Question

18) Which of the following elements gives a basic oxide?
a) Phosphorous
b) Calcium
c) Sulphar
d) Carbon​

Answer 1

Answer:

Now out of the above given elements only Ca is a metal (Ca=calcium), therefore, Ca will yield a basic oxide. The elements (S) (sulphur),P (phosphorus) and Si (silicon) are all non-metals.

Answer 2

Answer:

b) Calcium

Explanation:

Only metal elements yield basic oxides. Now out of the above given elements only Calcium is a metal, therefore, Ca will yield a basic oxide.

The elements Phosphorus, Sulphur, and Carbon are all non-metals.

Hope it helps!