What are alkalis? Give two examples.

Important Questions on Acids, Bases, and Salts

MEDIUM

7th CBSE

IMPORTANT

Science Horizons>Chapter 5 - Acids, Bases, and Salts>Exercises>Q E

Explain the following:
Magnesium hydroxide is used as antacid.

EASY

7th CBSE

IMPORTANT

Science Horizons>Chapter 5 - Acids, Bases, and Salts>Exercises>Q E

Explain the following:
Strong bases should be handled carefully.

MEDIUM

7th CBSE

IMPORTANT

Science Horizons>Chapter 5 - Acids, Bases, and Salts>Exercises>Q E

Explain the following:
Calamine lotion is applied on bees stings.

MEDIUM

7th CBSE

IMPORTANT

Science Horizons>Chapter 5 - Acids, Bases, and Salts>Exercises>Q E

Explain the following:
Base is added to factory waste before releasing it.

EASY

7th CBSE

IMPORTANT

Science Horizons>Chapter 5 - Acids, Bases, and Salts>Exercises>Q E

What are indicators? Give two examples.

EASY

7th CBSE

IMPORTANT

Science Horizons>Chapter 5 - Acids, Bases, and Salts>Exercises>Q E

You are given the dilute sulphuric acid. What is effect of it on the red litmus?

EASY

7th CBSE

IMPORTANT

Science Horizons>Chapter 5 - Acids, Bases, and Salts>Exercises>Q E

You are given the dilute sulphuric acid. What is effect of it on the blue litmus?

MEDIUM

7th CBSE

IMPORTANT

Science Horizons>Chapter 5 - Acids, Bases, and Salts>Exercises>Q E

You are given the dilute sulphuric acid. What is effect of it on the phenolphthalein?