Why does dry HCl gas not change the colour of the dry litmus paper?
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The hardest substance in the human body is
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Salts of a strong acid and weak base are
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Large crystals of raw salt from the deposits of solid salts are of which colour, in general?
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The chemical formula of Plaster of Paris is
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The common name of CaOCl2 is
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Which sodium compound is used for softening hard water?
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A solution turns red litmus blue, its pH is likely to be
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10 mL of a solution of NaOH is found to be completely neutralised by 8 mL of a given solution of HCl. If we take 20 mL of the same solution of NaOH, the amount HCl solution (the same solution as before) required to neutralise it will be
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What happens to the smell of vanilla or onion in the presence of Acids?
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One of the constituents of baking powder is sodium hydrogencarbonate the other constituent is
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To protect tooth decay we are advised to brush our teeth regularly. The nature of the tooth paste commonly used is
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