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.
$$Ca$$
Answer :
$$Fe$$
Solution :
A binary compound is that compound which is formed by two different elements. Metals or elements which shows variable oxidation states can form more than one binary compound. In the given elements only $$Fe$$ shows + 2 and + 3 oxidation states. So, it can form two binary compounds with chlorine as $$FeC{l_2}$$ and $$FeC{l_3}.$$
Releted MCQ Question on Inorganic Chemistry >> P - Block Elements
Releted Question 1
The reddish brown coloured gas formed when nitric oxide is oxidised by air is