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Optical Fiber

Assertion A :...

Question

Assertion (A) : Silica is less harder than diamond .
Reason (R) : Silica has only two dimensional network .

A

Both A and R are true and R is correct
explanation of A

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B

Both A and R are true and R is not correct
explanation of A

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C

A is true but R is false

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D

A is false but R is true.

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Solution

The correct option is A A is true but R is false
3 dimensional silicates exist. Eg: Quartz.

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