Question

In which of the following silicates, cyclic structure is present?

• A. Zeolite
• B. Asbestos
• C. Emerald
• D. Talc

Answer 1

Answer: (C)

Emerald

Answer 2

(1) Zeolite is a three dimensional sheet silicate.

(2) Asbestos is double change silicate.

(3) Emerald is a cyclic silicate having $Si_{6}O_{18}^{12 -}$ units containing 1 – 2% Cr giving green colour.

(4) Talc is two dimensional sheet silicate.