337. Shrinkage volume in cement setting does not depend upon the
338. __________ is a polysacchride.
339. The catalyst used in the manufacture of DDT is
340. The basic difference between vegetable oils and fats is in their
341. Washing of coal is done to
342. Pick out the wrong statement pertaining to the soap manufacture.
343. Laboratory glass wares which reacts with hydroflouric acid, are made of the __________ glass.
