Chemistry

Cannizzaro reaction is shown by aldehydes containing no alpha–H atoms

Higher is the stability of carbocation, greater is the reactivity towards Sn1.

Correct order of reactivity towards Sn₁ reaction is

Zn₂₊ has no unpaired electron and colourless in aqueous solution.

$RC=CR\text{'}+H_2\underset{BaS{O}_4}{\overset{Pd/C}{?}}$

Ranitidine, cimetidine and magnesium hydroxide are antacids.

Serotonin is a tranquilizers.

 Kindly go through the solution 

Correct order of reducing character is

NH₃ < PH₃ < AsH₃ < SbH₃ < BiH₃

  $P_T=P_A^o{X}_A+P_B^o{X}_B$

$170=200X_A+100\left(1-X_A\right)$

$170=200X_A+100-100X_A$  

X_A = 0.7                   X_B = 0.3

$Y_A=\frac{P_A^o{X}_A}{P_T}=\frac{0.7*200}{170}=0.82$ f

Due to inert pair effect Tl shows +1 oxidation state.