Assertion :Silicon sand is the major ingredient in virtually all types of glass. Reason: Silicon Sand is a brownish glassy material with high reflection like broken glasses.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Assertion
Silicon sand is the major ingredient in virtually all types of glass.
Other ingredients include alkali metal carbonates, sulphates, nitrates, alkaline earth metal carbonates, heavy metal oxides, calcium phosphate and colouring matter.
Reason
Silicon Sand is a brownish glassy material with high reflection like broken glasses.
To get high refractive index, $C a C O_{3}$ , $C a O$ and $B a C O_{3}$ are used.
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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