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