HARD
7th CBSE
IMPORTANT
Earn 100

Sodium oxide on dissolution in water gives "X" and sulphur trioxide on dissolution in water gives "Y". Identify the nature of products if one molecule of "X" reacts with one molecule of "Y" and two molecules of "X" react with one molecule of "Y". Write all the required balanced chemical equations.

Important Questions on Acids, Bases and Salts

MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 3 - Acids, Bases and Salts>PRACTICE QUESTIONS (CLASSROOM WING)>Q 88
Describe the methods of preparation of acids and bases with the help of examples.
HARD
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 3 - Acids, Bases and Salts>PRACTICE QUESTIONS (CLASSROOM WING)>Q 89

Give equations for the dissolution of the following compounds in their solutions and write the formulae of the salts formed from them.

(a) H2SO4    (b) Mg(OH)2

HARD
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 3 - Acids, Bases and Salts>PRACTICE QUESTIONS (CLASSROOM WING)>Q 90
Explain the naming of salts with examples.
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 3 - Acids, Bases and Salts>PRACTICE QUESTIONS (CLASSROOM WING)>Q 91
By using the moist blue litmus paper, classify the given compounds given below as acids and bases:Ca(OH)2, H 2SO4, CH3COOH, NaOH , KOH , Mg(OH)2, HNO3 , NH4OH
EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 3 - Acids, Bases and Salts>PRACTICE QUESTIONS (CLASSROOM WING)>Q 91
Mention the acidic or basic or neutral nature of solutions by using litmus.
EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 3 - Acids, Bases and Salts>PRACTICE QUESTIONS (CLASSROOM WING)>Q 91
Mention the acidic or basic or neutral nature of solutions by using methyl orange.
MEDIUM
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 3 - Acids, Bases and Salts>PRACTICE QUESTIONS (CLASSROOM WING)>Q 91
Mention the acidic or basic or neutral nature of solutions by using the phenolphthalein indicator.
EASY
7th CBSE
IMPORTANT
Pearson IIT Foundation Chemistry>Chapter 3 - Acids, Bases and Salts>PRACTICE QUESTIONS (CLASSROOM WING)>Q 92

Mention the uses of the following base and mention the property exploited in those uses.

Sodium hydroxide