Commonly used glass is known as the _______________ glass?

Related Mcqs:

1. 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

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

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

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

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

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

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

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

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

6. Co-efficient of thermal expansion of glass is decreased by the addition of _______________ during its manufacture?

   A. CaO
   B. MnO2
   C. ZnO
   D. FeS

7. Electric bulbs are made of _______________ glass ?

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

8. Which glass is usually used in optical work ?

   A. Lead glass
   B. High silica (borosilicate) glass
   C. Photo-sensitive glass
   D. Fibre glass

9. Basic oxide is absent in ___________________ glass?

   A. Flint
   B. Pyrex
   C. Quartz
   D. All A, B. & C

10. Superior quality laboratory apparatus is made of the _____________ glass having low thermal co-efficient of expansion & high chemical resistance?

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