Class 12th

DiBAL-H is electron deficient reducing agent as Burane and readily reduces electron rich sp.

$AgBr?A{g}^{+}+B{r}^{-}$                

S + 10^-7                        S

(S + 10^-7) S = 12 * 10^-14

  $\therefore S=3*10^{-7}M$          

${\kappa }_{totel}=\left[6*4*10^{-7}\right]+\left[8*3*10^{-7}\right]+\left[7*1*10^{-7}\right]$          

= 55 * 10^-7 S m^-1

The slag formed is CaSIO₃ which is lighter and has less melting point.

Ferdal Craft reaction not shown by Highly Activated Rings.

Anode      Ag + Br^- -> AgBr + e^-

Cathode   Ag⁺ + e^- ® Ag

  ${E^o}_{cell}={\left({E^o}_{RP}\right)}_C-{\left({E^o}_{RP}\right)}_A$        

$\begin{array}{l}{E}_{cell}=-0.06log{K}_{sp}-0.06log100\\ 0.643=-0.06log{K}_{sp}-0.12\\ log{K}_{sp}=-\frac{0.763}{0.06}=-12.71\end{array}$            

(a)  [1rCl (CO) (PPh₃)₂] carbonylchloridobis (triphenylphosphine) iridium (I).

(b)  Coordination number of Ir is four. Ir is in (+1) oxidation state with 4d⁸ configuration. It is trans isomer, so its geometry should be square planar.

(c) All electrons are paired, hence diamagnetic

(d)  Can exhibit GI only.

Fe acts a catalyst and Mo acts as promoter in Haber's process.

BOD value less than 5ppm is considered as clean water and BOD value more than 10ppm is considered as polluted water.

Reaction rate is used to measure how fast or slow reactions occur per unit time. The rate constant is a proportionality factor that remains constant for every reaction.