MEDIUM
7th CBSE
IMPORTANT
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Write a balanced chemical equation for the neutralisation reaction between hydrochloric acid and calcium hydroxide.

Important Questions on Acids, Bases and Salts

MEDIUM
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 8 - Acids, Bases and Salts>EVALUATE>Q 3
What is the effect of nitric acid and sodium hydroxide on the red litmus paper indicator?
EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 8 - Acids, Bases and Salts>EVALUATE>Q 3
What is the effect of nitric acid and sodium hydroxide on the turmeric paper indicators?
EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 8 - Acids, Bases and Salts>EVALUATE>Q 3
What is the effect of nitric acid and sodium hydroxide on the china rose extract indicators?
EASY
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 8 - Acids, Bases and Salts>EVALUATE>Q 3
What is the effect of nitric acid and sodium hydroxide on the phenolphthalein indicators?
MEDIUM
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 8 - Acids, Bases and Salts>EVALUATE>Q 4
Why is it wrong to treat a bee sting with vinegar?
MEDIUM
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 8 - Acids, Bases and Salts>EVALUATE>Q 5
Most plants grow the best in neutral conditions. What should be done if the soil becomes basic?
HARD
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 8 - Acids, Bases and Salts>EVALUATE>Q 6
State the uses of sodium hydroxide and calcium hydroxide.
HARD
7th CBSE
IMPORTANT
WOW! SCIENCE Hands-on Learning in SCIENCE 7>Chapter 8 - Acids, Bases and Salts>EVALUATE>Q 1
What will happen if the acidic wastewater from the industries is disposed off into rivers without treating it?