Type of glass used in optical work is the __________ glass.

A. Soda-lime

B. Fibre

C. Lead

D. Borosilicate

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. Esterification reaction produces
  2. The drug used in contraceptives is
  3. Cumene is the starting material for the production of
  4. __________ are added in lacquers to remove film brittleness and to improve adhereness.
  5. The end bleaching agent used to move last traces of colour bodies from the pulp is
  6. During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to
  7. Permanent hardness of water can be removed by
  8. A good quality coal should have
  9. In industrial nomenclature, alcohol means
  10. Nylon-6 is a
  11. Presence of sodium tripolyphosphate (an additive) in synthetic detergent
  12. Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively
  13. Which of the following is the purest form of water out of the following?
  14. Fusel oil is a/an
  15. Coal tar is used as a
  16. Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving)…
  17. Bakelite is chemically known as
  18. Phenol formaldehyde is produced by condensation polymerisation. It is also known as
  19. In the manufacture of viscose rayon, the raw material used industrially is
  20. Insulin is an __________ drug.
  21. Lurgi coal gasifier is a pressurised __________ bed reactor.
  22. Coke used for the production of calcium carbide should have
  23. __________ process is used for the manufacture of sodium carbonate by ammonia soda process.
  24. Glycerine can be obtained from
  25. How much temperature is maintained during quicklime manufacture in the calcination zone of the vertical…
  26. Styrene butadiene rubber (SBR) is
  27. Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be…
  28. Plasticisers are added to synthetic plastics to
  29. Carboxymethyl cellulose (CMC) is added in detergents to
  30. Average sulphur content in Indian pyrites is about __________ percent.