MEDIUM
10th CBSE
IMPORTANT
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A 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.

Important Questions on Acids, Bases And Salts

MEDIUM
10th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 2 - Acids, Bases And Salts>NCERT Section>Q 5
Why do HCl, HNO3, etc. show acidic characters in aqueous solutions while solutions of compounds like alcohol and glucose do not show acidic characters?
EASY
10th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 2 - Acids, Bases And Salts>NCERT Section>Q 6
Why does an aqueous solution of an acid conduct electricity?
HARD
10th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 2 - Acids, Bases And Salts>NCERT Section>Q 7
Why does dry HCl gas not change the colour of dry litmus paper?
HARD
10th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 2 - Acids, Bases And Salts>NCERT Section>Q 8
While diluting an acid, why is it recommended that the acid should be added to water and not water to the acid?
MEDIUM
10th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 2 - Acids, Bases And Salts>NCERT Section>Q 9
How is the concentration of hydronium ions (H3O+) affected when a solution of an acid is diluted?
HARD
10th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 2 - Acids, Bases And Salts>NCERT Section>Q 10
How is the concentration of hydroxide ions OH- affected when excess base is dissolved in a solution of sodium hydroxide?
MEDIUM
10th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 2 - Acids, Bases And Salts>NCERT Section>Q 11
You have two solutions A and B. The pH of solution A is 6 and pH of solution B is 8. Which solution has more hydrogen ion concentration? Which of this is acidic and which one is basic?
MEDIUM
10th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 2 - Acids, Bases And Salts>NCERT Section>Q 12
What effect does the concentration of H+aq ions have on the nature of the solution?