- AIs reversible
- BIs reversible and endothermic
- CIs exothermic
- ✓Is reversible or irreversible and endothermic or exothermic
All reactions which have chemical disintegration are reversible or irreversible and endothermic or exothermic.
Example of irreversible and exothermic reaction which disintegrates into its following constituents:
$2 KClO _3( S ) \stackrel{\Delta}{\rightarrow} 2 KCl ( S )+3 O _2( g )$
Example of reversible reaction:
$N _2( g )+3 H _2( g ) \rightleftharpoons 2 NH _3( g )$
Example of endothermic reaction:
$HCO _3^{-}+ H ^{+} \rightarrow H _2 O + CO _2$
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Assertion $A:$ The spin only magnetic moment value for $\left[ Fe ( CN )_6\right]^{3-}$ is $1.74 BM$, whereas for $\left[ Fe \left( H _2 O \right)_6\right]^{3+}$ is $5.92\,BM$.
Reason $R :$ In both complexes, $Fe$ is present in +3 oxidation state.
In the light of the above statements, choose the correct answer from the options given below:
$\Psi_{2 s}=\frac{1}{2 \sqrt{2 \pi}}\left(\frac{1}{a_0}\right)^{1 / 2}\left(2-\frac{ r }{ a _0}\right) e ^{- r / 2 a _0}$
At $r=r_0$, radial node is formed. Thus, $r_0$ in terms of $a_0$

$\underset{I}{\mathop{C{{H}_{3}}-C{{H}_{2}}-N{{H}_{2}}}}\,$
$\underset{II}{\mathop{{{(C{{H}_{3}}C{{H}_{2}})}_{2}}NH}}\,$
$\mathop {{{(C{H_3}C{H_2})}_3}N}\limits_{II} $