HARD
10th Madhya Pradesh Board
IMPORTANT
Earn 100

What is the common name of the compound CaOCl2?

Important Questions on Acids, Bases and Salts

EASY
10th Madhya Pradesh Board
IMPORTANT
You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution respectively. If you are given only red litmus paper, how will you identify the contents of each test tube? 
HARD
10th Madhya Pradesh Board
IMPORTANT
Why should curd and sour substances not be kept in brass and copper vessels?
MEDIUM
10th Madhya Pradesh Board
IMPORTANT

Which gas is usually liberated when an acid reacts with a metal?

Illustrate with an example. How will you test for the presence of this gas?

MEDIUM
10th Madhya Pradesh Board
IMPORTANT
Metal compound A reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride.
EASY
10th Madhya Pradesh Board
IMPORTANT
A solution turns red litmus blue, its pH is likely to be:
MEDIUM
10th Madhya Pradesh Board
IMPORTANT
A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains:
HARD
10th Madhya Pradesh Board
IMPORTANT
Five solutions A, B, C, D, and E, when tested with universal indicator, showed pH as 4, 1, 11, 7 and 9, respectively. Which solution is
(i) Neutral?
(ii) Strongly alkaline?
(iii) Strongly acidic?
(iv) Weakly acidic?
(v) Weakly alkaline?
Arrange the pH in increasing order of hydrogen-ion concentration.
EASY
10th Madhya Pradesh Board
IMPORTANT
What is a neutralization reaction? Give two examples.