question_answer

A brief information about three substances is given :

X: Transparent, smooth to touch and insulator.

Y: Yellow in colour, good conductor of heat and electricity, lustrous.

Z: Man made material, an insulator, used to make switches and handles of cooking utensils.

X, Y and Z could be respectively

A) Water, copper, aluminium

B) Glass, gold, plastic

C) Paper, aluminium, copper

D) Silver, gold, copper.