Chemical Process

A. H2SO3
B. H2SO4
C. H2S2O7
D. H2SO7

A. Yields acid of higher concentration than chamber process
B. Yields acids of lower concentration than chamber process
C. Is obsolete
D. Eliminates absorber

A. High pressure & low temperature
B. Low pressure & high temperature
C. High pressure & high temperature
D. Low pressure & low temperature

A. Styrene
B. Phenol
C. Benzene
D. Tri-nitro-toluene

A. Controlling timber degradation by ants
B. Controlling poultry lice
C. Potato beetle
D. Citrus fruits

A. Extraction with amyl or butyl acetate
B. Ternary Azeotropic distillation
C. Evaporator in calandria
D. Extractive distillation

A. Viscose rayon
B. Corundum
C. Plasticiser for unsaturated polyester
D. Paints

A. SO3 gas is sparingly soluble in water
B. Water forms an acid mist, which is difficult to absorb
C. The purity of acid is affected
D. Scale formation in the absorber is to be avoided

A. Phenol formaldehyde
B. An inorganic polymer
C. Poly tetra-fluoro-ethylene (P.T.F.E.)
D. A monomer

A. 5
B. 70
C. 500
D. 1700