What is the equivalent weight of \(\mathrm{KMnO}_4\) in acidic medium? (Molecular weight of \(\mathrm{KMnO}_4=158 \mathrm{~g}\) )

Match the following.

The correct match is A B C D

The catalyst and promoter respectively used in the Haber's process of industrial synthesis of ammonia are

Which of the following is least reactive towards \(\mathrm{S}_{\mathrm{N}} 1\) reaction?

What is the effect of lanthanoid contraction in lanthanoid series of elements with increasing atomic number?

The type of bonds present in sulphuric anhydride are

The magnetic moment of the high spin complex is $5.92 \mathrm{BM}.$ What is the electronic configuration?

When some amount of heat energy is supplied to a monatomic gas, the percentage of heat energy used for increasing the internal energy of the gas \((\gamma=5 / 3)\) is

If \(f: R \rightarrow R\) and \(g: R \rightarrow R\) are given by \(f(x)=|x|\) and \(g(x)=[x]\) for each \(x \in R\), then \(\{x \in R: g(f(x)) \leq f(g(x))\}\) is equal to

The area bounded by the curve \(y=x^3-3 x^2+2 x\) and the \(X\)-axis is (in square units)

\(\mathrm{pH}\) of a buffer solution decreases by 0.02 units when \(0.12 \mathrm{~g}\) of acetic acid is added to \(250 \mathrm{~mL}\) of a buffer solution of acetic acid and potassium acetate at \(27^{\circ} \mathrm{C}\). The buffer capacity of the solution is

If \(\frac{3+2 i \sin \theta}{1-2 i \sin \theta}\) is a real number and \(0 < \theta < 2 \pi\), then \(\theta\) is equal to

With reference to the redox properties of hydrogen peroxide \(\left(\mathrm{H}_2 \mathrm{O}_2\right)\), which of these reactions are feasible? (i) \(2 \mathrm{Fe}^{2+} 2 \mathrm{H}^{+}+\mathrm{H}_2 \mathrm{O}_2 \longrightarrow 2 \mathrm{Fe}^{3+}+2 \mathrm{H}_2 \mathrm{O}\) (ii) \(2 \mathrm{MnO}_4^{-}+6 \mathrm{H}^{+}+5 \mathrm{H}_2 \mathrm{O}_2 \longrightarrow 2 \mathrm{Mn}^{2+}\) \(+8 \mathrm{H}_2 \mathrm{O}+5 \mathrm{O}_2\) (iii) \(2 \mathrm{Fe}^{2+}+\mathrm{H}_2 \mathrm{O}_2 \longrightarrow 2 \mathrm{Fe}^{3+}+2 \mathrm{OH}^{-}\) (iv)\(2 \mathrm{MnO}_4^{-}+3 \mathrm{H}_2 \mathrm{O}_2 \longrightarrow 2 \mathrm{MnO}_2+2 \mathrm{H}_2 \mathrm{O}\) \(+3 \mathrm{O}_2+2 \mathrm{OH}^{-}\)