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प्रश्न
Which compound is used as an antacid in medicine : NaHCO3 or Na2CO3?
उत्तर
NaHCO3.
Sodium hydrogen carbonate (baking soda) is used as an antacid, to remove acidity in the stomach. As baking soda is alkaline, it reacts with excess acid and neutralises the acid.
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संबंधित प्रश्न
Write two applications of sodium bicarbonate (baking soda).
A student takes about 2 mL ethanoic acid in a dry test tube and adds a pinch of sodium hydrogen carbonate to it. He reports the following observations:
I. Immediately a colourless and odourless gas evolves with a brisk effervescence.
II. The gas turns lime water milky when passed through it.
III. The gas burns with an explosion when a burning splinter is brought near it.
IV. The gas extinguishes the burning splinter that is brought near it.
The correct observations are
(A) I, II and III
(B) II, III and IV
(C) III, IV and I
(D) I, II and IV
Complete and balance the following chemical equations:
`NaHCO_3` 
Describe how sodium hydrogencarbonate (baking soda) is produced on a large scale. Write equation of the reaction involved.
What happens when a cold and concentrated solution of sodium chloride reacts with ammonia and carbon dioxide? Write the chemical equation of the reaction which takes place.
What is the common name of sodium hydrogencarbonate?
Name two constituents of baking powder.
(i) Name the products formed when sodium hydrogen carbonate is heated.
(ii) Write the chemical equation for the reaction involved in the above.
Which one of the following salts does not contain water of crystallisation?
For making cake, baking powder is taken. If at home your mother uses baking soda instead of baking powder in cake,
- how will it affect the taste of the cake and why?
- how can baking soda be converted into baking powder?
- what is the role of tartaric acid added to baking soda?
