EASY
7th CBSE
IMPORTANT
Earn 100

The colour of phenolphthalein is pink in acidic solutions while colourless in basic solutions.

50% studentsanswered this correctly

Important Questions on Acids, Bases And Salts

EASY
7th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 1 - Acids, Bases And Salts>EXERCISE>Q 11
Sodium bicarbonate is used in preparing bakery products.
EASY
7th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 1 - Acids, Bases And Salts>EXERCISE>Q 12
The acids which dissociate completely in water to furnish a large amount of hydrogen ions are called strong acids.
EASY
7th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 1 - Acids, Bases And Salts>EXERCISE>Q 13
Acidity is caused by excessive secretion of acetic acid in stomach.
EASY
7th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 1 - Acids, Bases And Salts>EXERCISE>Q 14
Ammonium hydroxide is a base present in window cleaners.
EASY
7th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 1 - Acids, Bases And Salts>EXERCISE>Q 15
Common salt is used in preservation of pickles.
MEDIUM
7th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 1 - Acids, Bases And Salts>EXERCISE>Q 1

In this section, each question has two matching lists. Choices for the correct combination of elements from List-I and List-II are given as options (a), (b), (c) and (d) out of which one is correct.

List-I List-II
(P) Quick lime 1. Sodium hydroxide
(Q) Caustic soda 2. Magnesium hydroxide
(R) Washing soda 3. Calcium oxide
(S) Milk of magnesia 4. Sodium carbonate
MEDIUM
7th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 1 - Acids, Bases And Salts>EXERCISE>Q 2

In this section, each question has two matching lists. Choices for the correct combination of elements from List-I and List-II are given as options (a), (b), (c) and (d) out of which one is correct.

List-I List-II
(P) Citric acid 1. Tamarind
(Q) Lactic acid 2. Spinach
(R) Oxalic acid 3. Orange
(S) Tartaric acid 4. Sour milk
MEDIUM
7th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 1 - Acids, Bases And Salts>EXERCISE>Q 3

In this section, each question has two matching lists. Choices for the correct combination of elements from List-I and List-II are given as options (a), (b), (c) and (d) out of which one is correct.

List-I List-II
(P) Sulphuric acid 1. Weak acid
(Q) Sodium hydroxide 2. Strong acid
(R) Ammonium hydroxide 3. Strong base
(S) Acetic acid 4. Weak base