Question

12
iv)KCI
The positions of four elements A, B, C and D in the modern periodic table are shown
below. Which element is most likely to form an acidic oxide?
1
i) A
ii) B
iii)
iv) D
OR
e atomic numbers 11.15. 17 and 18 respectively. Which of​

Answer 1

Answer:

c

Explanation:

as C has atomic number 17 it is chlorine and other all are metals and chlorine is a non metal and oxides of non metal are acidic in nature

Answer 2

Answer:

C

Explanation:

A = atomic number = 11

This means element A is sodium which is a metal that forms a basic oxide.

B = atomic number = 15

This means element B is phosphorous which is a non-metal which can form acidic oxide.

C = atomic number = 17

This means element C is chlorine which is a non-metal which can form an acidic oxide.

D = atomic number = 18

This means element D is argon which is a non-metal and also an inert gas that will not react oxygen. This means it will not form acidic oxide.

Elements B and C belong to the same period in a periodic table where C lies right of B. We know that moving left to right along the period increases non-metallic character and hence, the acidic character of the oxide. So, among B and C, C will form most likely to form an acidic oxide.