MP Police Constable 2023 Question Paper (01-Sep-2023) Shift 3

Question 1

What is the original colour of Litmus solution?

Accepted Answer

Purple

Answer

Blue

Answer

Pink

Answer

Red

Question 2

Which gas is formed when metal hydrogen carbonates react with acids?

Accepted Answer

$CO_2$

Answer

$H_2$

Answer

$O_2$

Answer

CO

Question 3

What is the pH of the mouth when tooth decay starts?

Accepted Answer

Lower than 5.5

Answer

Lower than 6

Answer

Lower than 5

Answer

Lower than 4.8

Question 4

Washing soda is used in:1. Removing permanent hardness of water2. Glass, Soap and paper industries

Accepted Answer

Both 1 and 2

Answer

Only 1

Answer

Only 2

Answer

Either 1 or 2

Question 5

Which of the following is an incorrect statement?

Accepted Answer

The solute particles of a solution can be separated from the mixture by the process of filtration.

Answer

A solution is a homogeneous mixture.

Answer

The particles of a solution are smaller than 1 nm ($10^{-9}$ metre) in diameter.

Answer

Because of very small particle size, they do not scatter a beam of light passing through the solution.So, the path of light is not visible in a solution.

MP Police Constable 2023 Question Paper (01-Sep-2023) Shift 3

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