Among K, Ca, Fe and Zn, the element which can form more than one binary compound with chlorine is:

Question

Among K, Ca, Fe and Zn, the element which can form more than one binary compound with chlorine is: (A) Fe (B) Zn (C) K (D) Ca

Tardigrade Admin · Accepted Answer

A binary compound is one made of two different elements These can be one of each element such as

C u Cl

or

F e O

These can also be several of each element such a

F e_{2} O_{3}

or

S n B r_{4}

Metals which have variable oxidation number can form more than one type of binary compounds like Fe shows the oxidation state

+ 2

and

+ 3

. Hence it forms two types of binary compounds, e.g.,

F e C l_{2}, F e C l_{3}

Q. Among $K, C a, F e$ and $Z n$ , the element which can form more than one binary compound with chlorine is: