Chemistry Questions

Q:

Curdling of milk is an example of

A) Inversion B) Denaturation
C) Hydrolysis D) Coagulation
 
Answer & Explanation Answer: D) Coagulation

Explanation:

Coagulation :: The action or process of a liquid, especially blood, changing to a solid or semi-solid state.

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Q:

What relationship exists between an enzyme and a catalyst?

Answer

An enzyme is a variety of catalyst and is the relation between tham. A catalyst is a chemical that increases the rate of a chemical reaction without itself being changed by the reaction.


 

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Q:

Stoichiometry is based on

A) Law of conservation of energy B) Law of conservation of mass
C) Newton's 1st law D) Kepler's law
 
Answer & Explanation Answer: B) Law of conservation of mass

Explanation:

Stoichiometry is a branch of chemistry deals with the calculations on reactants and products. It is based on the Law of conservation of mass where total mass of reactants is equal to total mass of products.

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Q:

Which of the following can be used as lamp oil?

A) Lipids B) Carbohydrates
C) Proteins D) Nucleic acids
 
Answer & Explanation Answer: A) Lipids

Explanation:
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Q:

Which of the following gases is present under pressure in soft drinks?

A) Nitrous oxide B) Oxygen
C) Nitrogen D) Carbon dioxide
 
Answer & Explanation Answer: D) Carbon dioxide

Explanation:

Carbon dioxide is present under pressure in soft drinks.

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Q:

Which gas is used in tube light?

A) Oxygen B) Hydrogen
C) Neon D) Nitric oxide
 
Answer & Explanation Answer: C) Neon

Explanation:
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Q:

Which is the most malleable metal?

A) Gold B) Silver
C) Both A & B D) Bronze
 
Answer & Explanation Answer: A) Gold

Explanation:

The most malleable metal is Gold.

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Q:

Which substance contains metallic bonds?

A) C6H12O6 B) Hg
C) H2O D) NaCl
 
Answer & Explanation Answer: B) Hg

Explanation:

Metallic bond is a bond between two metal atoms. Here in the given option Hg is the only metal with metallic bond.

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