Chemistry
Permanent hardness of water due to sulphate of metals can be destroyed by the use of ________ ?
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Which of the following is the lightest substance known?
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Which of the following is used in beauty parlours for hair setting?
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Empirical formula of chloroform is____________________?
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We always see the same face of the moon, because?
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Galvanised Iron sheets have a coating of____________?
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Which among the following types of lenses are prescribed by doctors for a patient suffering from astigmatism?
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The chemical name of quartz is:
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Antifreeze is application of__________________?
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