The diagram shows the preparation of carbon dioxide gas.

What change do you think to happen when carbon dioxide formed is passed into limewater?

Important Questions on Question Bank

MEDIUM

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 2

How is sodium chloride obtained from sea-water? State two uses of sodium chloride.

MEDIUM

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 3

A white amorphous powder emits a greenish-yellow gas having the intense smell of chlorine. It is used to remove yellowness of white clothes in laundries.
(i) Identify the powder.
(ii) How is the powder prepared?
(iii) Write the equation for the reaction in its preparation.

HARD

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 4

You are supplied with the following materials:

Wash bottle, test tube, cork, rubber tube, thread, saturated solution of ${NaHCO}_{3}$ and dilute $H_{2} {SO}_{4}$ _.

Use these materials to set up an apparatus for making a soda-acid fire extinguisher.

MEDIUM

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 5

A baker found that the cake he had prepared was hard and small in size. What ingredient had he forgotten to add that would have made the cake fluffy? Explain with reasons.

MEDIUM

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 6

What is baking soda? How is it prepared from sodium chloride? How does it differ from baking powder?

MEDIUM

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 7

Give the principles involved in the manufacture of caustic soda by Chlor-alkali process. Write chemical equations for the reactions that occur during the process. What are the by-products of this process?

EASY

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 8

Name the chemical substance used in hospitals for setting fractured bones.

EASY

10th CBSE

IMPORTANT

Foundation Science Chemistry FOR CLASS 10>Chapter 10 - Question Bank>Question Bank>Q 8

How will you prepare slaked lime?