Assertion :Magnesium hydroxide is a better antacid than sodium hydrogencarbonate. Reason: Magnesium hydroxide being insoluble, it does not allow pH to increase above neutral, whereas hydrogen carbonate being soluble, its excess can make the stomach alkaline and trigger the production of even more acid.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Sodium hydrogen carbonate or sodium bicarbonate may cause an imbalance of the body's normal pH level leading to systemic alkalosis.

Whereas, magnesium hydroxide (also known as milk of magnesia) being insoluble, is not absorbed by the intestine and thus does not allow the pH to increase above neutral.

Thus magnesium hydroxide is better antacid than magnesium hydrogen carbonate.

Option A is correct.

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