Exercise

Author:Dhiren M Doshi

Dhiren M Doshi Science Solutions for Exercise

Simple step-by-step solutions to Exercise questions of Acids, Bases and Salts from Exploring Science BASED ON THE LATEST NCF GUIDELINES 7. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.

Questions from Exercise with Hints & Solutions

EASY
7th CBSE
IMPORTANT
Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 5 - Acids, Bases and Salts>Exercise>Q F

Phenolphthalein is a _____ indicator. (natural/ synthetic)

MEDIUM
7th CBSE
IMPORTANT
Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 5 - Acids, Bases and Salts>Exercise>Q I

Give one use of sulphuric acid.

MEDIUM
7th CBSE
IMPORTANT
Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 5 - Acids, Bases and Salts>Exercise>Q I

Give one use of hydrochloric acid.

MEDIUM
7th CBSE
IMPORTANT
Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 5 - Acids, Bases and Salts>Exercise>Q I

Give one use of nitric acid.

MEDIUM
7th CBSE
IMPORTANT
Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 5 - Acids, Bases and Salts>Exercise>Q J

Differentiate between acids and bases.

MEDIUM
7th CBSE
IMPORTANT
Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 5 - Acids, Bases and Salts>Exercise>Q K

How are acids helpful in maintaining our good health?

MEDIUM
7th CBSE
IMPORTANT
Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 5 - Acids, Bases and Salts>Exercise>Q L

 If you are provided with three colourless solutions: dilute NaOH, water and dilute HCl, then how will you identify water from them without tasting? [Remember: We should not taste chemicals.]

MEDIUM
7th CBSE
IMPORTANT
Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 5 - Acids, Bases and Salts>Exercise>Q L

Rohan observes the following while doing an experiment.

Solution P Q R S
Blue litmus Red Deep Red No change Mauve
Red litmus  No change No change Blue Mauve

(a) Which of these is strongly acidic and basic?
(b) Which two solutions will react to show neutralization reaction?