Chemistry

Kindly consider the following Image

Isohexane and 3-Methylpentane having same molecular formula. Isohexane boil at ${60}^{?}\mathrm{C}$ and 3-Methyul pentane boils at ${63}^{?}\mathrm{C}$ . Both having low boiling point difference so fractional distillation is useful for separation and isohexane having low boiling point so comes out first.

Ethyl acetate $\left(\begin{array}{c}{\mathrm{C}\mathrm{H}}_3-\mathrm{C}-{\mathrm{O}\mathrm{C}}_2{\mathrm{H}}_5\\ ?\\ \mathrm{O}\end{array}\right)$  is polar molecule, so dipole-dipole and London

Forces will be present between them.

Diborane $\left({\mathrm{B}}_2{\mathrm{H}}_6\right)$  is used to reduced carboxylic acid to alcohol.

According to Hardy-Schulze Rule coagulation value $\alpha \frac{1}{\text{Coagulation Power}}$

Kindly consider the following Image

Gypsum $\stackrel{393\mathrm{K}}{?}{\mathrm{C}\mathrm{a}\mathrm{S}\mathrm{O}}_4\frac{1}{2}{\mathrm{H}}_2\mathrm{O}$

At a fixed temperature, $\mathrm{X}$ $$ having more vapour pressure as compared to $$ $\mathrm{Y}$ . So, intermolecular interaction is lower as compared to $\mathrm{Y}$ $$ .

$\mathrm{}{}_{26}\mathrm{F}\mathrm{e}=\left[\mathrm{A}\mathrm{r}\right]3{\mathrm{d}}^{6}4{\mathrm{S}}^2$

Among Ni, Co, Mn, Fe

Fe having minimum third ionization energy

Except ${\mathrm{O}}_2$ , remarginal ${\mathrm{C}\mathrm{O}}_2,{\mathrm{O}}_3,{\mathrm{H}}_2\mathrm{O},\mathrm{C}\mathrm{F}\mathrm{C}\mathrm{s}$  are green house gases