Advertisements
Advertisements
Question
Which compound is used as an antacid in medicine : NaHCO3 or Na2CO3?
Solution
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.
APPEARS IN
RELATED QUESTIONS
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
What will happen if a solution of sodium hydrocarbonate is heated? Give the equation of the reaction involved.
Describe how sodium hydrogencarbonate (baking soda) is produced on a large scale. Write equation of the reaction involved.
What is the common name of sodium hydrogencarbonate?
Name two constituents of baking powder.
Explain the action of baking powder in the making of cake (or bread). Write equation of the reaction involved.
In addition to sodium hydrogencarbonate, baking powders contain a substance X. Name the substance X. What is the role of substance X in the baking powder?
Baking soda is a mixture of:
Salt 'P', commonly used in bakery products, on heating gets converted into another salt 'Q' which itself is used for the removal of hardness of water and a gas 'R' is evolved. The gas 'R', when passed through freshly prepared lime water, turns milky. Identify 'P', 'Q' and 'R', giving a chemical equation for the justification of your answer.
Which one of the following salts does not contain water of crystallisation?
