Q. Which of the following coals has the highest calorific value ?

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Q. Which of the following is not an abrasive material ?

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Q. Pick out the wrong statement.

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Q. Finely ground calcium aluminate & silicate is a/an

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Q. The main component of pyrex glass is

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Q. Alum [Al₂(SO₄)₃] is used as a coagulant in water treatment to remove

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Q. __________ is an ore concentrating metallurgical process involving a chemical change.

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Q. Basic oxide is absent in __________ glass.

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Q. Graphite is a/an

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Q. Molasses is the starting material for the production of

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Q. BHC (Benzene hexachloride) is made by the chlorination of benzene

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Q. Diaphragm electrolytic cell as compared to mercury electrolytic cell

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Q. Calcareous & argillaceous materials are used in the manufacture of

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Q. Pick out the wrong statement.

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Q. __________ is used as a flux in the smelting of copper ore like chalcopyrite.

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Q. Hydrogenation of oil does not

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Q. Main constituents of cotton fiber is

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Q. CaCl(OCl) is the chemical formula of

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Q. In an integrated steel plant, NH₃ present in coke oven gas is normally recovered as

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Q. Flexible foam (for mattresses) is usually made of

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