The formation of \(\mathrm{O}_{2}^{+}\left[\mathrm{PtF}_{6}\right]^{-}\)is basis for the formation of xenon fluorides. This is because

For the reaction, \(\mathrm{H}_2(g)+\mathrm{I}_2(g) \rightleftharpoons 2 \mathrm{HI}(g)\) the position of equilibrium can be shifted to the right by

Which of the following is incorrect?

The complex which does not show optical isomerism is

Given below are 4 molecular species/ions. Identify the species/ion which exhibits diamagnetic nature.
\([\mathrm{A}]=\mathrm{N}_2^{+} \quad[\mathrm{B}]=\mathrm{O}_2^{-} \quad[\mathrm{C}]=\mathrm{B}_2 \quad[\mathrm{D}]=\mathrm{C}_2\)

The following results were obtained during study of the reaction \(2 \mathrm{NO}(\mathrm{g})+\mathrm{Cl}_2(\mathrm{~g}) \rightarrow 2 \mathrm{NOCl}(\mathrm{g})\). Determine the value of \([\mathrm{X}]\) in \(\mathrm{mol} / \mathrm{L}\)
\(\begin{array}{|c|c|c|c|} \hline \text{Experiment} & \text{[NO] mol/L} & \left[\mathrm{Cl}_2\right] \text{ mol/L} & \text{Initial rate of formation. [NOCl] mol/L/min} \\ \hline \text{I} & 0.2 & 0.2 & 6.0 \times 10^{-3} \\ \hline \text{II} & 0.2 & 0.4 & 2.4 \times 10^{-2} \\ \hline \text{III} & 0.4 & 0.2 & 1.2 \times 10^{-2} \\ \hline \text{IV} & X & 0.6 & 1.35 \times 10^{-1} \\ \hline \end{array}\)

Which of the following chemicals does not liberate hydrogen gas on reaction with aluminium metal?

If the area of the auxillary circle of the ellipse \(\frac{x^{2}}{a^{2}}+\frac{y^{2}}{b^{2}}=1(a>b)\) is twice the area of the ellipse, then the eccentricity of the ellipse is

\(\int \sqrt{2ax - x^2}\ dx =\)

Thomas slag is

The degree of the differential equation \(\left(1+\left(\frac{d y}{d x}\right)^{2}\right)^{3 / 4}=\left(\frac{d^{2} y}{d x^{2}}\right)^{1 / 3}\) is

In Young's double slit experiment, if monochromatic light used is replaced by white light, then

The current in a simple series circuit is \(5.0 \mathrm{~A}\).
When an additional resistance of \(2.0 \Omega\) is inserted, the current drops to \(4.0 \mathrm{~A}\). The original resistance of the circuit (in \(\Omega\) ) is