MCQ
Which types of isomerism is shown by $2, 3-$ dichlorobutane
- ADistereo
- ✓Optical
- CGeometric
- DStructural

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$C{o^{3 + }}{e^ - } \longrightarrow C{o^{2 + }};\,{E^o} = 1.81\,V$
$P{b^4} + 2{e^ - } \longrightarrow P{b^{2 + }};\,{E^o} = + 1.67\,V$
$C{e^{4 + }} + {e^ - } \longrightarrow C{e^{3 + }};\,{E^o} = + 1.61\,V$
$B{i^{3 + }} + 3{e^ - } \longrightarrow Bi;\,{E^o} = + 0.20\,V$
Oxidizing power of the species will increase in the order
Assertion $A:$ Metallic sodium dissolves in liquid ammonia giving a deep blue solution, which is paramagnetic.
Reason $R:$ The deep blue solution is due to the formation of amide.
In the light of the above statements, choose the correct answer from the options given below :