Chapter 22: Solutions - Science Mcqs for Grade 7

1.

A ph scale ranges from zero to

A. 10

B. 6

C. 11

D. 14

Answer & Solution Discuss in Board

2.

For removing paints and dyes 'caustic potash' is used. Its scientific name is

A. potassium hydroxide

B. sodium hydroxide

C. magnesium carbonate

D. magnesium hydroxide

Answer & Solution Discuss in Board

3.

The 'pH' of rain water is slightly

A. acidic

B. basic

C. neutral

D. alkali

Answer & Solution Discuss in Board

4.

A scale which is used to measure hoe acidic or alkaline is called

A. indicator

B. pH scale

C. pH meter

D. balance scale

Answer & Solution Discuss in Board

5.

If the color, density, appearance and other physical and chemical properties are the same, solution is called

A. heterogeneous

B. homogenous

C. saturated

D. unsaturated

Answer & Solution Discuss in Board

6.

When copper sulphate solution is added to sodium hydroxide solution, it gives off pale blue cloudy suspension of

A. copper hydroxide

B. copper oxide

C. copper chloride

D. copper metal

Answer & Solution Discuss in Board

7.

The 'solvents' which keep us alive includes

A. air

B. water

C. oxygen

D. carbon

Answer & Solution Discuss in Board

8.

Acids turns

A. red litmus blue

B. blue litmus red

C. change after long time

D. no change

Answer & Solution Discuss in Board

Practice MCQ Questions and answers on Chapter 22: Solutions - Science Mcqs for Grade 7

1. A ph scale ranges from zero to

Answer & Solution

2. For removing paints and dyes 'caustic potash' is used. Its scientific name is

Answer & Solution

3. The 'pH' of rain water is slightly

Answer & Solution

4. A scale which is used to measure hoe acidic or alkaline is called

Answer & Solution

5. If the color, density, appearance and other physical and chemical properties are the same, solution is called

Answer & Solution

6. When copper sulphate solution is added to sodium hydroxide solution, it gives off pale blue cloudy suspension of

Answer & Solution

7. The 'solvents' which keep us alive includes

Answer & Solution

8. Acids turns

Answer & Solution

Read More Section(Science Mcqs)

1.

A ph scale ranges from zero to

2.

For removing paints and dyes 'caustic potash' is used. Its scientific name is

3.

The 'pH' of rain water is slightly

4.

A scale which is used to measure hoe acidic or alkaline is called

5.

If the color, density, appearance and other physical and chemical properties are the same, solution is called

6.

When copper sulphate solution is added to sodium hydroxide solution, it gives off pale blue cloudy suspension of

7.

The 'solvents' which keep us alive includes

8.

Acids turns