Acids, Bases and Salts Sample Questions for Class 7
Question 1
Which of the following is not an alkali?
A. Sodium hydroxide
B. Silver hydoxide
C. Ammonium hydroxide
D. Magnesium hydroxide
Question 2
Arrange following acids from least reactive to most reactive.
A)Hydrochloric acid
B) Nitric acid
C) Acetic acid
D)Sulphuric acid
A. CBAD
B. CABD
C. CBDA
D. CDBA
Question 3
Which of the following is mineral acid?
A. Tartaric acid
B. Nitric acid
C. Amino acid
D. Acetic acid
Question 4
Which of the following statement is incorrect about acid?
A. Acid is sour in taste
B. Acid turns blue litmus paper red
C. Water should be added to acid with constant stir
D. Dilution of acid is highly exothermic
Question 5
Where do you find malic acid?
A. Grapes
B. Raw mangoes
C. Pineapples
D. Apples