MP Police Constable 2023 Question Paper (08-Sep-2023) Shift 3

Question 1

An isotope of ________ is used as a fuel in nuclear reactors.

Accepted Answer

Uranium

Answer

Cobalt

Answer

Iodine

Answer

Hydrogen

Question 2

A solution contains 50 g of common salt in 300 g of water. Calculate the concentration in terms of mass-by-mass percentage of the solution.

Accepted Answer

14.28 Percent

Answer

16 Percent

Answer

7 Percent

Answer

11.1 Percent

Question 3

Which of the following orders are correct with respect to decreasing reactivity?

Accepted Answer

Calcium > Lead > Copper

Answer

Mercury > Silver > Aluminium

Answer

Iron > Magnesium > Sodium

Answer

Calcium > Sodium > Iron

Question 4

What would be the pH of an aqueous solution of sulphuric acid which is $5 	imes 10^{-3}$ mol $L^{-1}$ in concentration?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 5

Which one of the following is not a form of Calcium Carbonate?

Accepted Answer

Blackstone

Answer

Limestone

Answer

Chalk

Answer

Marble