A. Amorphous isotropic material
B. Supercooled liquid
C. Material with sharp definite melting point
D. Electrical insulator
Related Mcqs:
- Which of the following is not a raw material used for the manufacture of ordinary glass ?
A. Iron oxide
B. Soda ash
C. Limestone
D. Silica - Coloured glass is obtained by mixing of colored salts. Addition of ___________________ oxide is done to impart greenish blue color to the glass?
A. Chromium
B. Arsenic
C. Copper
D. Manganese - Laboratory glass wares which reacts with hydrofluoric acid, are made of the ______________ glass?
A. Lead
B. Borosilicate
C. Soda lime
D. Alkali silicate - ___________________ glass is used for the manufacture of optical glass ?
A. Pyrex
B. Soda
C. Flint
D. Crooke’s - Type of glass used in optical work is the ___________________ glass?
A. Soda-lime
B. Fibre
C. Lead
D. Borosilicate - Commonly used glass is known as the _______________ glass?
A. Flint
B. Hard
C. Pyrex
D. Soda - The type of high refractive index glass used in optical instruments is _____________ glass?
A. Pyrex
B. Flint
C. Crookes
D. None of these - A mixture of chlorine & sodium bromide acts as a/an_________________?
A. Insecticides
B. Analgesic drug
C. Fire retardant
D. Hydrogenation catalyst - Bitterns is a/an_________________?
A. Unsaturated fat
B. Starting material for the production of iodine
C. By-product of chlor-alkali industry
D. None of these - Fusel oil is a/an_________________?
A. Essential oil
B. Extract from medicinal herbs
C. Mixture of higher molecular weight alcohols (a by-product obtained during production of
alcohol from molasses)
D. None of these