PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>Formative Assessment>Q 6

MEDIUM

10th CBSE

IMPORTANT

Earn 100

What is the nature of the new product which is formed by the action of water on quick lime?

60% studentsanswered this correctly

Important Questions on Chemical Reactions and Equations

EASY

10th CBSE

IMPORTANT

PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>Formative Assessment>Q 7

CaO

and

{CO}_{2}

are produced by heating

{CaCO}_{3}

. What is the type of the reaction and the process?

MEDIUM

10th CBSE

IMPORTANT

PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>Formative Assessment>Q 8

When ferrous sulphate is heated the following reaction takes place:

$2 {FeSO}_{4} (s) \to {Fe}_{2} O_{3} (s) + {SO}_{2} (g) + {SO}_{3} (g)$

The above reaction is called _____of ferrous sulphate.

MEDIUM

10th CBSE

IMPORTANT

PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>Formative Assessment>Q 9

How the colour changes when the gases after thermal decomposition of ferrous sulphate come in contact with an acidified solution of potassium dichromate?

EASY

10th CBSE

IMPORTANT

PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>Formative Assessment>Q 10

What is the colour of solid ferrous sulphate?

HARD

10th CBSE

IMPORTANT

PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>Formative Assessment>Q 1

With a labelled diagram, describe an activity to find out the conditions under which iron rusts.

MEDIUM

10th CBSE

IMPORTANT

PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>Formative Assessment>Q 2

Solid sodium carbonate was taken in a container and water was added slowly to it. What will you observe in this reaction? Write the name and chemical formula of the product.

MEDIUM

10th CBSE

IMPORTANT

PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>Formative Assessment>Q 3

Write activity to show the change in the state of matter and change in temperature during a chemical reaction (change).

MEDIUM

10th CBSE

IMPORTANT

PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>Formative Assessment>Q 4

Write activity to show the electrolysis of water, as an example of decomposition reaction.