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Question:- Which type of fire extinguisher is used for petroleum fire? A. Powder type B. Liquid type C. Soda acid type D. Foam type
Answer:- Option A
Question:- Epoxy resins are used as A. detergents B. insecticides C. adhesives D. moth repellents
Answer:- Option C
Question:- Detergents used for cleaning clothes and utensils contain? A. bicarbonates B. bismuthates C. sulphonates D. nitrates
Answer:- Option C
Question:- Which of the following is used for removing air bubbles from glass during its manufacture? A. Arsenous oxide B. Potassium carbonate C. Soda ash D. Feldspar
Answer:- Option A
Question:- Which of the following is a protein? A. Natural rubber B. Starch C. Cellulose D. None of these
Answer:- Option A
Question:- Wood is the main raw material for the manufacture of A. paint B. paper C. ink D. gun powder
Answer:- Option B
Question:- Rayon is chemically A. cellulose B. pectin C. glucose D. amylase
Answer:- Option A
Question:- Optic fibres are mainly used for which of the following? A. Musical instruments B. Food industry C. Weaving D. Communication
Answer:- Option D
Question:- The major ingredient of leather is A. collagen B. carbohydrate C. polymer D. nucleic acid
Answer:- Option A
Question:- What are the soaps? A. Salts of silicates B. Mixture of glycerol and alcohols C. Sodium or potassium salts of heavier fatty acids D. Esters of heavy fatty acids
Answer:- Option C
Question:- How does common salt help in separating soap from the solution after saponification? A. By decreasing density of Soap B. By decreasing solubility of Soap C. By increasing density of Soap D. By increasing solubility of Soap
Answer:- Option B
Question:- In vulcanisation, natural rubber is heated with A. Carbon B. Silicon C. Sulphur D. Phosphorous
Answer:- Option C
Question:- Deep blue colour is imparted to glass by the presence of A. cupric oxide B. nickel oxide C. cobalt oxide D. iron oxide
Answer:- Option C
Question:- Glass is made of the mixture of A. quartz and mica B. sand and silicates C. salt and quartz D. sand and salt
Answer:- Option B