EASY
7th CBSE
IMPORTANT
Earn 100

Acids produce hydrogen ions when dissolved in water.

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Important Questions on Acids and Bases

MEDIUM
7th CBSE
IMPORTANT
New Science Spark Book 7>Chapter 6 - Acids and Bases>Put on your THINKING CAP!>Q 3

Arrange the given substances under the suitable group.

Soda water, glass cleaner, grapes, baking powder, yogurt, magnesium sulphate, vinegar, lemon juice, sodium chloride, lime water, calamine 

Acid Base

 

 

 

  

 

EASY
7th CBSE
IMPORTANT
New Science Spark Book 7>Chapter 6 - Acids and Bases>Put on your THINKING CAP!>Q 4
Distilled water is a _____ solution.
MEDIUM
7th CBSE
IMPORTANT
New Science Spark Book 7>Chapter 6 - Acids and Bases>Put on your THINKING CAP!>Q 4
Phenolphthalein turns _____ in colour in a base.
EASY
7th CBSE
IMPORTANT
New Science Spark Book 7>Chapter 6 - Acids and Bases>Put on your THINKING CAP!>Q 4
Lemon juice contains _____ acid.
EASY
7th CBSE
IMPORTANT
New Science Spark Book 7>Chapter 6 - Acids and Bases>Put on your THINKING CAP!>Q 4
_____ is an indicator extracted from lichens.
EASY
7th CBSE
IMPORTANT
New Science Spark Book 7>Chapter 6 - Acids and Bases>Put on your THINKING CAP!>Q 4
An ant bite can be treated by applying a _____ solution. (Washing soda / Baking soda)
EASY
7th CBSE
IMPORTANT
New Science Spark Book 7>Chapter 6 - Acids and Bases>Put on your THINKING CAP!>Q 5
Name the acid present in curd.
EASY
7th CBSE
IMPORTANT
New Science Spark Book 7>Chapter 6 - Acids and Bases>Put on your THINKING CAP!>Q 5
Name the acid present in lemon juice. (Lactic acid/ Malic acid/ Citric acid)