February 2019

A. Usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and
finally washed with methylated spirit to achieve transparency
B. Metallic soaps with frothing agent and free Stearic acid to achieve transparency
C. Metallic soaps with frothing agent from which glycerine has not been recovered
D. None of these

A. -5 to 0
B. 5 to 10
C. 30 to 50
D. 75 to 80

A. Separation of isotopes of uranium from gaseous uranium hexafluoride
B. Separation of helium from natural gas
C. Desalination of brackish water to produce potable (drinking) water
D. Purification of oxygen

A. DDT
B. BHC
C. Parathion
D. None of these

A. Less changes in fluidity of oil with temperature
B. Substantially high change in fluidity of oil with temperature
C. Its unsuitability under varying temperature conditions
D. None of these

A. Oil of vitriol
B. Muriatic acid
C. Strong organic acid
D. Green acid

A. Amorphous isotropic material
B. Supercooled liquid
C. Material with sharp definite melting point
D. Electrical insulator

A. Mixture of glycerides
B. Mixture of esters of polyhydric alcohols excepting glycerine
C. Liquid at room temperature
D. Mixture of glycerides of fatty acids

A. 1
B. 2.5
C. 5
D. 10

A. Lower melting point & higher reactivity to oxygen
B. Higher melting point & higher reactivity to oxygen
C. Lower melting point & lower reactivity to oxygen
D. Higher melting point & lower reactivity to oxygen