Borazine and benzene show striking similarities in their properties. This led to the labeling of borazine as 'inorganic benzene'. However, in contrast to benzene, borazine readily undergoes addition reactions. The appropriate reason for this difference is:

$\left({\mathrm{SnCl}}_4\right)$ stannic chloride hydrolyses in dilute solution as per given reaction

${\mathrm{SnCl}}_4+4{\mathrm{H}}_2\mathrm{O}⟶\left[\mathrm{Sn}(\mathrm{OH}{)}_4\right]+4\mathrm{HCl}$

Hydrolysis can be repressed by adding compound $"\mathrm{A}"$.

${\mathrm{SnCl}}_4+\mathrm{A}⟶\mathrm{B}$

$\mathrm{B}$ can be

Amphoteric oxide$\left(\mathrm{X}\right)+3\mathrm{C}+{\mathrm{Cl}}_2⟶$ Poisonous gas $+$ anhydrous chloride $\left(\mathrm{Y}\right)$

Hydrated chloride $\stackrel{\mathrm{\Delta }}{⟶}\mathrm{Z}$

Element formed $\text{'}\mathrm{Y}\text{'}$ other than $\text{'}\mathrm{Cl}\text{'}$ reacts with concentrated $\mathrm{HCl}$ but leads to passivation with concentrated ${\mathrm{HNO}}_2$. Select the correct option.

Preparation of organosilicon from ${\mathrm{SiCl}}_4$ involves substitution in the first step

${\mathrm{SiCl}}_4+\mathrm{xRMgCl}⟶(\mathrm{R}{)}_{\mathrm{x}}{\mathrm{SiCl}}_{4-\mathrm{x}}+{\mathrm{xMgCl}}_2$

Values of $\text{'x'}$ to obtain chain-terminating and chain multiplication parts of chain silicone produced are respectively

How many of the following statements are correct regarding allotropes of carbon

$\left(\mathrm{a}\right)$ Graphite is not a good conductor of electricity in the perpendicular direction of layers at ordinary temperatures.

$\left(\mathrm{b}\right)$ Coke is an impure form of carbon.

$\left(\mathrm{c}\right)$ Anthracite is the purest form of carbon.

$\left(\mathrm{d}\right)$ Buckminster fullerene contains $12$ five-membered rings and $20$ six-membered rings.

$\left(\mathrm{e}\right)$ Diamond is a good conductor of heat.

$\left(\mathrm{f}\right)$ Graphite is diamagnetic in nature.

$\left(\mathrm{g}\right)$ Graphite is thermodynamically more stable than diamond.

Consider a prototypical fullerene, ${\mathrm{C}}_{60}$.

Let $\mathrm{a}=$ Number of $5$-membered rings

$\mathrm{b}=$ Number of $6$-membered rings

$\mathrm{c}=$ Number of $\pi$-bonds in ${\mathrm{C}}_{60}$

Find the value of $(3\mathrm{a}-2\mathrm{b}+\mathrm{c})$

How many of the given statements are true for potash Alum.

$\left(1\right)$ It is a white crystalline solid

$\left(2\right)$ It swells up on heating

$\left(3\right)$ It imparts a golden yellow colour to the bunsen flame

$\left(4\right)$ An aqueous solution of the above gives a white precipitate with ${\mathrm{BaCl}}_2$ solution soluble only concentrated sulphuric acid.