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You Are On Multi Choice Question Bank SET 347

17351. Chemical name of aspirin (an analgesic drug) is





17352. Which is the most efficient absorbant for SO3 out of the following ?





17353. Coal tar is used as a





17354. Caprolactum (a raw material for nylon-6 manufacture) is produced from





17355. The purpose of adding Na2CO3 to water of low alkalinity is to





17356. Ca(OH)2 is called





17357. Percentage of uranium in carnotite ore found in Jadugoda (Jharkhand) is about





17358. Potassium is kept & transported under





17359. The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by





17360. Bakelite is chemically known as





17361. Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine ?





17362. Phthalic anhydride is made by the





17363. RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically





17364. Raw material used in alcohol distilleries in India is





17365. Oil produced by solvent extraction





17366. High acid value of an oil or fat is an indication of





17367. Yeast is used in the manufacture of





17368. Liquefaction of gases can not be done by





17369. Anion exchanger is regenerated usually with





17370. __________ is the major constituent of the Portland cement.





17371. Catalytic oxidation of naphthalene produces





17372. Parathion and Malathion are





17373. Transparent soaps (e.g. Pears) are





17374. Dehydrogenation of ethyl benzene produces





17375. Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces





17376. Lindane is





17377. Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate





17378. Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc?





17379. In the production of soda ash by Solvay process, the by-product is





17380. The ideal pulp for the manufacture of paper should have high __________ content.





17381. At very high concentration of enzymes, the rate of fermentation chemical reaction is __________ the concentration of reactants.





17382. Which of the following is a constituent of vinegar ?





17383. During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as





17384. Kopper-Totzek coal gasifier





17385. Addition of calcium oxide to water produces





17386. Sodium bisulphite is used for __________ water.





17387. Riboflavin is a/an





17388. Flash point of most vegetable oils is about __________ °C.





17389. Presence of sodium tripolyphosphate (an additive) in synthetic detergent





17390. Dense soda ash used in the manufacture of glass, is chemically represented by





17391. Reverse osmosis is normally used for the





17392. Hydrazine is largely used




17393. 'Synthesis gas' meant for the synthesis of organic compound is a variable mixture of





17394. Litharge is





17395. Coagulant is used __________ filtration.





17396. 10% oleum comprises of 10% free





17397. Use of chlorine in the treatment of sewage





17398. Removal of dirt/soil by soaps or detergent does not involve the __________ of soil.





17399. A unit operation is exemplified by the process of





17400. The major constituents of glass are





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