A. Sodium sulphite

B. Sodium thiosulphate

C. Sodium bicarbonate

A. Causes bulking of activated sludge

B. Increases the biological oxygen demand (BOD)

D. Aids in flocculation

A. Acetone

C. Phenol

D. Maleic anhydride

A. Flowers of sulphur

B. Plastic

D. Monoclinic

A. Oil hydrogenation

B. Steaming reforming of naphtha

D. Ammonia cracking/dissociation

A. CO2 & H2

C. N2 & H2

D. C & H2

A. Increase the density of cement

C. Both A. and B.

D. Neither A. nor B.

A. Low co-efficient of thermal expansion

C. High electrical insulation properties

D. Compressive strength much greater than their tensile strengths

A. Anaerobic

C. Endothermic

D. Both B. and C.

A. Supplying hydrophilic group

B. Decreasing wettability

C. Increasing the surface tension

A. 20

B. 85

D. 10

A. ally washed with methylated spirit to achieve transparency</strong>

B. Metallic soaps with frothing agent from which glycerine has not been recovered

D. None of these

E. Metallic soaps with frothing agent and free Stearic acid to achieve transparency

A. Inversely proportional to

B. Proportional to the square of

D. Directly proportional to

A. Low carbon conversion efficiency is achieved

C. Coking coals cannot be used

D. Entrainment of solids is higher

A. Increases with the increasing flake size keeping the flake thickness constant

B. Increases considerably with the rise of temperature

D. Decreases with decrease of thickness of the flakes

B. Citric acid

C. Benzoyl peroxide

D. Invertage

A. Removal of fatty and albuminous substance from it

B. None of these

D. Inhibiting the growth of micro-organisms without killing them

E. ural characteristics</strong>

A. 70

B. 55

D. 80

A. Endothermic

B. Exothermic

C. Irreversible

B. CaCl(OCl)

C. CaSO4.H2O

D. (NH4)2SO4

A. Esterification

B. None of these

C. Hydrogenation

A. Nylon-66

C. Dacron

D. Rayon

A. 2

C. 10

D. 50

B. A thermosetting material

C. A condensation polymerisation product

D. None of these

A. Humidification

B. Distillation

C. Absorption

A. Washing soda

B. Alum

D. Calcium carbide

A. Catalytic

B. Autocatalytic

C. Exothermic

A. Same as Polytetrafluoroethylene (PTFE)

C. Not a polymer

D. An inorganic polymer

A. Application of activated carbon reduces the temporary hardness of water

B. Slow sand filters can remove colour completely

D. Activated carbon can be used for taste & odour control without subsequent filtration

A. Silica, alumina and clay

C. Lime, clay and soda ash

D. Silica, alumina and soda ash

A. Hydrazine

B. H2SO4

C. Alum solution

A. 1500C

B. 750C

C. 500C

A. Food preservative

B. Anti-pyretic drug

C. Dye

A. 200-300

B. 4000-4500

D. 700-850

B. Green acid

C. Strong organic acid

D. Oil of vitriol

A. Chamber process of sulphuric acid manufacture produces pure acid of concentration < 80%

B. 75% oleum can be produced by distillation of 20% oleum

D. Contact process of sulphuric acid manufacture produces pure acid of concentration ? 98%

A. Decreases linearly

B. Increases linearly

D. Increases

A. Salt petre

B. Quick lime

D. Glaubers salt

A. Isopropyl alcohol

B. Cumene

D. Zeolite

B. Electrolysis

C. Freeze drying

D. Solar evaporation

A. After

B. To avoid

D. During

A. 65% oleum

B. 20% oleum

D. 78% H2SO4

A. Perspex

B. Bakelite

D. Polystyrene

B. Xanthates

C. Stearic acid

D. Formic acid

A. Chemical properties

B. Density

C. Composition

A. Hydrogen peroxide

B. Chlorine

D. Chloramine

A. 100

B. 80

C. 90

B. Furniture

C. Books

D. Card boxes

A. Alumina

B. Vanadium

D. Silica gel

A. Increase the rate of absorption

B. Reduce the cooling water circulation rate

D. None of these