HARD
10th CBSE
IMPORTANT
Earn 100
The discomfort caused by indigestion due to overeating can be cured by taking.
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Important Questions on Acids, Bases And Salts
MEDIUM
10th CBSE
IMPORTANT
The property which is common between vinegar and curd is that they:
EASY
10th CBSE
IMPORTANT
The indicator which produces a pink colour in an alkaline solution is
EASY
10th CBSE
IMPORTANT
A solution reacts with zinc granules to give a gas which burns with a ‘pop’ sound. The solution contains.
MEDIUM
10th CBSE
IMPORTANT
When a piece of limestone reacts with dilute , a gas is produced. When gas is passed through lime water, then a white precipitate is formed. On passing excess of gas , the white precipitate dissolves forming a soluble compound . What are and Z?
HARD
10th CBSE
IMPORTANT
When a piece of limestone reacts with dilute , a gas X is produced. When gas X is passed through lime water, then a white precipitate Y is formed. On passing excess of gas X, the white precipitate dissolves forming a soluble compound Z.
(b) Write equations for the reactions which take place:
(i) when limestone reacts with dilute
(ii) when gas X reacts with lime water to form white precipitate Y
(iii) when an excess of gas X dissolves white precipitate Y to form a soluble compound Z
EASY
10th CBSE
IMPORTANT
If someone is suffering from the problem of acidity after overeating, which of the following would you suggest as a remedy?
Lemon juice, Vinegar, baking soda solution Give a reason for your choice.
EASY
10th CBSE
IMPORTANT
On adding dilute hydrochloric acid to copper oxide powder, the solution formed is blue-green.
Predict the new compound formed which imparts a blue-green colour to a solution. (Copper (II) chloride / Copper sulphate / Copper(I) chloride)
MEDIUM
10th CBSE
IMPORTANT
On adding dilute hydrochloric acid to copper oxide powder, the solution formed is blue-green. Write a balanced chemical equation of the reaction which takes place.
