Chemistry Questions

Q:

Through which conversion is energy released?

A) CO2 and H2O to C6H12O6 and O2 B) NADP+ to NADPH
C) ADP to ATP D) ATP to ADP
 
Answer & Explanation Answer: D) ATP to ADP

Explanation:
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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:

Alcohol is a stimulant. true or false

A) TRUE B) FALSE
Answer & Explanation Answer: B) FALSE

Explanation:

Alcohol is a drug.

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Q:

A feature of catabolic reactions is that they

A) occur only in mitochondria B) occur only during loss of body weight
C) involve release of energy D) involve consumption of energy
 
Answer & Explanation Answer: C) involve release of energy

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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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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:

What is the general formula for a straight-chain alkane?

A) C2nH2n+3. B) CnH2n+2
C) CnH2n D) CnH3n+2.
 
Answer & Explanation Answer: B) CnH2n+2

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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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