MCQ
Select the correct order of bond angle ?
- A$NO_2^+ > NO_2 > NH_4^+$
- B$COF_2 < COCl_2 < COBr_2$ ($X-C-X$ bond angle where $X$ is halogen)
- C$H_2S < SF_2 < SCl_2$
- ✓All of these
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$\mathrm{Eu}, \mathrm{Cm}, \mathrm{Er}, \mathrm{Tb}, \mathrm{Yb}$ and $\mathrm{Lu}$

[Given $: R =8.31 \,J \,K ^{-1} \,mol ^{-1}, \log 1.33=0.1239$ $\ln 10=2.3]$
The product formed is