Explain the following :
(a) `NO_(2)` readily forms a dimer.
(b) `BiCI_(3)` is more stable than `BiCI_(5).`

NO_2 readily forms a dimer. Explain.

Explain the following : (a) Why MeNH overset (oplus) CH_2 (I) is more stable more than MeCH_2 overset (oplus) CH_2 (II) when both are 1^@ carbocations ? (b) Which of the following intermediate is unstable ? ( c) Why allylic free radical (CH_2 - CH = CH_2) (I) is more stable than propy1 free radical (dot C H_2 - CH_2 - CH_3) (II) , when both are 1^@ free radicals ?

Why K _(3)[Fe(CN)_(6)] is more stable than K_(4)[Fe(CN)_(6)]

In which of the following pairs A is more stable than B?

Why H_(2) is more stable than H_(2)^(+) while He_(2)^(+) is more stable than He_(2) ?

Explain that (A) readily forms an alkene with I^(c-) but (B) does not.

Explain the (CH_3)_3 C^(-) is less stable than bar(C) H_3 .

Account for the following : (i) Oxygen does not show an oxidation state of + 4 and + 6 like sulfur . (ii) NO_2 readily forms a dimer. (iii) Fluorine always exhibits and oxidation state of -1 only in its compunds

Explain the following giving reasons [Fe(H_(2)O)_(6)]^(3+) ion is more paramagnetic than [Fe(CN)_(6)]^(3-) ion

Which of the following alkene is more stable than