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Between sodiumhydrogen carbonate and m...

Between sodiumhydrogen carbonate and magnesium hydroxide , which is a better antacid and why ?

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Magnesium hydroxide `[Mg(OH)_(2)]` is a batter antacid because being insoluble it does not allow the pH to increase neturaility. On the other han, sodium hydrogen carbonate being soluable and its excess amount can make the stomach alkaline and trigger the production of even more acid.
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Magnesium Hydroxide is also known as :-

(i) Why is bithional added in soap ? (ii) Why is magnesium hydroxide a better antacid than sodium bicarbonate ? (iii) Why are soaps biodegradable whereas detergents are non - biodergradable ?

Assertion : Metal hydroxides are better antacids than hydrogencarbonates . Reason : Being insoluble metal hydroxides do not increase the pH above neutrality .

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