1099+ Important Chemistry MCQ Questions Answers

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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Q:

Which one of the following is an ohmic conductor?

A) Germanium	B) Silicon
C) Carbon	D) Silver

Answer & Explanation Answer: D) Silver

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Q:

Which among the following is white phosphorus?

A) P1	B) P6
C) P4	D) P5

Answer & Explanation Answer: C) P4

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Q:

What are the main components of Brass Alloy?

A) Copper and Zinc	B) Copper and Strontium
C) Copper, Zinc and Nickel	D) Copper and Nickel

Answer & Explanation Answer: A) Copper and Zinc

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Q:

The chemical formula of Ammonia is _____ .

A) NH	B) NH1
C) NH2	D) NH3

Answer & Explanation Answer: D) NH3

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Q:

Barium loses ____ electrons to achieve noble gas electron configuration.

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: B) 2

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Q:

Isotones have always ______

A) Same number of protons	B) Same atomic number
C) Same number of neutron	D) Same number of proton and same numbe of neutron

Answer & Explanation Answer: C) Same number of neutron

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Q:

Bee sting contains________________

A) An acidic liquid	B) a salt solution
C) an alkaline liquid	D) a corrosive liquid

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