MEDIUM
10th ICSE
IMPORTANT
Earn 100

Write balanced chemical equations for the following word equation:

Calcium carbonate + Hydrochloric acid →Calcium chloride + Carbon dioxide +Water 

Important Questions on Acids, Bases and Salts

MEDIUM
10th ICSE
IMPORTANT

Write balanced chemical equations for the following word equation:

Sodium hydrogen carbonate + Hydrochloric acid →Sodium chloride +Carbon dioxide + Water 

HARD
10th ICSE
IMPORTANT
When zinc metal is treated with a dilute solution of a strong acid, a gas is evolved which is used as rocket fuel. Name the gas evolved. Write the chemical equation of the reaction involved and also write a test to detect the gas formed. 
MEDIUM
10th ICSE
IMPORTANT
Why does HClgas turn 'wet' blue litmus paper to red whereas there is no change in the colour of 'dry' litmus paper?
HARD
10th ICSE
IMPORTANT
Why is HClis a stronger acid than acetic acid. Explain.
MEDIUM
10th ICSE
IMPORTANT
Solution of sulphuric acid conducts electricity whereas alcohol does not. Give reason.
MEDIUM
10th ICSE
IMPORTANT
Why all hydrogen-containing compounds such as alcohols and glucose are not acids?
HARD
10th ICSE
IMPORTANT
State what does pH of a solution signify? Three solutions A, B and C have pH values of 6,5 and 10 respectively. Which of the solutions is highly acidic? Which solution will turn red litmus blue? 
MEDIUM
10th ICSE
IMPORTANT
Why is an aqueous solution of sodium chloride neutral but an aqueous solution of sodium carbonate basic?