For a reaction, \(\mathrm{N}_2 \mathrm{O}_{5(\mathrm{~g})} \rightarrow 2 \mathrm{NO}_{2(\mathrm{~g})}+\frac{1}{2} \mathrm{O}_{2(\mathrm{~g})}\) in a constant volume container, no products were present initially. The final pressure of the system when \(50 \%\) of reaction gets completed is _______.

Three complexes, \([CoCl(NH_3)_5]^{2+}\, (I)\), \([Co(NH_3)_5H_2O]^{3+}\, (II)\) and \([Co(NH_3)_6]^{3+}\, (III)\) Absorb light in the visible region. The correct order of the wavelength of light absorbed by them is

Consider the following elements. Which of the following is/are true about \(\mathrm{A}^{\prime}, \mathrm{B}^{\prime}, \mathrm{C}^{\prime}\) and \(\mathrm{D}^{\prime}\) ? \(A\). Order of atomic radius: \(\mathrm{B}^{\prime}<\mathrm{A}^{\prime}<\mathrm{D}^{\prime}<\mathrm{C}^{\prime}\) \(B\). Order of metallic character: \(\mathrm{B}^{\prime}<\mathrm{A}^{\prime}<\mathrm{D}^{\prime}<\mathrm{C}^{\prime}\) \(C\). Size of the element : \(\mathrm{D}^{\prime}<\mathrm{C}^{\prime}<\mathrm{B}^{\prime}<\mathrm{A}^{\prime}\) \(D\). Order of ionic radius : \(\mathrm{B}^{\prime+}<\mathrm{A}^{\prime+}<\mathrm{D}^{\prime+}<\mathrm{C}^{\prime+}\) Choose the correct answer from the options given below :

The compounds \(A\) and \(B\) in the following reaction are, respectively \(Benzene\) \(\xrightarrow{HCHO+HCl}\,A\)\(\xrightarrow{AgCN}\,B\)

Which one of the following bases is not present in \(DNA\) ?

The number of \(P-OH\) bonds and the oxidation state of phosphorus atom in pyrophosphoric acid \((H_4P_ 2O_7)\) respectively are

An organic compound \(A\) upon reacting with \(NH_3\) gives \(B.\) On heating \(B\) gives \(C.\) \(C\) in presence of \(KOH\) reacts with \(Br_2\) to given \(CH_3CH_2NH_2. A\) is :

The order of reactivity of the given haloalkanes towards nucleophile is

The ratio of momentum of the photons of the \(1^{st}\) and \(2^{nd}\) line of Balmer series of Hydrogen atoms is \(\alpha/\beta\). The possible values of \(\alpha\) and \(\beta\) are:-

The largest value of \(a,\) for which the perpendicular distance of the plane containing the lines \(\vec{r}=(\hat{i}+\hat{j})+\lambda(\hat{i}+a \hat{j}-\hat{k})\) and \(\vec{r}=(\hat{i}+\hat{j})+\mu(-\hat{i}+\hat{j}-a \hat{k})\) from the point \((2,1,4)\) is \(\sqrt{3}\), is\(...\)

A parallel plate capacitor is having separation between plates \(0.885\) mm. It has a capacitance of \(1\,\mu\)F when the space between the plates is filled with an insulating material of resistivity \(1\times 10^{13}\,\Omega\)m and resistance \(17.7\times 10^{14}\,\Omega\). Relative permittivity of the insulating material is \(\alpha\times 10^7\). The value of \(\alpha\) is ________. (Take permittivity of free space \(=8.85\times 10^{-12}\) F/m)

Match List \(I\) with List \(II\).Choose the correct answer from the options given below :

Given below are two statements: Statement\(- I\) : Susceptibilities of paramagnetic and ferromagnetic substances increase with decrease in temperature. Statement\(- II\): Diamagnetism is a result of orbital motions of electrons developing magnetic moments opposite to the applied magnetic field. Choose the \(CORRECT\) answer from the options given below : -