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Question

Match the following:

(i)Can have variable composition of constituent elements(A)Compound(ii)    is new substance formed due to reaction of  two  constituent elements(B)Mixture(iii)Constituent elements can be separated easily(C)Element(iv)Can be separated only by chemical or electrochemical reactions(v)Composition is always fixed(vi)Shows properties of constituent elements
The correct pairs are:-



A

(ii,iii, v) – A, (iv, i) – B

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B

(iv, v) – A, (iii, i) – B, (ii) - C

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C

(ii, iv, v) – A, (iii, i) – B

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D

(iv, v) – A, (iii) – B, (ii, i) - C

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Solution

The correct option is B

(ii, iv, v) – A, (iii, i) – B


Compound: It is a new substance formed due to reaction of two constituent elements. They can be separated only by chemical or electrochemical reactions. The composition of a compound is always fixed.
Mixture: They have variable composition of constituent elements. The constituent elements can be separated easily. Each constituent shows its individual properties.
Element: It is a substance that consists of atoms which have the same number of protons. They are chemically the simplest substances and hence cannot be broken down using chemical methods.
Therefore, the correct answer is: (ii, iv, v) – A, (iii, vi, i) – B


Chemistry

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