Q501
Open questionThe most pure form of Carbon among the options is
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Q502
Open questionCarbon footprint can be reduced by
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Q503
Open questionWhich of the following gases is most toxic ?
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Q504
Open questionWhy is water not suitable for putting out a petrol fire ?
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Q505
Open questionWhich of the following is used as a lubricant in heavy machines?
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Q506
Open questionWhich of the following is used in making smoke bombs?
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Q507
Open questionWater gas is the mixture of
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Q508
Open questionIn electro-refining, the pure metal is deposited on
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Q509
Open questionWhich of the following electrodes is used in strongly alkaline solution?
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Q510
Open questionThe laws of electrolysis are given by
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Q511
Open questionElectrolysis of an aqueous solution of copper sulphate using copper electrodes gives
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Q512
Open questionAluminium can be purified by
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Q513
Open questionThe aqueous solution of potassium chloride is
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Q514
Open questionSodium is produced by the electrolysis of
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Q515
Open questionBleaching powder is prepared by passing :
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Q516
Open questionMost commonly used bleaching agent is
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Q517
Open questionThe acid which is secreted by the glands in the stomach wall is
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Q518
Open questionHydrochloric acid is also known as
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Q519
Open questionHeating of a ore below its melting point in the absence of air is known as
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Q520
Open questionStainless steel is usually made by alloying the steel with
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