Chemistry Questions

Q:

Which of the following is the best fire-extinguisher?

A) Water B) Oxygen
C) Carbon-dioxide D) Soil
 
Answer & Explanation Answer: C) Carbon-dioxide

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Q:

The Chemical formula of Ammonium dichromate is _____.

A) (NHF4)2Cr2O7 B) (NH4)CrO3
C) (NH4)Cr2O3 D) (NH4)2Cr2O3
 
Answer & Explanation Answer: A) (NHF4)2Cr2O7

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Q:

Release of which among the following is the primary reason for depletion of the ozone layer?

A) Nitrous oxide B) Hydrogen dioxide
C) Chlorofluro carbon D) Carbon monoxide
 
Answer & Explanation Answer: C) Chlorofluro carbon

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0 1416
Q:

Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?

A) Ar B) HN3
C) CO2 D) C4H6
 
Answer & Explanation Answer: C) CO2

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0 1415
Q:

______________ is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi.

A) B) Glycogen
C) Pectin D) Chitin
 
Answer & Explanation Answer: B) Glycogen

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Q:

What is the process of melting also called?

A) Fusion B) Galvanisation
C) Crystallisation D) Evaporation
 
Answer & Explanation Answer: A) Fusion

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Q:

Process of loosing electrons is known as _____.

A) oxidation B) reduction
C) radiation D) both oxidation and reduction
 
Answer & Explanation Answer: A) oxidation

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Q:

Benzene is ______ in ethyl alcohol.

A) soluble B) solute
C) insoluble D) insolate
 
Answer & Explanation Answer: C) insoluble

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