Chemistry Questions

Q:

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

A) N2O B) AsH3
C) N2 D) C5H12
 
Answer & Explanation Answer: A) N2O

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Q:

The Chemical formula of Aluminium Chloride is _____.

A) AlCl B) AlCl2
C) AlCl3 D) Al2Cl3
 
Answer & Explanation Answer: C) AlCl3

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Q:

What is the chemical formula for Sodium Chloride (Salt)?

A) NaCl2 B) NaCl
C) Na2Cl D) Na2C
 
Answer & Explanation Answer: B) NaCl

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Q:

Which of the following is applied on the top of the matchsticks?

A) Red phosphorus B) White phosphorus
C) Potassium sulphate D) No option is correct
 
Answer & Explanation Answer: A) Red phosphorus

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Q:

Which metal is liquid at room temperature?

A) Bromine B) Chlorine
C) Mercury D) Cesium
 
Answer & Explanation Answer: C) Mercury

Explanation:

Mercury is the only metal that remains in liquid at room temperature.

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Q:

Which of the following is an example of thermosetting plastic?

A) Bakelite B) PVC
C) Polyethylene D) No option is correct.
 
Answer & Explanation Answer: A) Bakelite

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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:

Which of the following is used as anaesthetics?

A) N2 B) N2O
C) CH4 D) CO2
 
Answer & Explanation Answer: B) N2O

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