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Fill in the blanks in the following statements:
(a) When carbon dioxide is passed through lime water, it turns milky due to the formation of [[1]].
(b) The chemical name of baking soda is [[2]].
(c) Two methods by which rusting of iron can be prevented are [[3]] and [[4]].
(d) Changes in which only [[5]] properties of a substance change are called physical changes.
(e) Changes in which new substances are formed are called [[6]] changes.

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answer is GALVANIZATION , SODIUM HYDROGEN CARBONATE, PAINTING, CHEMICAL CHANGE, CALCIUM CARBONATE , PHYSICAL CHANGE.

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Detailed Solution

a) Ans: Calcium carbonate (CaCO₃)

When carbon dioxide is passed through limewater, it turns milky due to the formation of calcium carbonate (CaCO₃).

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