Alkaline oxidative fusion of \(\mathrm{MnO}_2\) gives \("A"\) which on electrolytic oxidation in alkaline solution produces \(B. A\) and \(B\) respectively are _______.

To inhibit the growth of tumours, identify the compounds used from the following: \((A)\) \(EDTA\)  \((B)\) Coordination Compounds of \(Pt\)  \((C)\) \(D-\)Penicillamine  \((D)\) Cis - Platin Choose the correct answer from the option given below:

The correct electronic configuration and spin only magnetic moment (BM) of \(Gd ^{3+}( Z =64)\), respectively, are 

Given below are two statements : one is labelled as Assertion \((A)\) and the other is labelled as Reason \((R)\). Assertion \((A)\) : Experimental reaction of \(CH _{3} Cl\) with aniline and anhydrous \(AlCl _{3}\) does not give \(o\) and \(p-methylaniline\). Reason \((R)\) : The - \(NH _{2}\) group of aniline becomes deactivating because of salt formation with anhydrous \(AlCl _{3}\) and hence yields \(m\)-methyl aniline as the product. In the light of the above statements, choose the most appropriate answer from the options given below.

The major product obtained in the photo catalysed bromination of \(2-\) methylbutane is

Two complexes \([Cr(H_2O)_6]Cl_3\, (A)\) and \([Cr(NH_3)_6]Cl_3\, (B)\) are violet and yellow coloured respectively. The incorrect statement regarding them is

When \(400\, \mathrm{~mL}\) of \(0.2\, \mathrm{M} \,\mathrm{H}_{2} \mathrm{SO}_{4}\) solution is mixed with \(600\, \mathrm{~mL}\) of \(0.1\, \mathrm{M} \,\mathrm{NaOH}\) solution, the increase in temperature of the final solution is \(....\,\times 10^{-2} \,\mathrm{~K}\). (Round off to the Nearest Integer). \(\left[\right.\) Use \(: \mathrm{H}^{+}(\mathrm{aq})+\mathrm{OH}^{-}(\mathrm{aq}) \rightarrow \mathrm{H}_{2} \mathrm{O}: \Delta_{\mathrm{\gamma}} \mathrm{H}=-57.1\, \mathrm{k} \mathrm{J} \,\mathrm{mol}^{-1}\) Specific heat of \(\mathrm{H}_{2} \mathrm{O}=4.18 \mathrm{Jk}^{-} \mathrm{g}^{-}\) density of \(\mathrm{H}_{2} \mathrm{O}=1.0\, \mathrm{~g} \mathrm{~cm}^{-3}\) Assume no change in volume of solution on mixing.]

An infinite plane sheet of charge having uniform surface charge density \(+\sigma_5 \mathrm{C} / \mathrm{m}^2\) is placed on \(\mathrm{x}-\mathrm{y}\) plane. Another infinitely long line charge having uniform linear charge density \(+\lambda_e \mathrm{C} / \mathrm{m}\) is placed at \(z=4 \mathrm{~m}\) plane and parallel to \(y\)-axis. If the magnitude values \(\left|\sigma_s\right|=2\left|\lambda_{\mathrm{e}}\right|\) then at point \((0,0,2)\), the ratio of magnitudes of electric field values due to sheet charge to that of line charge is \(\pi \sqrt{\mathrm{n}}: 1\). The value of \(n\) is _______.

The given reaction can occur in the presence of: \((1)\) Bromine water        \((2)\) \(\mathrm{Br}_{2}\) in \(\mathrm{CS}_{2}, 273 \mathrm{~K}\)       \((3)\) \(\mathrm{Br}_{2} / \mathrm{FeBr}_{3}\)    \((4)\) \(\mathrm{Br}_{2}\) in \(\mathrm{CHCl}_{3}, 273 \,\mathrm{~K}\) Choose the correct answer from the options given below:

Given below are two statements : Statement \(I:\) If the Brewster's angle for the light propagating from air to glass is \(\theta_{ B }\), then Brewster's angle for the light propagating from glass to air is \(\frac{\pi}{2}-\theta_B\). Statement \(II:\) The Brewster's angle for the light propagating from glass to air is \(\tan ^{-1}\left(\mu_{ g }\right)\) where \(\mu_{ g }\) is the refractive index of glass. In the light of the above statements, choose the correct answer from the options given below :

Rate of dehydration of alcohols follows the order

Given below are two statements:
Statement I: Each electron in \(e_g\) orbitals destabilizes the orbitals by \(+0.6\Delta_o\) and each electron in the \(t_{2g}\) orbitals stabilizes the orbitals by \(-0.4\Delta_o\) in an octahedral field on the basis of crystal field theory.
Statement II: All the d-orbitals of the transition metals have the same energy in their free atomic state but when a complex is formed the ligands destroy the degeneracy of these orbitals on the basis of crystal field theory.
In the light of the above statements, choose the correct answer from the options given below

Consider two containers \(A\) and \(B\) containing monoatomic gases at the same Pressure \((P)\), Volume \((V)\) and Temperature \((T)\). The gas in \(A\) is compressed isothermally to \(\frac{1}{8}\) of its original volume while the gas \(B\) is compressed adiabatically to \(\frac{1}{8}\) of its original volume. The ratio of final pressure of gas in \(B\) to that of gas in \(A\) is ...........