Question

Which is used for stomach pain?
A. NaHCO3 B. Na2CO3 C. Both A & B D. None of these​

Answer 1

Answer:

Acidity of stomach has to be neutralized by a base, without affecting or damaging the cells of the body.

Ca(OH)

2

is highly caustic while Mg(OH)

2

is not, because it has very low solubility in water. Similarly, NaHCO

3

is a weak base.

Thus, NaHCO

3

and Mg(OH)

2

are used as an antacid (against gastric acids like HCl).

NaHCO

3

+HCl→NaCl+H

2

O+CO

2

↑

Mg(OH)

2

+2HCl→MgCl

2

+2H

2

O

I hope this helps you.

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