EASY
7th CBSE
IMPORTANT
Earn 100

Give reason for the following:

Hydrofluoric acid is stored in teflon bottle and not in a bottle made from glass.

Important Questions on Acids, Bases and Salts

MEDIUM
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q III

Give reason for the following:

Both-soda and acid are used in fire extinguishers.

MEDIUM
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q III

Give reason for the following:

For applying dilute solution of baking soda on a bee's sting.

EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q IV
Name of the organic acid found in citrus fruits.
EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q IV
Name of the organic acid found in tomatoes.
EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q IV
Name of the organic acid found in tamarind. (Ascorbic acid/ Tartaric acid)
EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q IV
Name of the organic acid found in soured curd.
EASY
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q IV

Name of the organic acid found in Emblica (Awla or amla) fruit.

HARD
7th CBSE
IMPORTANT
S. Chand's SCIENCE For Class VII>Chapter 5 - Acids, Bases and Salts>EXERCISES>Q V
Limestone is calcium carbonate. What happens when it is heated?