set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

If the valene shell electronic configuration for an element is $ns^2np^5$, this element will belong to the group of –

a) inert metals

b) noble gases

c) alkali metals

d) halogens

Question : 2

Which of the following group of elements belongs to alkali metals?

a) 37, 19, 3, 55

b) 9, 17, 35, 53

c) 1, 12, 30, 4, 62

d) 12, 20, 56, 88

Question : 3

Match List-I with List-II:

a) A – (4), B – (1), C – (5), D – (3)

b) A – (2), B – (3), C – (1), D – (5)

c) A – (3), B – (1), C – (4), D – (5)

d) A – (3), C – (2), C – (5), D – (1)

Question : 4

In the KMnO₄ molecule, the oxidation states of the elements Potassium (K), Manganese (Mn) and Oxygen (O) are respectively

a) +1, +7, – 2

b) 0, 0, 0

c) +1, +5, – 2

d) +1, +7, 0

Question : 5

The long form of periodic table consists of

a) seven periods and eighteen groups

b) eight periods and eighteen groups

c) seven periods and eight groups

d) eighteen periods and eight groups

Question : 6

Match List-I (Oxidation number) with List-II (the element) and select the correct answer using the code given below the lists

a) 4 3 1 2

b) 3 4 2 1

c) 3 4 1 2

d) 4 3 2 1