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What type of chemical reactions take place when (a) a magnesium wire is burnt in air ? (b) lime-stone is heated ? (c) silver bromide is exposed to sunlight ? (d) electricity is passed through water ? (e) ammonia and hydrogen chloride are mixed ? |
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Answer» (a) Combination. (b) Decomposition. (c) Decomposition. (d) Decomposition. (e) Combination. |
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