HARD
10th CBSE
IMPORTANT
Earn 100

Five solutions A, B, C, D and E showed pH as 4, 7, 1, 11 and 9 respectively when tested by universal indicator. Which solution is
(i) Neutral (ii) Strongly acidic (iii) Strongly alkaline (iv) Weakly alkaline (v) Weakly acidic. Arrange the pH in increasing order of H+ ion concentration.

Important Questions on Acids, Bases and Salts

HARD
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 2 - Acids, Bases and Salts>Test Your Knowledge>Q 40
pH has a great importance in our daily life. Explain by giving three examples.
HARD
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 2 - Acids, Bases and Salts>Test Your Knowledge>Q 41
Dry pellets of base 'X' when kept in open absorb moisture and turn sticky. The compound is also formed by chlor-alkali process. Write chemical name and formula of X. Describe chlor-alkali process with a balanced chemical equation. Name the type of reaction that occurs when X is treated with dilute hydrochloric acid. Write the chemical equation. While diluting an acid, why is it recommended that the acid should be added to water and not water to the acid?
MEDIUM
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 2 - Acids, Bases and Salts>Test Your Knowledge>Q 42
What will you observe when red litmus paper is introduced into a solution of sodium carbonate?
MEDIUM
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 2 - Acids, Bases and Salts>Test Your Knowledge>Q 42
What will you observe when methyl orange drop is added to dilute hydrochloric acid?
EASY
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 2 - Acids, Bases and Salts>Test Your Knowledge>Q 42
What will you observe when a drop of phenolphthalein is added to the solution of lime water.
MEDIUM
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 2 - Acids, Bases and Salts>Test Your Knowledge>Q 42
What will you observe when blue litmus is introduced into a solution of ferric chloride.
HARD
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 2 - Acids, Bases and Salts>Test Your Knowledge>Q 43
What is bleaching powder? How is bleaching powder prepared? Write chemical equation of the reaction involved in the preparation of bleaching powder.
HARD
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 2 - Acids, Bases and Salts>Test Your Knowledge>Q 43
What happens when bleaching powder reacts with dilute sulphuric acid? Give equation of the reaction involved.