Reaction of an alcohol with organic acid is called the ________________ reaction?
A. Saponification
B. Esterification
C. Neutralisation
D. Acidification
Chemical Process
The major use of butadiene is____________________?
The major use of butadiene is____________________?
A. As a plasticiser for unsaturated polyester
B. In the manufacture of synthetic rubber
C. As an anti-skinning agent in paint
D. None of these
Which glass is usually used in optical work ?
Which glass is usually used in optical work ?
A. Lead glass
B. High silica (borosilicate) glass
C. Photo-sensitive glass
D. Fibre glass
________________ acid is an unsaturated fatty acid ?
________________ acid is an unsaturated fatty acid ?
A. Palmitic
B. Oleic
C. Stearic
D. Oxalic
Which of the following paper does not require a filler during manufacture ?
Which of the following paper does not require a filler during manufacture ?
A. Bond paper
B. Writing paper
C. Blotting paper
D. Coloured paper
Fourdrinier machine is used in the manufacture of ___________________?
Fourdrinier machine is used in the manufacture of ___________________?
A. Sugar
B. Paper
C. Alcohol from molasses
D. Phenol formaldehyde
A mineral is termed as ‘ore’, if ____________________?
A mineral is termed as ‘ore’, if ____________________?
A. A metal can be economically extracted from it
B. It contains ≥ 40% metal
C. The metal present in it is costly
D. All A , B. and C.
Na2CO3 is called _________________?
Na2CO3 is called _________________?
A. Washing soda
B. Soda ash
C. Plaster of Paris
D. Calcite
Hydrogenation of oil takes place in a/an ____________________ reactor ?
Hydrogenation of oil takes place in a/an ____________________ reactor ?
A. Autothermal
B. Trickle bed
C. Plug flow
D. None of these
Salt is the basic raw material for the manufacture of____________________?
Salt is the basic raw material for the manufacture of____________________?
A. Cement
B. Glass
C. Potteries
D. Caustic soda