Q. Soaps remove dirt by

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Q. Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement ?

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Q. Chemical name of soda ash is

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Q. A substance produced by a living organism and capable of anti-microbial activity is called a/an

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Q. Deaeration of water in its treatment is necessary, as it

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Q. Hydrochloric acid is also known as

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Q. Aryl benzene sulphonate (ABS) is a

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Q. Adipic acid is an intermediate in the manufacture of

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Q. In multistage equilibrium conversion of SO₂ to SO₃ (2SO₂ + O₂ ↔ 2SO₃), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO₂ to SO₃ can be increased by

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Q. Tall oil obtained as a by-product from the black liquor recovery is

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Q. __________ is a polysacchride.

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Q. Acetone is produced by catalytic dehydrogenation of

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Q. Ceramics are produced from silicates or clayish materials: Which of the following is not a ceramic material ?

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Q. Glass is

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Q. Analgesic drugs are

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Q. Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen is about __________ °C.

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Q. Commonly used glass is known as the __________ glass.

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Q. Pure rectified spirit contains about __________ percent alcohol.

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Q. Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.

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Q. Titanium dioxide is a/an __________ colour pigment.

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