Exercise

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Embibe Experts Science Solutions for Exercise

Simple step-by-step solutions to Exercise questions of Chemical Reactions and Equations from Science Crash Course (Based on Revised Syllabus - 2023). Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.

Questions from Exercise with Hints & Solutions

MEDIUM
10th Gujarat Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus - 2023)>Chapter 1 - Chemical Reactions and Equations>Exercise>Q 5

When dilute sulphuric acid is added to granulated zinc placed in a test-tube, the observation made is:

MEDIUM
10th Gujarat Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus - 2023)>Chapter 1 - Chemical Reactions and Equations>Exercise>Q 10

During chemical reaction which of the following is not obeyed:

MEDIUM
10th Gujarat Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus - 2023)>Chapter 1 - Chemical Reactions and Equations>Exercise>Q 13

Which of the following statements is correct?

HARD
10th Gujarat Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus - 2023)>Chapter 1 - Chemical Reactions and Equations>Exercise>Q 25

Which of the following involves reduction of chlorine?

EASY
10th Gujarat Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus - 2023)>Chapter 1 - Chemical Reactions and Equations>Exercise>Q 32

The gas released during respiration is CO2.

EASY
10th Gujarat Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus - 2023)>Chapter 1 - Chemical Reactions and Equations>Exercise>Q 33

A downward arrow with product formed in the reaction suggests the insoluble nature of product.

MEDIUM
10th Gujarat Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus - 2023)>Chapter 1 - Chemical Reactions and Equations>Exercise>Q 34

Mixing of aqueous solution of NaI and AgNO3 gives green precipitate.

MEDIUM
10th Gujarat Board
IMPORTANT
Science Crash Course (Based on Revised Syllabus - 2023)>Chapter 1 - Chemical Reactions and Equations>Exercise>Q 40

Which of the following is/are a decomposition reaction-