Three flasks of equal volumes contain ${\mathrm{CH}}_4,{\mathrm{CO}}_2\&{\mathrm{Cl}}_2$ gases respectively. They will contain equal number of molecules if

Identify the product of the following reaction.

The initial rates of decrease of \(\mathrm{I}_2\) in acetone - iodine reaction catalysed by \(\mathrm{H}^{+}\) are given in the table.
\(\begin{array}{|c|c|c|c|c|}
\hline \begin{array}{c}
\text { Experiment } \\
\end{array} & \begin{array}{c}
\text { Initial } \\
{\left[\mathrm{I}_2\right]} \\
\left(\mathrm{mol} \mathrm{L}^{-1}\right)
\end{array} & \begin{array}{c}
\text { Initial } \\
{\left[\mathrm{H}^{+}\right]} \\
\left(\mathrm{mol} \mathrm{L}^{-1}\right)
\end{array} & \begin{array}{c}
\text { Initial } \\
{\left[\mathrm{CH}_3 \mathrm{COCH}_3\right]} \\
\left(\mathrm{mol} \mathrm{L}^{-1}\right)
\end{array} & \begin{array}{c}
\text { Initial rate of decrease of } \mathrm{I}_2 \\
\left(\mathrm{mol} \mathrm{L}^{-1} \mathrm{~s}^{-1}\right)
\end{array} \\
\hline 1 & 0.01 & 0.1 & 0.1 & 0.096 \\
2 & 0.01 & 0.2 & 0.1 & 0.192 \\
3 & 0.02 & 0.2 & 0.1 & 0.192 \\
4 & 0.01 & 0.2 & 0.2 & 0.384 \\
\hline
\end{array}\)
The order with respect to \(\mathrm{I}_2, \mathrm{H}^{+}\), acetone and total order of the reaction respectively are:

Which one of the following statements is not correct?

The molar heats of fusion and vapourisation of benzene are 10.9 and \(31.0 \mathrm{~kJ} \mathrm{~mol}^{-1}\) respectively. The changes in entropy for the solid \(\rightarrow\) liquid and liquid \(\rightarrow\) vapour transitions for benzene are \(x\) and \(y . \mathrm{JK}^{-1} \mathrm{~mol}^{-1}\), respectively. The value of \((y-x)\left(\right.\) in \(\left.\mathrm{JK}^{-1} \mathrm{~mol}^{-1}\right)\) is (At 1 atm, benzene melts at \(5.5^{\circ} \mathrm{C}\) and boils at \(80^{\circ} \mathrm{C}\) )

If the concentration of \(\mathrm{Ag}^{+}\)ions in the saturated solution of \(\mathrm{Ag}_2 \mathrm{CO}_3\) is \(1.20 \times 10^{-14} \mathrm{~mol} \mathrm{~L}^{-1}\), then find the solubility product of \(\mathrm{Ag}_2 \mathrm{CO}_3\).

Sugar present in DNA is

How many of the following polymers given, come under the category of condensation polymers? Bakelite, Teflon, Nylon-6, Dacron, Polyisoprene, Melamine, Neoprene

A train approaching a railway crossing at a speed of $120 \mathrm{kmph}$ sounds a whistle of frequency $576 \mathrm{Hz}$, when it is $288 \mathrm{m}$ away from the crossing. The frequency heard by the observer standing on the road perpendicular to the track from the crossing at a distance of $384 \mathrm{m}$ is (Speed of sound in air $=340 \mathrm{m} {\mathrm{s}}^{-1}$)

A thin uniform rod of length \(L\) is resting against a wall and the floor as shown in the figure. Its lower end \(A\) is pulled towards left with a constant velocity \(v\). Then the downward velocity \(v^{\prime}\) of the other end \(B\) when the rod makes an angle \(\theta\) with the floor is

If \(Q\) is the inverse point of \(P(-1,1)\) with respect to the circle \(x^2+y^2-2 x+2 y=0\), then the line containing \(Q\) is

Two spheres A & B of radii \(4 \mathrm{~cm} \& 6 \mathrm{~cm}\) are given charges of \(80 \mu \mathrm{C} \& 40 \mu \mathrm{C}\) respectively. If they are connected by a fine wire, the amount of charge flowing from one to the other is

The relative basic strength of the compounds is correctly shown in the option.