HARD
10th CBSE
IMPORTANT
Earn 100

Which of the following statements is correct about an aqueous solution of an acid and of a base? 

(i) Higher the pH, stronger the acid.

(ii) Higher the pH, weaker the acid.
(iii) Lower the pH, stronger the base.
(iv) Lower the pH, weaker the base.

11.11% studentsanswered this correctly

Important Questions on Acids, Bases and Salts

EASY
10th CBSE
IMPORTANT
Which of the following is not a mineral acid?
MEDIUM
10th CBSE
IMPORTANT
During the preparation of hydrogen chloride gas on a humid day, the gas is usually passed through the guard tube containing calcium chloride. The role of calcium chloride taken in the guard tube is to:
EASY
10th CBSE
IMPORTANT
When  HCl aq  is exactly neutralised by NaOH aq, the hydrogen ion concentration in the resulting mixture is
HARD
10th CBSE
IMPORTANT

Identify the compound X on the basis of the reactions given below. Also, write the name and chemical formulae of A, B and C.

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HARD
10th CBSE
IMPORTANT
A gas X reacts with lime water and forms a compound Y which is used as a bleaching agent in chemical industry. Identify X and Y. Give the chemical equation of the reaction involved.
HARD
10th CBSE
IMPORTANT
Identify the acid and base which form sodium hydrogen carbonate. Write chemical equation in support of your answer. State whether this compound is acidic, basic or neutral. Also write its pH value.