Given below are two statements, one is labelled as Assertion \(A\) and the other is labelled as Reason \(R\). Assertion \(A\) : Order of acidic nature of the following compounds is \(A > B > C\). \(image\) Reason \(R\) : Fluoro is a stronger electron withdrawing group than Chloro group. In the light of the above statements, choose the correct answer from the options given below:

Which among the following react with Hinsberg's reagent?

Choose the correct answer from the options given below:

The reaction rate for the reaction \(\left[\mathrm{PtCl}_{4}\right]^{2-}+\mathrm{H}_{2} \mathrm{O} \rightleftharpoons\left[\mathrm{Pt}\left(\mathrm{H}_{2} \mathrm{O}\right) \mathrm{Cl}_{3}\right]^{-}+\mathrm{Cl}^{-}\) was measured as a function of concentrations of different species. It was observed that \(\frac{-\mathrm{d}\left[\left[\mathrm{PtCl}_{4}\right]^{2-}\right]}{\mathrm{dt}}=4.8 \times 10^{-5}\left[\left[\mathrm{PtCl}_{4}\right]^{2-}\right]-2.4 \times10^{-3}\)
\(\left[\left[\mathrm{Pt}\left(\mathrm{H}_{2} \mathrm{O}\right) \mathrm{Cl}_{3}\right]^{-}\right]\left[\mathrm{Cl}^{-}\right]\) where square brackets are used to denote molar concentrations. The equilibrium constant \(\mathrm{K}_{\mathrm{c}}=....\). (Nearest integer)

\(298 \mathrm{~K}\) It could be increased by _______.

The pH and conductance of a weak acid (HX) was found to be 5 and \( 4 \times 10^{-5} \) S, respectively. The conductance was measured under standard condition using a cell where the electrode plates having a surface area of \( 1 \, cm^{2} \) were at a distance of 15 cm apart. The value of the limiting molar conductivity is ......... \( S \, m^{2} \, mol^{-1} \). (nearest integer) (Given: degree of dissociation of the weak acid (a) \(\ll 1\) )

The de-Broglie wavelength of a particle of mass \(6.63\,g\) moving with a velocity of \(100\,ms^{-1}\) is

\(25.0\,mL\) of \(0.050\,M\,Ba \left( NO _3\right)_2\) is mixed with \(25.0\,mL\) of \(0.020\,M\) \(NaF\),\(K _{ sp }\) of \(BaF _2\) is \(0.5 \times 10^{-6}\) at \(298\,K\). The ratio of \(\left[ Ba ^{2+}\right]\left[F^{-}\right]^2\) and \(K _{ sp }\) is \(.......\). (Nearest integer)

\(15\, mL\) of aqueous solution of \(Fe ^{2+}\) in acidic medium completely reacted with \(20\, mL\) of \(0.03\, M\) aqueous \(Cr _{2} O _{7}^{2-}\) The molarity of the \(Fe ^{2+}\) solution is ........... \(\times 10^{-2} M\) (Round off to the Nearest Integer).

Let \(A=\{1,2,3, \ldots ,100\}\). Let \(R\) be a relation on A defined by \((x, y) \in R\) if and only if \(2 x=3 y\). Let \(R_1\) be a symmetric relation on \(A\) such that \(\mathrm{R} \subset \mathrm{R}_1\) and the number of elements in \(\mathrm{R}_1\) is \(\mathrm{n}\). Then, the minimum value of \(n\) is ...........

The region between \(y = 0\) and \(y = d\) contains a magnetic field \(\vec B = B\hat z\) A particle of mass \(m\) and charge \(q\) enters the region with a velocity \(\vec v = v\hat i\). If \(d = \frac{{mv}}{{2qB}}\) , the acceleration of the charged particle at the point of its emergence at the other side is

Earth has mass 8 times and radius 2 times that of a planet. If the escape velocity from the earth is \(11.2 \mathrm{~km} / \mathrm{s}\), the escape velocity in \(\mathrm{km} / \mathrm{s}\) from the planet will be :

Let \(\mathrm{L}_1: \frac{x-1}{2}=\frac{y-2}{3}=\frac{z-3}{4}\) and \(\mathrm{L}_2: \frac{x-2}{3}=\frac{y-4}{4}=\frac{z-5}{5}\) be two lines. Then which of the following points lies on the line of the shortest distance between \(L_1\) and \(L_2\) ?

A wheatstone bridge is initially at room temperature and all arms of the bridge have same value of resistances ( \(R_1=R_2=R_3=R_4\) ). When \(R_3\) resistance is heated to some temperature, its resistance value has gone up by \(10 \%\). The potential difference \(\left( V _{ a }- V _{ b }\right)\) (after \(R _3\) is heated) is ___________ V.