Identify the most stable species in the following set of ions giving reasons
(a) `overset(+)(C)H_(3), overset(+)(C)H_(2) Br, overset(+)(C)HBr_(2), overset(+)(C)Br_(3)` (b) `overset(Θ)(C)H_(3), overset(Θ)(C)H_(2)Cl, overset(Θ)(C)HCl_(2), overset(Θ)(C)Cl_(3)`

Identity the most stable species in the following sets of ions giving reasons : (i) overset(+) CH_3, overset(+) CH_2 Br , overset(+) C HBr_2 , overset(+) CBr_3 (ii) overset(-) CH_3, overset(-) CH_2 CI, overset(-) CH CI_2, overset(-) C CI_3

In the following reaction sequence - (1) ClrarrClrarroverset(•)(C )+overset(•)(C )l (2) overset(•)(C )l+CH_(4)rarroverset(•)(C )H_(3)+HCl (3) overset(•)(C )H_(3)+Cl_(2)rarrCH_(3)Cl+overset(•)(C )l (4) overset(•)(C )H_(3)+overset(•)(C )H_(3)rarrCH_(3)-CH_(3) the termination step is -

In the compound overset (1)(C ) H_2 = overset (2)(C)H-overset (3)(C )H_2-overset (4)(CH_2) -overset(5)(C)-=overset (6)(C )H the overset (2) (C ) -overset (3)(C) bond is of the type :

Give the stability of the following resonance structures (a) H_(2)C = overset(o+)N =overset(Θ) (b) H_(2)overset(o+)C -N =overset(Θ)N (c ) H_(2)overset(Θ)C -overset(o+)N -= N (d) H_(2) overset(Θ)C - N = overset(o+)N .

Which of the following is//are the chain termination step during photochloration of ethane? CH_(3)overset(.) (C)H_(2)+ overset(.)(C)l toCH_(3)-CH_(2)-Cl CH_(3)overset(.)(C)H_(2)+CH_(3)overset(.)(C)H_(2) to CH_(3)CH_(2)CH_(2)CH_(3) overset(.) (C)l+overset(.)(C)l to Cl_(2) overset(.)(C)l+overset(.)H to HCl

Write the IUPAC name of the following compound. overset(5)(C)H_(3)-overset(4)(C)H_(2)-underset(CH_(3))underset(|)overset(3)(C)H-underset(CH_(3))underset(|)overset(CH_(3))overset (2|)(C)-overset(1)(C)H_(3) overset(1)(C)H_(3)-overset(2)(C)H_(2)-overset(3)(C)H_(2)-overset(4)(C)H_(2)-underset(CH_(3))underset(3|)underset(CH-CH_(3))underset(2|)underset(CH-CH_(3))underset(1|)overset(6)(CH)-overset(6)(C)H_(2)-overset(7)(C)H_(2)-overset(8)(C)H_(2)-overset(9)(C)H_(3)