An octahedral complex with the formula \(\mathrm{CoCl}_3 \mathrm{nNH}_3\) upon reaction with excess of \(\mathrm{AgNO}_3\) solution given 2 moles of \(\mathrm{AgCl}\). Consider the oxidation state of Co in the complex is ' \(x\) '. The value of ' \(\mathrm{x}+\mathrm{n}\) ' is _______.

The increasing order of the boiling points for the following compounds is \(\mathop {{C_2}{H_5}OH}\limits_{\left( I \right)} \)    \(\mathop {{C_2}{H_5}Cl}\limits_{\left( {II} \right)} \)   \(\mathop {{C_2}{H_5}C{H_3}}\limits_{\left( {III} \right)} \)   \(\mathop {{C_2}{H_5}OC{H_3}}\limits_{\left( {IV} \right)} \)

Identify the correct pair having amino acid (A) and the hormone (B) that is iodinated derivative of the amino acid (A).
(T and Y represent one letter code for amino acids)

Amino acid (A)	Hormone (B)

The statement that is \(INCORRECT\) about the interstitial compound is

The d- electronic configuration of an octahedral Co(II) complex having magnetic moment of 3.95 BM is _______.

The Wurtz-Fittig reaction involves condensation of

It is noticed that \( Pb^{2+} \) is more stable than \( Pb^{2+} \) but \( Sn^{2+} \) is less stable than \( Sn^{4+} \). Observe the following reactions:
\( PbO_{2} + Pb \rightarrow 2PbO; \Delta_{r}G^{\circ} (1) \)
\( SnO_{2} + Sn \rightarrow 2SnO; \Delta_{r}G^{\circ} (2) \)
Identify the correct set from the following.

The magnetic field vector of an electromagnetic wave is given by \({B}={B}_{o} \frac{\hat{{i}}+\hat{{j}}}{\sqrt{2}} \cos ({kz}-\omega {t})\); where \(\hat{i}, \hat{j}\) represents unit vector along \({x}\) and \({y}\)-axis respectively. At \(t=0\, {s}\), two electric charges \(q_{1}\) of \(4\, \pi\) coulomb and \({q}_{2}\) of \(2 \,\pi\) coulomb located at \(\left(0,0, \frac{\pi}{{k}}\right)\) and \(\left(0,0, \frac{3 \pi}{{k}}\right)\), respectively, have the same velocity of \(0.5 \,{c} \hat{{i}}\), (where \({c}\) is the velocity of light). The ratio of the force acting on charge \({q}_{1}\) to \({q}_{2}\) is :-

Consider the following statements about manganate and permanganate ions. Identify the correct statements:
A. The geometry of both manganate and permanganate ions is tetrahedral.
B. The oxidation states of Mn in manganate and permanganate are +7 and +6, respectively.
C. Oxidation of \(Mn(II)\) salt by peroxodisulphate gives manganate ion as the final product.
D. Manganate ion is paramagnetic and permanganate ions is diamagnetic.
E. Acidified permanganate ion reduces oxalate, nitrite and iodide ions.
Choose the correct answer from the options given below:

The major organic compound formed by the reaction of \(1, 1, 1-\) trichloroethane with silver powder is :

In the figure, \(\theta_1+\theta_2=\frac{\pi}{2}\) and \(\sqrt{3}(B E)=4(A B)\). If the area of \(\triangle CAB\) is \(2 \sqrt{3}-3\) unit \(^2\), when \(\frac{\theta_2}{\theta_1}\) is the largest, then the perimeter (in unit) of \(\triangle CED\) is equal to \(...........\).

The wavelength of spectral line obtained in the spectrum of \(LI^{2+}\) ion, when the transition takes place between two levels whose sum is 4 and difference is 2, is

In an examination, there are \(5\) multiple choice questions with \(3\) choices, out of which exactly one is correct There are \(3\) marks for each correct answer, \(-2\) marks for each wrong answer and \(0\) mark if the question is not attempted. Then, the number of ways a student appearing in the examination gets \(5\) marks is. . . . .  ...  . .