Answer : B
Allotropy is a property by which an element can exist in more than one form that are physically different and chemically similar. The different forms of that element are called its allotropes. The main reason for the existence of allotropes of an element is its method of formation or preparation.
Answer : C
Answer : B
Answer : A
Answer : C
Answer : C
Answer : A
Answer : A
Answer : A
Answer : A
Answer : D
Answer: d
Answer :b
Answer : d
Answer : A
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