Question

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Answer 1

QUESTION :-

A SOFT METAL STORED UNDER KEROSENE

ANSWER :-

Sodium (Na) since sodium vigorously reacts with air and water .

QUESTION :-

An element with variable valency stored under water

ANSWER :-

Phosphorus (P) since it reacts with air when kept in open air .

QUESTION :-

Name an element which is tetravalent and forms the basic of organic chemistry

ANSWER :-

Carbon (C)

QUESTION :-

Name an element which is an inert gas with atomic number 2

ANSWER :-

Helium (He)

QUESTION :-

Aluminium (Al)

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