What are X and Y in the following reaction sequence ?
\(\mathrm{C}_6 \mathrm{H}_5 \mathrm{~N}_2^{+} \mathrm{Cl}^{-} \xrightarrow{\mathrm{X}} \mathrm{C}_6 \mathrm{H}_5 \mathrm{CN} \xrightarrow[\text { (ii) } \mathrm{H}_2 \mathrm{O}]{\text { (i) } \mathrm{CH}_3 \mathrm{MgBr}} \mathrm{Y}\)

Match the following
\begin{array}{ll}
\multicolumn{1}{l}{\begin{array}{l}
List-I \\
(Process)
\end{array}} & \begin{array}{l}
List-II \\
(Catalyst)
\end{array} \\
(A) Ostwald's process & (I) \mathrm{NO} \\
(B) Lead Chamber process & (II) \mathrm{Fe} \\
(C) Deacon's process & (III) \mathrm{Rh} \\
(D) Haber's process & (IV) \mathrm{CuCl}_2
\end{array}
The correct answer is

Match the following compounds with their corresponding physical properties:

	Column-I		Column-II
(a)	$\mathrm{IBr}$	(i)	Orange solid
(b)	${\mathrm{ClF}}_3$	(ii)	Yellow-green liquid
(c)	${\mathrm{BrF}}_3$	(iii)	Black solid
(d)	${\mathrm{ICl}}_3$	(iv)	Colorless gas

The order of basic strength of the following in aqueous solution is
I. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{NH}_2\)
II. \(\left(\mathrm{CH}_3\right)_3 \mathrm{~N}\)
III. \(\mathrm{NH}_3\)
IV. \(\mathrm{CH}_3 \mathrm{NH}_2\)
V. \(\left(\mathrm{CH}_3\right)_2 \mathrm{NH}\)

When ' \(\mathrm{X}\) ' \(\mathrm{g}\) of graphite is completely burnt in a bomb calorimeter in excess of \(\mathrm{O}_2\) at \(298 \mathrm{~K}\) and \(1 \mathrm{~atm}\) pressure as given in the equation
\(\mathrm{C}\) (graphite) \(+\mathrm{O}_2(\mathrm{~g}) \rightarrow \mathrm{CO}_2(\mathrm{~g})\)
The temperature of calorimeter raised from \(298 \mathrm{~K}\) to \(302 \mathrm{~K}\). If the heat capacity of the calorimeter and molar enthalpy change for the reaction at \(1 \mathrm{~atm}\) and \(298 \mathrm{~K}\) are \(20.7 \mathrm{~kJ} \mathrm{~K}^{-1}\) and \(-248.4 \mathrm{~kJ} \mathrm{~mol}^{-1}\), ' \(\mathrm{X}^{\prime}\) in \(\mathrm{g}\) is

Which of the following reactions proceeds via a secondary free radical?

Which of the following has more \(\mathrm{pK}_{\mathrm{a}}\) value?

A car moving at a speed \(v\) is stopped by a retarding force \(F\) in a distance \(s\). If the retarding force were \(3 F\), then the car will be stopped in a distance

If $\int \left[\cos \left(x\right)·\frac{d}{dx}(cosec(x\left)\right)\right]dx=f\left(x\right)+g\left(x\right)+c$, then $f\left(x\right)·g\left(x\right)=$

Let \(S\) be a finite set. Then a non-identity function \(f: S \rightarrow S\) can be

A straight wire carrying a current of \(12 \mathrm{~A}\) is bent into a semi-circular arc of radius \(2 \mathrm{~cm}\) as shown in the figure. Then the magnetic field due to the straight segments at the centre of the arc is

The incentre of triangle formed by the lines \(x+y=1, x=1, y=1\) is

A \(40 \% \mathrm{HCl}\) solution has density \(1.2 \mathrm{~g} \mathrm{~mL}^{-1}\). The molarity of the solution is nearly ____