EASY
10th Madhya Pradesh Board
IMPORTANT
Earn 100

You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution respectively. If you are given only red litmus paper, how will you identify the contents of each test tube? 

Important Questions on Acids, Bases and Salts

HARD
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 2 - Acids, Bases and Salts>QUESTIONS>Q 1
Why should curd and sour substances not be kept in brass and copper vessels?
MEDIUM
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 2 - Acids, Bases and Salts>QUESTIONS>Q 2

Which gas is usually liberated when an acid reacts with a metal?

Illustrate with an example. How will you test for the presence of this gas?

MEDIUM
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 2 - Acids, Bases and Salts>QUESTIONS>Q 3
Metal compound A reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride.
MEDIUM
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 2 - Acids, Bases and Salts>QUESTIONS>Q 1
Why do HCl, HNO3, etc., show acidic characters in aqueous solutions while solutions of compounds like higher alcohols and glucose do not show acidic character?
HARD
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 2 - Acids, Bases and Salts>QUESTIONS>Q 2
Why does an aqueous solution of acid conduct electricity?
HARD
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 2 - Acids, Bases and Salts>QUESTIONS>Q 3
Why does dry HCl gas not change the colour of the dry litmus paper?
HARD
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 2 - Acids, Bases and Salts>QUESTIONS>Q 4
While diluting an acid, why is it recommended that the acid should be added to water and not water to the acid?
HARD
10th Madhya Pradesh Board
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS X>Chapter 2 - Acids, Bases and Salts>QUESTIONS>Q 5
How is the concentration of hydronium ions H3O+ affected when a solution of an acid is diluted?