Q. Type of glass used in optical work is the __________ glass.

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Q. Pick out the wrong statement pertaining to the soap manufacture.

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Q. Fusion of limestone and __________ produces high alumina cement.

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Q. Massacuits is a terminology used in the __________ industry.

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Q. The most economical pulp for the production of newsprint would be the __________ pulp.

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Q. Which of the following is the second major component of cement ?

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Q. Rotary kiln is not involved in the production of

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Q. Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C.

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Q. Vanillin is a type of

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Q. Temporary hardness of water can be removed by

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Q. More than 100 percent of __________ is present in oleum.

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Q. Essential oils are usually obtained using

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Q. Impurities present in brine is normally removed by treatment with

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Q. Hydrogenation of oil/fat does not

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Q. Solvay process as compared to dual process (i.e. modified Solvay process)

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Q. Builders are added in soap to act as

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Q. Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C.

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Q. Cement mainly contains

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Q. Sand and __________ is fused at 1300°C, to produce sodium silicate.

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Q. Coke used for the production of calcium carbide should have

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