A. Lead oxide
B. Silica
C. Alumina
D. Soda
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Related Mcqs:
- The main component of Pyrex glass is_____________________?
- A. Zinc B. Lead C. Boron D. Selenium...
- 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...
- The major constituents of glass are____________________?
- A. Lime, clay and soda ash B. Sand, lime and soda ash C. Silica, alumina and clay D. Silica, alumina and soda ash...
- Which of the following is the second major component of cement ?
- A. Al2O3 B. SiO2 C. CaO D. Fe2O3...
- Ordinary glass is not a/an_________________?
- A. Amorphous isotropic material B. Supercooled liquid C. Material with sharp definite melting point D. Electrical insulator...
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