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Question

Silicon is an important constituent of:

A
chlorophyll
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B
haemoglobin
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C
rocks
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D
amalgams
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Solution

The correct option is D rocks
Chlorophyll has magnesium as an important metal, haemoglobin has iron as its important constituent, amalgams are mixtures of something with mercury. Note that, silicon is the most abundant element in earth's crust.

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