Chemistry

  $C{H}_3-C{H}_2-C{H}_2-C-N{H}_2\to \pi -\mathcal{l}pconjugation$  

              $C{H}_3-C{H}_2-CH=CH-C{H}_2-N{H}_2\to$ No conjugation

          $C{H}_3-C{H}_2-O-CH=C{H}_2\to \pi -\mathcal{l}p$     conjugation

Depression in freezing point will be maximum for Al₂ (SO₄)₃ since its Van't Hoff factor is the highest. So its solution will have the lowest freezing point.

Only tritium is the isotope of hydrogen which is radioactive in nature that emits low energy b^- particles since its $\frac{n}{p}$ ratio is above stability belt.

When AgNO₃ is added to Kl solution, precipitate of Agl is formed which adsorb I^- ion from

Dispersion medium to give negatively charged sol

$AgN{O}_3+Kl\to Agl\downarrow +KN{O}_3$

Agl/l^-- negatively charged sol.

Esters on treating with excess CH₃MgBr followed by hydrolysis gives 3° alcohol.

 

Electronic configuration of Ga⁺ ion = [Ar] 3d¹⁰ 4s² 4p⁰

Last electron goes into S-orbital, hence

Azimuthal quantum number $\left(\mathcal{l}\right)$ for last electron = 0

Kt = 2.303 log $\frac{\left[A_0\right]}{\left[A_t\right]}$  

Here, $\left[A_0\right]=100,\left[A_t\right]=90andt=1min$  

$\therefore K*1=2.303lo{g}_{10}\frac{100}{90}$

$\therefore K=2.303\left[1-2*0.477\right]=0.105938=105.938*10^{-3}mi{n}^{-1}$                             

Rounded = 106

Reaction of acetone and semicarbazide