Which of the following is acidic in nature? 

Important Questions on Acids, Bases And Salts

MEDIUM

10th CBSE

IMPORTANT

Foundation Course Chemistry>Chapter 2 - FOOTSTEPS towards CBSE>SECTION-C>Q 30

A metal compound $\mathrm{A}$ 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.

EASY

10th CBSE

IMPORTANT

Foundation Course Chemistry>Chapter 2 - Acids, Bases And Salts>NCERT Section>Q 1

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? 

EASY

10th CBSE

IMPORTANT

Foundation Course Chemistry>Chapter 2 - Acids, Bases And Salts>NCERT Section>Q 2

Why sould curd and sour substances not be kept in brass and copper vessels?

MEDIUM

10th CBSE

IMPORTANT

Foundation Course Chemistry>Chapter 2 - Acids, Bases And Salts>NCERT Section>Q 3

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 CBSE

IMPORTANT

Foundation Course Chemistry>Chapter 2 - Acids, Bases And Salts>NCERT Section>Q 5

Why do $\mathrm{HCl}, {\mathrm{HNO}}_3,$ 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 $\mathrm{H}\mathrm{C}\mathrm{l}$ 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?