Ethanol, when warmed with iodine and sodium carbonate gives a yellow coloured crystalline solid, which is used in preparation of antiseptic ointments. The yellow coloured crystalline substance is

In the equilibrium, \(2 \mathrm{NH}_3 \rightleftharpoons \mathrm{~N}_2+3 \mathrm{H}_2\), 6 mol of \(\mathrm{NH}_3\) is taken in 10 L flask. If concentration of \(\mathrm{N}_2\) at equilibrium is \(x\), then concentration of \(\mathrm{NH}_3\) at equilibrium is

Given below are 4 equations showing Molar conductivities at infinite dilution of various electrolytes. Which one of them represents the correct equation?
\(\begin{aligned}
& \left(\Lambda_m^0\right)_{N a B r}-\left(\Lambda_m^0\right)_{N a C l}=\left(\Lambda_m^0\right)_{\mathrm{KCl}}-\left(\Lambda_m^0\right)_{\mathrm{KBr}} \\
& \left(\Lambda_m^0\right)_{\mathrm{HCl}}+\left(\Lambda_m^0\right)_{\mathrm{KOH}}-\left(\Lambda_m^0\right)_{\mathrm{KCl}}=\left(\Lambda_m^0\right)_{\mathrm{H}_2 \mathrm{O}} \\
& \left(\Lambda_m^0\right)_{\mathrm{KBr}}-\left(\Lambda_m^0\right)_{\mathrm{NaBr}}=\left(\Lambda_m^0\right)_{\mathrm{NaBr}}-\left(\Lambda_m^0\right)_{\mathrm{Nal}} \\
& \left(\Lambda_m^0\right)_{N H_4 \mathrm{Cl}}-\left(\Lambda_m^0\right)_{\mathrm{NH}_4 \mathrm{NO}_3}=\left(\Lambda_m^0\right)_{N H_4 \mathrm{Cl}}-\left(\Lambda_m^0\right)_{N H 4 B r}
\end{aligned}\)

Arrange the following in the order of increasing reactivity towards \(\mathrm{SN}_{\mathrm{2}}\) reactions.
\(\begin{array}{ll}
\left(\mathrm{CH}_3\right)_3 \mathrm{CCH}_2 \mathrm{Br}(\mathrm{P}) ; & \\\mathrm{CH}_3\left(\mathrm{CH}_2\right)_3 \mathrm{Br}(\mathrm{Q}) ; &\\
\mathrm{CH}_3 \mathrm{CH}_2-\mathrm{CH}\left(\mathrm{CH}_3\right)-\mathrm{CH}_2 \mathrm{Br}(\mathrm{R}) ; & \\\left(\mathrm{CH}_3\right)_2 \mathrm{CHCH}_2 \mathrm{CH}_2 \mathrm{Br}(\mathrm{S})
\end{array}\)

In the chemical reaction, \(\mathrm{N}_{2}+3 \mathrm{H}_{2} \rightleftarrows 2 \mathrm{NH}_{3}\) at equilibrium point.

The time required for \(100 \%\) completion of zero order reaction is

In the titration of mohr salt against \(\mathrm{KMnO}_{4}\), the indicator used is

\(\left(2^{4 n}-1\right)\) is divisible by

Given, 5 line segments of lengths \(2,3,4,5,6\) units. Then, the number of triangles that can be formed by joining these segments is

The value of the integral \(\int_{0}^{\pi / 2}\left(\sin ^{100} x-\cos ^{100} x\right) d x\) is

The complex number \(\dfrac{1+7 i}{(2-i)^2}\) lies in

Benzene can be obtained by heating either benzoic acid with \(X\) or phenol with \(Y . X\) and \(Y\) are respectively

Which of the following can participate in linkage isomerism?