MEDIUM
10th CBSE
IMPORTANT
Earn 100

A student prepared solutions of (i) an acid and (ii) a base in two separate beakers. She forgot to label the solutions and litmus paper is not available in the laboratory, Since both the solutions are colourless, how will she distinguish between the two?

Important Questions on Acids, Bases And Salts

EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 2 - Acids, Bases And Salts>EXERCISE 2A>Q 4
What is a neutralization reaction?
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 2 - Acids, Bases And Salts>EXERCISE 2A>Q 5
Pick out the basic substance from the following:
EASY
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 2 - Acids, Bases And Salts>EXERCISE 2A>Q 6

What is the action of litmus on:

(a) Dry ammonia gas.

(b) Solution of ammonia gas in water.

HARD
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 2 - Acids, Bases And Salts>EXERCISE 2A>Q 1
Which gas is evolved when aluminium powder or zinc granules are heated with conc. sodium hydroxide solution? Write word equations and balanced equations for the reaction of these metals with sodium hydroxide.
HARD
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 2 - Acids, Bases And Salts>EXERCISE 2A>Q 2
A metal compound X reacts with dilute hydrochloric acid to produce effervescence. The gas evolved turns limewater milky. Write two balanced equations for the reactions, if one of the compounds formed is calcium chloride?
MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 2 - Acids, Bases And Salts>EXERCISE 2A>Q 3
How will you test for a gas, which is liberated when hydrochloric acid reacts with active metal?
MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 2 - Acids, Bases And Salts>EXERCISE 2A>Q 4
Name the gas evolved, when dilute HCl reacts with sodium hydrogen carbonate. How is it recognised?
HARD
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 2 - Acids, Bases And Salts>EXERCISE 2A>Q 5
Name the gas evolved when dilute sulphuric acid reacts with sodium carbonate. Write the chemical equation for the reaction involved.