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 Chemistry Questions

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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:

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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Q:

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

A) BCl3 B) Ni(CO)4
C) CH3OH D) CClF3
 
Answer & Explanation Answer: D) CClF3

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Q:

Which among the following is false about viscosity?

A) Viscosity of gases is less than that of liquids B) Viscosity of gases increases with rise in temperature
C) Viscosity of liquid decreases with rise in temperature D) Viscosity of liquid decreases with increase in pressure
 
Answer & Explanation Answer: D) Viscosity of liquid decreases with increase in pressure

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Q:

The modern periodic table consists of 18 groups and 7 periods. What is the atomic number of the element placed in the 3rd group and the 4th period?

A) 23 B) 21
C) 19 D) 11
 
Answer & Explanation Answer: B) 21

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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:

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:

A) Mineral B) Tribe
C) Grass D) Town
 
Answer & Explanation Answer: C) Grass

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