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Class X

Class X - English
First Flight (22 Chapters)|
Words and Expressions - II (9 Chapters)|
Foot Prints Without feet (9 Chapters)
Class X - Health and Physical Education
Health and Physical Education (13 Chapters)
Class X - Hindi
Kshitij - II (13 Chapters)|
Sparsh (14 Chapters)|
Sanchayan - II (3 Chapters)|
Kritika (3 Chapters)
Class X - Mathematics
Mathematics (14 Chapters)
Class X - Sanskrit
Vyakaranavithi (14 Chapters)|
Shemushi - II (12 Chapters)|
Abhyaswaan Bhav - II (14 Chapters)
Class X - Science
Science (13 Chapters)
Class X - Social Science
Understanding Economic Development (5 Chapters)|
Contemporary India (7 Chapters)|
India and the Contemporary World - II (5 Chapters)|
Democratic Politics (5 Chapters)
Class X - Urdu
Nawa-e-urdu (11 Chapters)
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Class X
Science
Science
Chemical Reactions and Equatio...
Question Bank

What is a chemical reaction an...

Single Answer MCQ
Q-00001778

What is a chemical reaction and how do we know when it has taken place?

1

Change in color and temperature

2

Change in state only

3

Change in color, temperature, formation of gas, or precipitate

4

No visible changes

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Chapters related to "Class X"

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Explore the properties, reactions, and uses of acids, bases, and salts in everyday life and their importance in chemistry.

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Explore the versatile world of carbon, its allotropes, and the vast array of compounds it forms, including hydrocarbons and their derivatives, in this comprehensive chapter.

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Chemical Reactions and Equations Summary, Important Questions & Solutions | All Subjects

Question Bank

Question Bank

Worksheet

Worksheet

Revision Guide

Revision Guide

Flash Cards

Flash Cards

Formula Sheet

Formula Sheet