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10.17 What happens when (i) magnesium is burnt in air (ii) quick lime is heated with silica (iii) chlorine reacts with slaked lime (iv) calcium nitrate is heated ?
Answers (1)
(i) Magnesium is more electropositive and burns with dazzling brilliance in the air to give MgO and Mg3N.
(ii) Quick lime combined with silica to form calcium silicate which is used as slag.
(iii) when chlorine reacts with slaked lime it produces bleaching powder.
(iv) when calcium nitrate is heated is decomposed to give calcium
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