Which of the following is/are correct ?

Options

A. Carbon-carbon bond length in `CaC_(2)` will be more than that in `CH_(2)C CH_(2)`
B. O–O bond length in `KO_(2)` is more than that in `Na_(2)O_(2)`
C. O–O bond length in `BaO_(2)` will be more than that in `KO_(2)`
D. N–O bond length in NO gaseous molecule is equal to bond length in NOCl gaseous molecule

Answer

C

Explanation

(i) In `CaC_(2) to Ca^(+2) C_(2)^(-2) [ ""^(-)C-=C^(-)]` (Triple bond)
In `CH_(2)CCH_(2) to H_(2)C = C= CH_(2)` (double bond)
(ii) `In KO_(2) to O_(2)^(-) " " ` bond order = 1.5
`In Na_(2)O_(2) to O_(2)^(-2) " "` bond order = 1
(iii) `In O_(2) [PtF_(6)] to O_(2)^(+2) " " ` bond order = 1
`In KO_(2) to O_(2)^(-) " "` bond order = 1.5
(iv) `In NO to ` bond order = 2.5
`In NOCl to NO^(+)" "` bond order = 2