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Q:

Neutron was discovered by

A) J.J.Thomson B) Chadwick
C) Rrutherford D) Priestley
 
Answer & Explanation Answer: B) Chadwick

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Q:

Cathode rays have

A) mass only B) charge only
C) no mass and no charge D) mass and charge both
 
Answer & Explanation Answer: D) mass and charge both

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Q:

Cathode rays are 

A) electromagnetic wave B) stream of alpha particle
C) stream of electrons D) radiations
 
Answer & Explanation Answer: C) stream of electrons

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Q:

An alloy is

A) a compound B) an allotropic form
C) an isomer D) a mixture
 
Answer & Explanation Answer: D) a mixture

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Q:

The most abundant metal in earth crust is

A) Iron B) magnesium
C) calcium D) aluminium
 
Answer & Explanation Answer: D) aluminium

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Q:

The credit for the discovery of transuranic element goes to

A) Hahn B) Rutherford
C) Seaborg D) Curie
 
Answer & Explanation Answer: C) Seaborg

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Q:

A pure substance can only be

A) Compound B) an element
C) an element or a compound D) a heterogeneous mixture
 
Answer & Explanation Answer: C) an element or a compound

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Q:

Who is the father of modern chemistry?

A) Priestley B) Lavoisier
C) Dalton D) Mendeleeff
 
Answer & Explanation Answer: B) Lavoisier

Explanation:

Antoine-Laurent de Lavoisier, a french chemist is considered as the "Father of Modern Chemistry."

who_is_the_father_of_modern_chemistry1538547478.jpg image

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