Day 2 Compiled

1. Which of the following is not a raw material used for the manufacture of ordinary glass? A. Iron oxide B. Soda ash C. Limestone D. Silica 2. Styrene butadiene rubber (SBR) is A. a natural rubber. B. a synthetic polymer. C. a synthetic monomer. D. another name of silicone rubber. 3. Dehydrogenation of isopropanol produces A. propyl alcohol B. acetone C. trichloroethylene D. formaldehyde

A. B. C. D.

is an exothermic reaction. increases their melting point. is done in presence of nickel catalyst. all (a), (b) and (c).

Thermosetting materials A. are cross-linked molecules. B. soften on application of heat. C. are solvent soluble. D. none of these. Deacon's method is used for the manufacture of A. glauber's salt B. common salt C. chlorine D. graphite electrode

Heating of __________ to 120°C, produces plaster of paris. A. blue vitriol B. gypsum C. calcium silicate D. calcium sulphate

Which of the following processes can remove both temporary as well as permanent hardness of water ? A. Filtration B. Boiling C. Distillation D. None of these

Sudden temperature fluctuation does not affect pyrex glass, because of its A. low co-efficient of expansion. expansion. B. high co-efficient of expansion. C. high melting point. D. both (b) and (c).

Shrinkage volume in cement setting does not depend upon the A. sand to cement ratio. B. water to cement ratio. C. ambient temperature fluctuation. D. drying period.

A. B. C. D.

The catalyst used in shift converter is nickel vanadium silica gel alumina

Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used A. as a lubricant. B. as a rust preventive. C. in hard water for cleaning of cloth. D. as a foam depressant in distillation column. Hydrogenation of edible vegetable oils