The main component of Pyrex glass is_____________________?

Related Mcqs:

1. Sudden temperature fluctuation does not affect pyrex glass, because of its __________________?

   A. Low co-efficient of expansion
   B. High co-efficient of expansion
   C. High melting point
   D. Both B. and (C)

2. Major component of flint glass is_____________________?

   A. Lead oxide
   B. Silica
   C. Alumina
   D. Soda

3. 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

4. Laboratory glass wares which reacts with hydrofluoric acid, are made of the ______________ glass?

   A. Lead
   B. Borosilicate
   C. Soda lime
   D. Alkali silicate

5. ___________________ glass is used for the manufacture of optical glass ?

   A. Pyrex
   B. Soda
   C. Flint
   D. Crooke’s

6. Type of glass used in optical work is the ___________________ glass?

   A. Soda-lime
   B. Fibre
   C. Lead
   D. Borosilicate

7. Commonly used glass is known as the _______________ glass?

   A. Flint
   B. Hard
   C. Pyrex
   D. Soda

8. The type of high refractive index glass used in optical instruments is _____________ glass?

   A. Pyrex
   B. Flint
   C. Crookes
   D. None of these

9. The main product of high temperature carbonisation of coal is_____________________?

   A. Coke
   B. Ammonia
   C. Tar
   D. Phenol

10. Electric bulbs are made of _______________ glass ?

    A. Jena
    B. Flint
    C. Crookes
    D. Pyrex