611. Aryl benzene sulphonate (ABS) is a Detergent Plasticiser for unsaturated polyester Starting material for the synthesis of glycerine Coating ingredient for photographic film ✅ The correct answer is option A.
612. Transportation of 35% oleum during winter suffers from the problem of freezing, which can be overcome by the addition of small quantity of Nitric acid Hydrochloric acid Methyl alcohol Formic acid ✅ The correct answer is option A.
613. Nickel is not used as a catalyst in the Fischer-Tropsch process Shift conversion Hydrogenation of oil Ostwald’s process of HNO₃ manufacture ✅ The correct answer is option D.
614. Caprolactum (a raw material for nylon-6 manufacture) is produced from Phenol Naphthalene Benzene Pyridine ✅ The correct answer is option C.
615. Paper grade bamboo contains about __________ percent cellulose. 5 20 40 60 ✅ The correct answer is option A.
616. Sucrose content in cane sugar may be around __________ percent. 50 70 80 95 ✅ The correct answer is option D.
617. Which of the following is a constituent of vinegar? Around 10% alcohol Around 1% acetic acid Both A and B Neither A nor B ✅ The correct answer is option C.
618. Bromine is used in the preparation of Fire extinguishing compounds Fire proofing agents Dyes and antiknock compounds All of the above ✅ The correct answer is option D.
619. Chloral is used in the manufacture of DDT BHC Parathion None of these ✅ The correct answer is option A.
620. Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of Callagen Tannin Molasses Carbohydrate ✅ The correct answer is option A.