is also called milk of magnesia.

Important Questions on Acids, Bases and Salts

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 6 - Acids, Bases and Salts>ASSESSMENT ZONE>Q B

Wasp sting is _____ in nature.

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 6 - Acids, Bases and Salts>ASSESSMENT ZONE>Q C

I am an organic acid found in lemon.

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 6 - Acids, Bases and Salts>ASSESSMENT ZONE>Q C

I am a salt used by your mother when she makes cookies and cakes for you.

EASY

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 6 - Acids, Bases and Salts>ASSESSMENT ZONE>Q C

I am a neutral substance you drink every day.

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 6 - Acids, Bases and Salts>ASSESSMENT ZONE>Q C

Doctor recommends me to take this when you overeat and suffer from indigestion. (Antacid / Antibiotic)

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 6 - Acids, Bases and Salts>ASSESSMENT ZONE>Q C

I am present in the sting of an ant. (Acetic acid / Formic acid)

HARD

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 6 - Acids, Bases and Salts>ASSESSMENT ZONE>Q D

Complete the following table:

S.No.	Test Solution	Indicator that can be used	Initial colour of the test solution	Final colour of the test solution
1	Lemon juice	Blue litmus	Colourless	Red
2	Vinegar		Colourless
3	Milk of magnesia	Phenolphthalein	White
4	Soda water			Red
5	Baking soda solution		Colourless	Blue
6	Orange juice	Blue litmus	Orange
7	Soap solution		Colourless	Magenta
8	Shampoo (dilute)	Turmeric solution	Colourless

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 6 - Acids, Bases and Salts>ASSESSMENT ZONE>Q E

Classify the following as mineral acid and natural acid:
Vinegar, sulphuric acid, nitric acid, citric acid and carbonic acid.