Question

A. $CC{l}_4$ does not act as lewis acid.
B. Silanes are strong reducing agents.
C. Crystalline silica will have Diamond like structure.
Which of the above statement(s) is/are true?

• A. A & B
• B. only 'A'
• C. only 'B'
• D. A, B & C

Answer 1

The correct option is D A, B & C

$CC{l}_4$ is electron precise. Hence it is not a lewis acid.
Silanes possess $Si-H$ bonds, in which the $Si$ atom has a partial positive charge and the $H$ atoms have a partial negative charge. Thus, silanes can donate a $H^{-}$ ion, which can act as reducing agents.
Crystalline silica does have diamond like structure.