Chemistry

Bakelite is cross linked polymer of formaldehyde and novolac. Novolac is linear polymer of phenol-formaldehyde.

Kindly consider the following figure

Given electronic configuration is for Ga and in 5^th period diagonally situated element is Sn with respect to Ga. Hence electronic configuration of Sn is [Kr]4d¹⁰5s²5p².

Mechanism path is free radical.

Conductivity;    $\kappa =1.07*10^{6}S{m}^{-1}$

Resistance ; R = 0.243    $\Omega$

cell constant ; G^* =?

Using ;

$\kappa =\frac{G^{*}}{R}$      

$G*=\kappa *R$          

$=1.07*10^6*0.243m^{-1}$                

$=26*10^4{m}^{-1}$              

Lithium salts are extensively hydrated due to high hydration enthalpy of Li⁺

$L{i}^{+}>N{a}^{+}>K^{+}>R{b}^{+}>C{s}^{+}$ (order of polarizing power)

Moles of sodium = $\frac{8}{23}mol$  

Number of atoms = $\frac{8}{23}*6.02*10^{23}$  

$\approx 2*10^{23}$                                            

$Cl{O}_2^{-},C{l}_2,M{n}^{3+}$ can show disproportionation reaction while $Mn{O}_4^{-}$ cannot show disproportionation reaction is Mn is in +7 oxidation state.

$B_2^{+}\to \sigma 1s^{2}s*1s^2\sigma 2s^2\sigma *2s^2\pi 2p^1$  

Here, number of unpaired electrons, n = 1

Spin only moment ;    $\mu =\sqrt[]{n\left(n+2\right)}B.M$

= 173 * 10^-2 B.M

$H_2\underset{hv}{\overset{high\text{?}\text{?}T}{?}}2H$

Zn + 2HCl -> ZnCl₂ + H₂

$NaO{H}_{\left(aq\right)}+Zn?N{a}_{2}Zn{O}_2+H_2$        

$H_2\stackrel{2000K}{?}2H$    

It is nearly 0.081%.