Which of the following statements is/are true?
(i) Sulphur exhibits 6 coordination number in its compound.
(ii) Bond energy of $${F_2}$$ is less than $$C{l_2}.$$
(iii) $$PC{l_5}$$ does not exist but $$NC{l_5}$$ exists.
(iv) Elements of 15th group show only +3 and +5 oxidation states.
A.
(i) and (ii)
B.
(ii) only
C.
(ii) and (iii)
D.
All of these
Answer :
(i) and (ii)
Solution :
Fluorine is more reactive than chlorine. So, bond energy of chlorine is greater than fluorine. Sulphur exhibits 6 coordination number. $$PC{l_5}$$ exists but $$NC{l_5}$$ does not exist as $$N$$ cannot expand its octet due to non-availability of $$d$$ - orbitals. The common oxidation states of group 15 elements are -3, +3 and 5.
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