K K Gupta and Stalin Malhotra Solutions for Chapter: Physical and Chemical Changes, Exercise 1: Quiz time

Author:K K Gupta & Stalin Malhotra

K K Gupta Science Solutions for Exercise - K K Gupta and Stalin Malhotra Solutions for Chapter: Physical and Chemical Changes, Exercise 1: Quiz time

Attempt the free practice questions on Chapter 6: Physical and Chemical Changes, Exercise 1: Quiz time with hints and solutions to strengthen your understanding. Frank Everyday Science solutions are prepared by Experienced Embibe Experts.

Questions from K K Gupta and Stalin Malhotra Solutions for Chapter: Physical and Chemical Changes, Exercise 1: Quiz time with Hints & Solutions

EASY
7th CBSE
IMPORTANT

Chemical changes are usually permanent.

EASY
7th CBSE
IMPORTANT

The composition of the matter remains unaltered in a chemical change.

MEDIUM
7th CBSE
IMPORTANT

Cutting of wood into pieces is a chemical change.

MEDIUM
7th CBSE
IMPORTANT

Eating away of iron metal due to rusting is called _____.

HARD
7th CBSE
IMPORTANT

Answer in one word:

Coating a thin layer of zinc on iron sheets and pipes is called _____. (Greasing / Galvanisation)

HARD
7th CBSE
IMPORTANT

Giving a thin coating of tin on utensils _____. (Tinning/ Painting/ rusting)

HARD
7th CBSE
IMPORTANT

Coating of metal on the surface of another metal by using electric current is called  _____.

MEDIUM
7th CBSE
IMPORTANT

Name the process:

Making of alloys by mixing of two or more metals homogeneously.