Jammu and Kashmir Board Solutions for Chapter: Materials : Metals and Non-Metals, Exercise 3: Exercises

Author:Jammu and Kashmir Board

Jammu and Kashmir Board Science Solutions for Exercise - Jammu and Kashmir Board Solutions for Chapter: Materials : Metals and Non-Metals, Exercise 3: Exercises

Attempt the practice questions on Chapter 11: Materials : Metals and Non-Metals, Exercise 3: Exercises with hints and solutions to strengthen your understanding. SCIENCE TEXTBOOK FOR CLASS 8 solutions are prepared by Experienced Embibe Experts.

Questions from Jammu and Kashmir Board Solutions for Chapter: Materials : Metals and Non-Metals, Exercise 3: Exercises with Hints & Solutions

MEDIUM
8th Jammu and Kashmir Board
IMPORTANT

Copper displaces zinc from zinc sulphate solution.

MEDIUM
8th Jammu and Kashmir Board
IMPORTANT

Coal can be drawn into wires.

MEDIUM
8th Jammu and Kashmir Board
IMPORTANT

Give reasons for the following: Immersion rods for heating liquids are made up of metallic substances.

MEDIUM
8th Jammu and Kashmir Board
IMPORTANT

Give reasons for the following: Copper cannot displace zinc from its salt solution.

MEDIUM
8th Jammu and Kashmir Board
IMPORTANT

Give reasons for the following. Sodium and potassium are stored in kerosene.

MEDIUM
8th Jammu and Kashmir Board
IMPORTANT

What happens when iron nails are placed in copper sulphate solution? Write word equations of the reaction involved.

HARD
8th Jammu and Kashmir Board
IMPORTANT

Sarish took a piece of burning charcoal and collected the gas evolved in a test tube.
(a) How will she find the nature of the gas?
(b) Write down word equations of all the reactions taking place in this process.

EASY
8th Jammu and Kashmir Board
IMPORTANT

Why phosphorus is stored in water?