Basic oxide is absent in ___________________ 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. ___________________ glass is used for the manufacture of optical glass ?

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

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

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

4. Which of the following processes is absent in glass manufacturing process ?

   A. Sintering
   B. Annealing
   C. Shaping or forming
   D. Melting

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

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

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

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

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

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

8. The basic constituent of vegetable oils is ___________________?

   A. Triglyceride
   B. Fatty acids
   C. Fatty alcohol
   D. Mono esters

9. The basic difference between vegetable oils and fats is in their ___________________?

   A. Density
   B. Chemical properties
   C. Physical state
   D. Composition

10. Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at __________________?

    A. 1 atm & 100°C
    B. 5 atm & 275°C
    C. 100 atm & 500°C
    D. 50 atm & 1000°C