1099+ Important Chemistry MCQ Questions Answers

Q:

_________ gets converted to phosgene, when exposed to sunlight.

A) Chloroform	B) Acetone
C) Benzene	D) Propylene

Answer & Explanation Answer: A) Chloroform

Explanation:

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Q:

Non metal found in liquid state?

A) Chlorine	B) Bromine
C) Fluorine	D) Iodine

Answer & Explanation Answer: B) Bromine

Explanation:

Bromine is the Non metal found in liquid state.

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Q:

The atoms of Germanium, Arsenic, Selenium and Bromine contain ...... shells.

A) 3	B) 7
C) 5	D) 4

Answer & Explanation Answer: D) 4

Explanation:

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Q:

The complexity and variety of organic molecules is due to

A) their interaction with water	B) their tremendously large sizes
C) the chemical versatility of carbon atoms	D) the variety of rare elements in organic molecules

Answer & Explanation Answer: C) the chemical versatility of carbon atoms

Explanation:

The complexity and variety of organic molecules is due to the chemical versatility of carbon atoms.

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Q:

Which of the following is a chemical formula of quicklime?

A) Ca2O	B) Ca2CO3
C) CaO2	D) CaO

Answer & Explanation Answer: D) CaO

Explanation:

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Q:

Which of the following is used as non stick coating for cooking utensils?

A) Perspex	B) Styrofoam
C) Polystyrene	D) Teflon

Answer & Explanation Answer: D) Teflon

Explanation:

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Q:

A change in which one or more new substances are formed is called _________.

A) Physical Change	B) Chemical Change
C) Rusting	D) Galvanisation

Answer & Explanation Answer: B) Chemical Change

Explanation:

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Q:

Which is the only non-metal placed at the left side of the Modern Periodic Table?

A) Hydrogen	B) Carbon
C) Neon	D) Helium

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