MEDIUM
10th CBSE
IMPORTANT
Earn 100

Why does bee sting cause pain and irritation? Rubbing of baking soda on the sting area gives relief. How?

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 27
A substance X used as an antacid reacts with hydrochloric acid to produce a gas Y which is used in fire extinguishers.
(a) Name the substances X and Y.
(b) Write a balanced equation of the reaction between X and hydrochloric acid.
MEDIUM
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 2 - Acids, Bases and Salts>Test Your Knowledge>Q 28
The blue colour of crystals of a substance changed to white on heating in a closed test tube but the colour was regained after sometime on cooling. Name the substance and write its chemical formula. Explain the phenomenon involved.
MEDIUM
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 2 - Acids, Bases and Salts>Test Your Knowledge>Q 29
While diluting a mineral acid why is it recommended to add acid slowly to water and not water to acid. Explain.
MEDIUM
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 2 - Acids, Bases and Salts>Test Your Knowledge>Q 30
What happens when an acid reacts with metal hydrogen carbonate? Write chemical equation.
HARD
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 2 - Acids, Bases and Salts>Test Your Knowledge>Q 31
Why should we not keep curd and food materials in containers made up of brass?
MEDIUM
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 2 - Acids, Bases and Salts>Test Your Knowledge>Q 32
Both ethyl alcohol C2H5OH and glucose C6H12O6 contain hydrogen but do not give the characteristics tests of acids. Assign reason.
MEDIUM
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 2 - Acids, Bases and Salts>Test Your Knowledge>Q 33
If someone is suffering from acidity in stomach, which of the following would you suggest as a remedy. Orange juice, coca-cola, baking soda solution?
MEDIUM
10th CBSE
IMPORTANT
SUPER SIMPLIFIED SCIENCE CHEMISTRY CLASS X>Chapter 2 - Acids, Bases and Salts>Test Your Knowledge>Q 34
Why should Plaster of Paris be stored in moisture proof containers?