See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

Statement – 1 Singlet carbene has zero unpaired electron hence spin multiplicity 2s 1 s = total spin n 1 s , n 0 2        Statement – 2 O H ,no. of electron = 2  According to (n + ) rule 2 0 0 1s 2s 2p ground state 1st excited state 2nd excited state  Hence 1 o 1 1 1s 2s 2p 2p   Degeneracy = 3 Statement – 3 In presence of Mg vicinal dihalides involved in elimination reaction. Statement – 4     4 4 AgF and AuCl   both are dsp2 hybridized.