Q. Permanent hardness of water can be removed by

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Q. Celluloid is chemically

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Q. Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of

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Q. Which of the following is an explosive ?

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Q. Zeolite is used in the

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Q. Thermoplastic materials

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Q. Chrome tanning and vegetable tanning are done for

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Q. Catalyst used during the manufacture of 'Vanaspati Ghee' is

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Q. Iron ore hametite is concentrated using

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Q. Refractory bricks burnt at very high temperature have got

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Q. Nitrile rubber is produced by the polymerisation of

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Q. Baking soda is chemically represented by

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Q. P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as

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Q. Which of the following is an additional step in the manufacture of paper from bagasse as compared to that from bamboo ?

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Q. Percentage of glycerene present in the spent lye obtained during soap manufacture is about

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Q. Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent.

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Q. Commercial production of Vanaspati is done by __________ of edible vegetable oils.

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Q. Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene ?

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Q. Phenolic antiseptics are added in the __________ soap.

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Q. Solvay process is used for the manufacture of

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