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Out of Na2CO3...

Question

Out of Na₂CO₃and NaHCO₃ which acts as an antacid?

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Solution

Antacid:-
The substances which neutralize the excessive acid produced by the stomach without any side effects are called antacids.
Out of Na₂CO₃and NaHCO₃,Sodium bicarbonate(NaHCO3) can be used as an antacid because:-
Na₂CO₃ is more alkaline than NaHCO₃ and can burn the throat if swallowed.
While NaHCO₃ being mildly basic does not harm.
Therefore, only NaHCO₃ should be used as an antacid.

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Q. Consider the following substances:
NaCl, Ca(OH)₂, NaHCO₃, NH₃, Na₂CO₃, H₂O, Cl₂, CO₂, CaSO₄.2H₂O, 2CaSO₄.H₂O, CaOCl₂
(a) Which two substance combine to form bleaching powder?
(b) Which four substances are utilised in the production of washing soda?
(c) Which compound represents plaster of Paris?
(d) Which compound is a part of baking powder?
(e) Which compound is used as an antacid?

Q. Which compound is used as an antacid in medicine:

N a H C O_{3}

N a_{2} C O_{3}

Q. The pair of compound which can't exist together in solution a) NaHCO3, NaOH b) NaHCO3, NaCl c) Na2CO3, NaCl d) NaHCO3, Na2CO3

Why is NaHCO₃ is an essential ingredient in antacids?

N a H C O_{3} + N a_{2} C O_{3}

20 m l

H C l

using phenolphthalein as indicator and

35 m l

more required if methyl orange is used as indicator. Then molar ratio of

N a H C O_{3}

N a_{2} C O_{3}

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