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Statement-I : Adamantine silicon is obta...

Statement-I : Adamantine silicon is obtained by heating silica with aluminium.
Statement-II : Adamantine silicon is an alloy of aluminium and silicon.

A

Both A and R are true and R is the correct explanatoin of A

B

both A and R are true but R is the correct explanation of A

C

A is true but R is false

D

A is false but R is true

Text Solution

Verified by Experts

The correct Answer is:
C
Reason: Adamantine is a purer form of silicon.
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Knowledge Check

  • A p-type semiconductor is obtained by doping silicon with

    A
    germanium
    B
    gallium
    C
    bismuth
    D
    phosphorus

  • The correct statement about silicone is

    A
    They are ketones with silyl group `(SiH_(3))` similar to alkyl, `(SiH_(3))_(2)CO`
    B
    They are synthetic polymer containing repeated `R_(2)SiO_(2)` units
    C
    They are formed by hydrolysis of `R_(2)SiCl_(2)`
    D
    All of the above

  • Which statement about silicon is false?

    A
    It is a metalloid.
    B
    It behaves as a semiconductor when pure.
    C
    It is extremely rare in the earth's crust.
    D
    It has a smaller atomic radius than aluminium.