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Q.

Which of the halogen is most abundant in the earth’s crust?

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a

Br

b

Cl

c

F

d

I

answer is A.

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Detailed Solution

Fluorine is the halogen that is present in the highest concentration in the crust of the Earth. In the igneous rocks that make up the Earth's crust, halogens are present in percentages of 0.06 fluorine, 0.031 chlorine, 0.00016 bromine, and 0.00003 iodine.

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