Find the observed EMF of the cell \(\mathrm{Cd}\left|\mathrm{Cd}^{2+}(0.01 \mathrm{M}) \| \mathrm{Cd}^{2+}(0.01 \mathrm{M})\right| \mathrm{Cd}\) under conditions, internal resistance of \(4 \Omega\) and producing a current of \(0.15 \mathrm{~A}\).
(Given, \(E^{\circ} \mathrm{Cu}^{2+} / \mathrm{Cu}=0.35 \mathrm{~V}\)
and \(\quad E_{\mathrm{Cd}^{2+} / \mathrm{Cd}}^{\circ}=-0.4 \mathrm{~V}\) )

For the gaseous reactions (I) and (II), the equilibrium constants are \(X\) and \(Y\) respectively.
I. \(\frac{1}{2} \mathrm{~N}_2(g)+\mathrm{O}_2(g) \rightleftharpoons \mathrm{NO}_2(g)\)
II. \(2 \mathrm{NO}_2(g) \rightleftharpoons \mathrm{N}_2 \mathrm{O}_4(g)\)
Using the above reactions the equilibrium constant \(Z\) for the reaction (III) given below is
III. \(\mathrm{N}_2 \mathrm{O}_4(g) \rightleftharpoons \mathrm{N}_2(g)+2 \mathrm{O}_2(g)\)

The BOD values for pure water and highly polluted water are respectively

The number of \(120^{\circ}, \mathrm{Cl}-\mathrm{P}-\mathrm{Cl}\) angles in phosphorus pentachloride are

If for the reaction \(\mathrm{CCl}_4(\mathrm{~g}) \rightarrow \mathrm{C}(\mathrm{g})+4 \mathrm{Cl}(\mathrm{g})\) the following data is given
\(\begin{aligned} & \Delta_{\mathrm{vap}} \mathrm{H}^\theta \mathrm{CCl}_4(\mathrm{l})=30 \mathrm{~kJ} \mathrm{~mol}^{-1} \text {, vap = vaporization } \\ & \Delta_{\mathrm{f}} \mathrm{H}^\theta{ }_{\mathrm{CCl}_4}=-136.0 \mathrm{~kJ} \mathrm{~mol}^{-1}, \mathrm{f}=\text { formation } \\ & \Delta_{\mathrm{a}} \mathrm{H}_{\mathrm{C}}^{\mathrm{q}}=714.0 \mathrm{~kJ} \mathrm{~mol}^{-1}, \mathrm{a}=\text { atomization } \\ & \Delta_{\mathrm{a}} \mathrm{H}^\theta \mathrm{Cl}_2=242.0 \mathrm{~kJ} \mathrm{~mol}^{-1}, \mathrm{a}=\text { atomization }\end{aligned}\)
the bond mean enthalpy of \(\mathrm{C}-\mathrm{Cl}\) in \(\mathrm{CCl}_4(\mathrm{l})\) is

Which of the following compounds are formed, when boron trichloride is treated with water?

Calculate the amount of \(\mathrm{NO}_2\) required for producing \(4 \mathrm{~g}\) moles of \(\mathrm{HNO}_3\) as per the chemical reaction, \(3 \mathrm{NO}_2+\mathrm{H}_2 \mathrm{O} \longrightarrow 2 \mathrm{HNO}_3+\mathrm{NO}\). Given, the gram molecular weights of di-nitrogen and di-oxygen gases are \(28 \mathrm{~g}\) and \(32 \mathrm{~g}\) respectively.

When a number of charged liquid drops coalesce, which of the following quantity does not change?

If the lines \(x^2+2 x y-35 y^2-4 x+44 y-12=0\) and \(5 x+\lambda y-8=0\) are concurrent, then the value of \(\lambda\) is

Which of the following polymer is biodegradable?

What are X and Y in the following reaction?


\(X \quad Y\)

$D,E,F$ are respectively the points on the sides $BC,CA$ and $AB$ of a $∆ABC$ dividing them in the ratio $2:3,1:2,3:1$ internally. The lines $BE$ and $CF$ intersect on the line $AD$ at $P$. If $\overrightarrow{AP}=x_1\overrightarrow{AB}+y_1·\overrightarrow{AC}$, then $x_1+y_1=$

A plane is making intercepts \(2,3,4\) on \(X, Y\) and \(Z\)-axes respectively. Another plane is passing through the point \((-1,6,2)\) and is perpendicular to the line joining the points \((1,2,3)\) and \((-2,3,4)\). Then angle between the two planes is