Question

Molecular formula of the chloride of an element X is XCl. This compound is a solid having high melting point. Which of the following elements be present in the same group as X.

Answer 1

Heya!!



Here's ur answer....


The elements can be :
Sodium (Na)
Potassium (K)
Rubidium (Rb)
Cesium (Cs)
Francium(Fr)


All these elements are metals and have a Valency of +1.


Hope it helps!!


Thank you..

Answer 2

Hey dear,
You forgot to mention options. Don't wprry, I'll add those.
a) Na b) Mg c) Al d) Si


● Answer -
(a) Na

● Explaination -
- Given that assumed element chloride is solid which suggests it is a metal.
- High melting point suggests ionic bond
- Molecular formula of chloride is XCl, valency of Cl is -1, to balance this metal should have valency +1.
- Na will form metal chloride, NaCl.
- From the given options only sodium has valency +1, therefore Na is our answer.

Hope this helps you...