Chhattisgarh Board Solutions for Chapter: Metals and Non-Metals, Exercise 5: QUESTIONS FOR PRACTICE

Author:Chhattisgarh Board

Chhattisgarh Board Science & Technology Solutions for Exercise - Chhattisgarh Board Solutions for Chapter: Metals and Non-Metals, Exercise 5: QUESTIONS FOR PRACTICE

Attempt the practice questions on Chapter 5: Metals and Non-Metals, Exercise 5: QUESTIONS FOR PRACTICE with hints and solutions to strengthen your understanding. Science & Technology Class - VIII solutions are prepared by Experienced Embibe Experts.

Questions from Chhattisgarh Board Solutions for Chapter: Metals and Non-Metals, Exercise 5: QUESTIONS FOR PRACTICE with Hints & Solutions

HARD
8th Chhattisgarh Board
IMPORTANT

What do you understand by reactivity series?

HARD
8th Chhattisgarh Board
IMPORTANT

How much carat is pure gold? Why is pure gold not used for making ornaments?

HARD
8th Chhattisgarh Board
IMPORTANT

What are alloys? Give names of any four alloys and write their constituents and uses.

HARD
8th Chhattisgarh Board
IMPORTANT

What is metal corrosion? What are the ways to protect corrosion?

MEDIUM
8th Chhattisgarh Board
IMPORTANT

Why is graphite used as an electrode?

MEDIUM
8th Chhattisgarh Board
IMPORTANT

Iron is not used in making of railway tracks? Why?

HARD
8th Chhattisgarh Board
IMPORTANT

Explain through an activity that magnesium is more reactive than Iron?

HARD
8th Chhattisgarh Board
IMPORTANT

Rub any copper vessel with sandpaper and observe. Now explain with giving reasons.