Advertisements
Advertisements
Question
Explain why, sodium hydrogencarbonate is used as an antacid.
Solution
Sodium hydrogen carbonate is used as an antacid because it is alkaline and it neutralises excess acid present in the stomach and relieves indigestion.
APPEARS IN
RELATED QUESTIONS
A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains ______.
Write a word equation and then a balanced equation for the reaction taking place when:
Dilute hydrochloric acid reacts with magnesium ribbon.
Compounds such as alcohol and glucose also contain hydrogen but are not categorised as acids. Describe an activity to prove it.
Write the chemical formula of sodium carbonate decahydrate.
What happens when a solution of sodium hydrogencarbonate is heated? Write equation of the reaction involved.
If you take some distilled water in a test-tube, add an equal amount of acetic acid to it, shake the test-tube well and leave it undisturbed on the test-tube stand, then after about 5 minutes what would you observe?
(A) There is a layer of water over the layer of acetic acid.
(B) A precipitate is setting at the bottom of the test-tube.
(C) Bubbles of colourless gas are coming out of the test-tube.
(D) There is a clear, colourless transparent solutions in the test-tube.
When _______________ is passed through fresh lime water, it turns milky.
Lime water reacts with chlorine to form:
Two salts 'X' and 'Y' are dissolved in water separately. When phenolphthalein is added to these two solutions, the solution 'X' turns pink and the solution 'Y' does not show any change in colour, therefore 'X' and 'Y' are:
A substance 'X' is used as a building material and is insoluble in water. When it reacts with dil. HCl, it produces a gas which turns lime water milky.
- Write the chemical name and formula of 'X'.
- Write chemical equations for the chemical reactions involved in the above statements.