strength, blood pressure, and sugar metabolism
Which gland in our body digested food as well as secret hormone?
😎🧚🏻♂️Vedashree V 🧚🏻♂️😎 answered • 4 days agoPancreatic Glands
Name one gland in human body which secretes digestive enzyme as well as hormone?
😎🧚🏻♂️Vedashree V 🧚🏻♂️😎 answered • 4 days agoPancreas_
Name the human gland which is called the 'Clock of the body'?
😎🧚🏻♂️Vedashree V 🧚🏻♂️😎 answered • 4 days agoPineal Glands
Which bone is called the soft bone of body?
😎🧚🏻♂️Vedashree V 🧚🏻♂️😎 answered • 4 days ago_Cartilage
What is the name of smallest bone in our body?
😎🧚🏻♂️Vedashree V 🧚🏻♂️😎 answered • 4 days ago_stapes_
what is double circulation?
😎🧚🏻♂️Vedashree V 🧚🏻♂️😎 answered • 4 days agoThe human circulatory system is a double circulatory system. It has two separate circuits and blood passes through the heart twice: the pulmonary circuit is between the heart and lungs. the systemic circuit is between the heart and the other organs.
What is double circulation explain?
😎🧚🏻♂️Vedashree V 🧚🏻♂️😎 answered • 4 days agoThe human circulatory system is a double circulatory system. It has two separate circuits and blood passes through the heart twice: the pulmonary circuit is between the heart and lungs. the systemic circuit is between the heart and the other organs.
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