1. : Which does not react with sodium hydroxide solution?
(A) Fat
(B) Vinegar
(C) Benzene
(D) Carbon dioxide
2. : Which type of organic compound does fat belong to?
(A) Alkene
(B) Alkanoic acid
(C) Alkanol
(D) Ester
3. : In the process of production of soap, the soap can be salted out by adding
(A) Concentrated potassium hydroxide solution
(B) Concentrated sulphuric acid
(C) Concentrated sodium chloride solution
(D) Concentrated magnesium sulphate solution
4. : What is the use of the addition of brine solution in the production of soap from castor oil and sodium hydroxide?
(A) To speed up the reaction
(B) To lower the solubility of soap
(C) To increase the purity of the soap obtained
(D) To remove unreacted castor oil and sodium hydroxide
5. : Soap and detergents eliminate the dirt from clothes due to which of the following?
(A) Lowering of interfacial tension
(B) Gravity
(C) Osmosis
(D) Capillary action
6. : The green color of water in a lake is because of ______.
(A) Excessive growth of sea weeds
(B) Pollution
(C) Algae
(D) Grass
7. : 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 describes this phenomenon?
(A) Detergent acts as an emulsifying agent
(B) Detergent reduces the viscosity of water
(C) Detergent reduces the density of water
(D) Detergent reduces surface tension of water
8. : SDS is an example of which of the following?
(A) Anionic surfactants
(B) Cationic surfactant
(C) Non-ionic surfactants
(D) None of these
9. : Which factors determine the property of soap?
(A) Formulation
(B) Fatty acid chain length
(C) Saturation/unsaturation
(D) All of these
10. : Which fatty acid is not present in Tallow/animal fat?
(A) Steric acid
(B) Lauric acid
(C) Linoleic acid
(D) Palmitic acid
11. : Which of the following is the reaction of oils/fats with sodium hydroxide?
(A) Reduction
(B) Esterification
(C) Hydrolysis
(D) Saponification
12. : Which of the following are the major industrial applications of glycerol?
(A) It is used in production of alkyl resins
(B) Cosmetics and adhesives
(C) It is used in production of polyurethanes
(D) All of above
13. : Which substances is/are added as binders?
(A) Dextrin
(B) Talcum powder
(C) Starches
(D) All of above
14. : Soap is a salt of which compound?
(A) Amino acid
(B) Acetic acid
(C) Formic acid
(D) Fatty acid
15. : During the preparation of soap, the liquid separated by distillation is known as _____.
(A) Ethanol
(B) Glycerol
(C) Methanol
(D) Sodium hydroxide
16. : Which statement is true with respect to builders?
(A) Soften water
(B) Enhance the cleaning efficiency
(C) Disperse and suspend soil
(D) All of these
17. : Which substances are helpful as builders?
(A) Zeolites
(B) Sodium silicates
(C) Sodium sulfate
(D) All of these
18. : Which enzymes are helpful in detergents?
(A) Cellulases
(B) Lipases
(C) Proteases
(D) All of these
19. : Which fatty acids are used in soap manufacturing?
(A) Oleic acid
(B) Linoleic acid
(C) Steric acid
(D) All of these
20. : Which of the following are the substances which lower the surface tension of water?
(A) Surface active agents
(B) Surfactants
(C) Detergents
(D) All of above
21. : Which are anionic detergents?
(A) Sodium salts of sulfonated long chain hydrocarbons
(B) Ester of stearic acid and polyethylene glycol
(C) Sodium salts of sulfonated long chain alcohol
(D) Quaternary ammonium salt of amine with acetate ion
22. : Soft soap is made from _________ and fatty acids.
(A) KOH
(B) NaOH
(C) LiOH
(D) All of these
23. : Which fatty acids are present in palm kernel oil?
(A) Palmitic acid
(B) Linoleic acid
(C) Steric acid
(D) All of these
24. : Which fatty acid is not present in coconut oil?
(A) Linoleic acid
(B) Palmitic acid
(C) Steric acid
(D) Lauric acid
25. : Soapy detergents and soap less detergent behave differently in hard water because they
(A) Have different pH values
(B) Have different hydrophobic hydrocarbon chains
(C) Have different hydrophilic heads
(D) Are made by different chemical methods
26. : Each fat or oil is prepared with which of the following?
(A) A distinctive mixture of several aldehydes
(B) A distinctive mixture of several different triglycerides
(C) Mixture of above both
(D) None of above
27. : What is caustic potash?
(A) NaCl
(B) NaBH4
(C) NaOH
(D) KOH
28. : The soap and detergents are source of organic pollutants like:
(A) Polyphosphates
(B) Sulphonated hydrocarbons
(C) Glycerol
(D) All of these
29. : __________ is best in its cleaning action.
(A) Soap
(B) Surfactant
(C) Detergents
(D) None of these
30. : Turpentine is obtained from ___.
(A) Pine tree
(B) Oak tree
(C) Birch tree
(D) Lemon tree
31. : ________ surfactants perform well over a wide range of water hardness and pH.
(A) Anionic
(B) Nonionic
(C) Cationic
(D) None of these
32. : Washing soap can be prepared by saponification with alkali and of the following oil.
(A) Kerosene oil
(B) Paraffin oil
(C) Rose oil
(D) Groundnut oil
33. : CTAB is an example of which of the following?
(A) Anionic surfactant
(B) Non-ionic surfactant
(C) Cationic surfactant
(D) None of these
34. : Triton-31, an example of ____.
(A) Cationic surfactant
(B) Anionic surfactant
(C) Non-ionic surfactant
(D) None of these