Synthetic Materials MCQS

                                     Synthetic Materials MCQS

1.	Which is/are the important raw material(s) required in cement industry?
	A. Gypsum and Clay B. Clay C. Limestone and Clay D. Limestone Answer & Explanation Answer: Option C

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2.	Which type of fire extinguisher is used for petroleum fire?
	A. Powder type B. Liquid type C. Soda acid type D. Foam type Answer & Explanation Answer: Option A

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3.	Which of the following is commonly called a 'polyamide'?
	A. Terylene B. Nylon C. Rayon D. Orlon Answer & Explanation Answer: Option B

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4.	Epoxy resins are used as
	A. detergents B. insecticides C. adhesives D. moth repellents Answer & Explanation Answer: Option C

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5.	Detergents used for cleaning clothes and utensils contain?
	A. bicarbonates B. bismuthates C. sulphonates D. nitrates Answer & Explanation Answer: Option C

6.	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 & Explanation Answer: Option A

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7.	Which of the following is a protein?
	A. Natural rubber B. Starch C. Cellulose D. None of these Answer & Explanation Answer: Option A

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8.	Wood is the main raw material for the manufacture of
	A. paint B. paper C. ink D. gun powder Answer & Explanation Answer: Option B

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9.	Rayon is chemically
	A. cellulose B. pectin C. glucose D. amylase Answer & Explanation Answer: Option A

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10.	Optic fibres are mainly used for which of the following?
	A. Musical instruments B. Food industry C. Weaving D. Communication Answer & Explanation Answer: Option D

11.	The major ingredient of leather is
	A. collagen B. carbohydrate C. polymer D. nucleic acid Answer & Explanation Answer: Option A

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12.	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 & Explanation Answer: Option C

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13.	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 & Explanation Answer: Option B

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14.	In vulcanisation, natural rubber is heated with
	A. Carbon B. Silicon C. Sulphur D. Phosphorous Answer & Explanation Answer: Option C

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15.	Deep blue colour is imparted to glass by the presence of
	A. cupric oxide B. nickel oxide C. cobalt oxide D. iron oxide Answer & Explanation Answer: Option C

16.	Glass is made of the mixture of
	A. quartz and mica B. sand and silicates C. salt and quartz D. sand and salt Answer & Explanation Answer: Option B

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17.	The vast resources of unutilised natural gas can be used in the production of
	A. graphite B. Synthetic petroleum C. fertilisers D. carbide Answer & Explanation Answer: Option C

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18.	Paper is manufactured by
	A. Wood and resin B. Wood, sodium and bleaching powder C. Wood, calcium, hydrogen sulphite and resin D. Wood and bleaching powder Answer & Explanation Answer: Option C

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19.	Gypsum is added to cement clinker to
	A. increase the tensile strength of cement B. decrease the rate of setting of cement C. facilitate the formation of colloidal gel D. bind the particles of calcium silicate Answer & Explanation Answer: Option B

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20.	Soap is a mixture of sodium or potassium salts of
	A. dicarboxylic acids B. monocarboxylic acids C. glycerol D. tricarboxylic acids Answer & Explanation Answer: Option B

21.	The type of glass used in making lenses and prisms is
	A. jena glass B. soft glass C. pyrex glass D. flint glass Answer & Explanation Answer: Option D

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22.

Which one of the following is the petroleum wax?

A. Paraffin wax B. Jonoba wax C. Carnauba wax D. Bees wax Answer & Explanation Answer: Option A Explanation: Paraffin wax is obtained from petroleum by dewaxing light lubricating oil stocks. It is used in candles, wax paper, polishes, cosmetics, and electrical insulators. It assists in extracting perfumes from flowers, forms a base for medical ointments, and supplies a waterproof coating for wood. In wood and paper matches, it helps to ignite the matchstick by supplying an easily vaporized hydrocarbon fuel.

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