PG entrance exam CUET PG 2025 Mock Test Chemical Sciences Main Group Elements and Their Compounds p - Block
Which of the following reaction(s) do(es) NOT occur
(i) [NPCl2]3 + 6 NaF \(\rm \xrightarrow[reflux]{MeCN}\) [NPF2]3 + 6 NaCl
(ii) n PCl5 + n NH4Cl \(\rm \xrightarrow[reflux]{C_6H_5Cl}\) [NPCl2]n + 4 n HCl [n = 3, 4, 5]
(iii) n PF5 + n NH4F \(\rm \xrightarrow[reflux]{C_6H_5Cl}\) [NPF2]n + 4 n HF [n = 3, 4, 5]
1
(i) and (iii)
2
(i) and (ii)
3
(i) only
4
(iii) only