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)`

The correct stability order of the following resonance structure is : (I) H_(2)C= overset( +)(N) =overset( -)(N) (II) H_(2)overset( +)(C )-N = overset( -)(N) (III) H_(2)overset( -)(C ) - overset( +)(N) = N (IV) H_(2)overset( - ) (C ) -N = overset( +)(N )

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

Draw the most stable Newman projection formula along C_(1)-C_(2) bonds of following compounds. (I) overset(1)(C)H_(3)-overset(2)(C)H_(2)-CH_(3) (ii) overset(1)(C)H_(3)-overset(2)underset(overset(|)(CH_(3)))(C)H-CH_(3) (iii) CH_(3)-overset(underset(|)(CH_(3)))(underset(1)(C))H-overset(underset(|)(CH_(3)))(underset(2)(C))H-CH_(3) (iv) HO-overset(1)(C)H_(2)-overset(2)(C)H_(2)-F

What is the hyper-conjugation? Which is the most stable among the following? CH_(3)overset(*)(CH_(2)),overset()((CH_(3))_(3))overset(*)(C), (CH_(3))_(2)overset(*)(C)H

For the given four structures , I to IV, which of the following is correct ? underset((I))(C_(2)H_(5)-overset(CH_(3))overset(|)(C)H-C_(3)H_(7)) underset((II))(CH_(3)-overset(O)overset(P)(C)-overset(CH_(3))overset(|)(C)H-C_(2)H_(5)) underset((III))(CH_(3)-overset(O)overset(P)(C ) -overset(C_(2)H_(5))overset(|)(C ) H -C_(2)H_(5)) underset((IV))(C_(2)H_(5)-overset(CH_(3))overset(|)(C)H-C_(2)H_(5))

Write the IUPAC name of the following compound: H_(3)C-overset(O)overset(||)(C)-CH_(2)-overset(Cl)overset(|)(CH)-CH_(3)

Write the IUPAC names of the following compounds: (i) CH_(3)-overset(CH_(3))overset(|)(CH)-CH_(3)-CH_(2)-overset(O)overset(||)C-CH_(2)Cl (ii) overset(H_(2)C-COOH)overset(|)underset(H_(2)C-COOH)underset(|)(HO-C-COOH)