Question

8.22
Consider the elements :
Cs. Ne, I and F
(a) Identify the element that exhibits only negative oxidation state.
(b) Identify the element that exhibits only postive oxidation state.
(c) Identify the element that exhibits both positive and negative oxidation states.
(d) Identify the element which exhibits neither the negative nor does the positive
oxidation state.

Answer 1

Explanation:

a) F is the most electronegative element,it means F is the only element which exhibits only negative oxidation state.

(b) Cs is the most electropositve element, it means Cs is the only element which exhibits only positive oxidation state.

(c) I exhibits both positive and negative oxidation state.Iodine exhibits -1, 0, +1,+3,+5,+7 [due to presence of vacant d orbitals positive oxidation state exhibits of iodine.

(d) Ne, Ar, Xe , Rn, He etc are inert gases, so, these are neither positive nor negative oxidation states

Answer 2

Answer:

• f is the most electro negative element
• Cs Is the most electro positive element
• I exhibits both the property negative and positive.
• Ne etc are inert gases.

hope it helps you