A. Flint
B. Soda
C. Pyrex
D. Potash
Related Mcqs:
- ______________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant ?
A. Pyrex
B. Soda lime
C. Lead
D. High silica - Co-efficient of thermal expansion of glass is decreased by the addition of _______________ during its manufacture?
A. CaO
B. MnO2
C. ZnO
D. FeS - Laboratory glass wares which reacts with hydrofluoric acid, are made of the ______________ glass?
A. Lead
B. Borosilicate
C. Soda lime
D. Alkali silicate - The type of high refractive index glass used in optical instruments is _____________ glass?
A. Pyrex
B. Flint
C. Crookes
D. None of these - 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 - ___________________ 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 - Refractory bricks having high thermal conductivity is desirable, when it is to be used in the _________________?
A. L.D. converter
B. Blast furnace
C. Rotary kiln
D. Recuperator - At very high concentration of enzymes, the rate of fermentation chemical reaction is _____________ the concentration of reactants?
A. Independent of
B. Directly proportional to
C. Inversely proportional to
D. Proportional to the square of
