PPSC Chemistry Part VI Applied/Industrial Chemistry Online Test With Answers

PPSC Chemistry Part VI Applied/Industrial Chemistry Online Test

Sr. # Questions Answers Choice
1 Each fat or oil in made up of A distinctive mixture of several different triglycorides A distinctive mixture of several aldehydes Mixture of above both None of above
2 Soapy detergents and soapless detergents behave differently in hard water because they Have different hydrophilic heads Have different hydrophobic hydrocarbon chains Have different pH values Above A and C both
3 What is use of the addition of brine solution in the production of soap from castor oil and sodium hydroxide. To speed up the reaction To lower the solubility of soap To remove unreacted castor oil and sodium hydroxide To increase the purity of the soap obtained.
4 in the process of production of soap the soap can be salted out by adding Concentrated sulphuric acid Concentrated potassium hydroxide solution Concentrated sodium chloride solution None of above
5 The alkaline hydrolysis of fat is know as Condensation Esterification Saponification Emulsification
6 Which type of organic compounds does fat belong to. Alkene Ester Alkanol Alkanoic acid
7 Which of the following does NOT react with sodium hydroxide solution. Fat Vinegar Ethanol Water
8 Soap is soluble in grease because it Is non polar Has a hydrophobic head Has a hydrophobic tail Has an ionic head and a hydrocarbon tail
9 When a drop of detergent solution is added onto a clean towel. It spreads instead of existing as a droplet Which of the following statements explains this phenomenon. Detergent acts as an emulsifying agent Detergent reduce surface tension of water Detergent reduces surface tension of water All of above
10 The green color of water in a lake is due to Excessive growth of sea weeds Algae Pollution Grass
11 Soap and detergent remove the direct form clothes due to. Osmosis Gravity Lowering of interfacial tension Diffusion
12 Which of the following are anionic detergents. Sodium salts of sulfonated long chain alcohol Ester of stearic acid and polythlene glycol Quaternary ammonium salt of amine with acetate ion Sodium salts of sulfonated long chain hydrocarbons
13 Polyethylene Glycols are used in the preparation of which tye of detergetns. Cationic detergents Anionic detergents Non ionic detergent soaps None of above
14 In the process of preparation of detergents the organic acids produced are neutralized with. Sodium hydroxide Sodium sulphate Sodium chloride Potassium hydroxide
15 The by -product of the process of saponification is. Methanol Glycol Glycerol Absolute alcohol
16 During the preparation of soap the liquid separated by distillation is Sodium hydroxide Oil Fats Glycerol
17 Which of the following is a component of soap. Sodium sulphate Sodium stearate Sodium chloride Sodium bromide
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