Which of the following combinations can be used to synthesised ethanol?

Identify the products C, D and F formed in the following sets of reactions.

Which of the following reaction taking place in the blast furnace is endothermic?

Match \(\mathrm{A}, \mathrm{B}, \mathrm{C}\) and D with the appropriate functions given.
\(\begin{array}{|l|l|l|l|} \hline & \text { Column I } & & \text { Functions } \\ \hline \text { A } & \text { Oxidoreductase } & \text { P } & \text { Malfunctioning leads to Addison's disease. } \\ \hline \text { B } & \text { Phosphodiester bonds } & \text { Q } & \text { Regulates responses to external stimuli. } \\ \hline \text { C } & \text { Adrenal cortex } & \text { R } & \text { Catalyses glycolysis. } \\ \hline \text { D } & \text { Epinephrine. } & \text { S } & \text { Links nucleotides together. } \\ \hline \end{array}\)

Ozone in stratosphere is depleted by

Geometrical isomerism is shown by

From the given aqueous solutions below, arrange them in the order of their increasing boiling points.
(i) \(10^{-4} \mathrm{M} \mathrm{NaCl}\)
(ii) \(10^{-3} \mathrm{M}\) urea
(iii) \(10^{-3} \mathrm{M} \mathrm{MgCl}_2\)
(iv) \(10^{-3} \mathrm{M} \mathrm{NaCl}\)

With reference to the two statements Assertion and Reason, choose the correct option.
Assertion: The order of reactivity towards S\(_N\)1 reaction is: C\(_6\)H\(_5\[-\)CH\(_2\)Br > (CH\(_3\))\(_3\]-\)C\(-\)Br > (CH\(_3\))\(_2$$-\)CH\(-\)Br.
Reason: Among the given 3 compounds the Benzyl carbocation formed is the most stable while Isopropyl carbocation is the least stable one.

A current of 1.5 A is passed for 2 hours through an aqueous solution of \(\mathrm{Pd} \mathrm{X}_{\mathrm{n}}\) where X is a monovalent anion. During the electrolysis process 2.977 g of Palladium metal gets deposited at the cathode. Calculate the charge on Pd ions. (Atomic mass of Pd \(=106.4 \mathrm{~g} / \mathrm{mol}\) ).

In a deuterium-tritium fusion reaction given by \({ }_1^2 \mathrm{H}+{ }_1^3 \mathrm{H} \rightarrow{ }_2^4 \mathrm{He}+{ }_0^1 n\) the mass defect is given as 0.0188 u . The total energy released in the fusion reaction is:

If \(A=\left|\begin{array}{lll}a_{1} & b_{1} & c_{1} \\ a_{2} & b_{2} & c_{2} \\ a_{3} & b_{3} & c_{3}\end{array}\right|\) and \(B=\left|\begin{array}{ccc}c_{1} & c_{2} & c_{3} \\ a_{1} & a_{2} & a_{3} \\ b_{1} & b_{2} & b_{3}\end{array}\right|\) then

The cathode reaction in the dry cell will be

A plane electromagnetic wave of frequency \(20 \mathrm{~MHz}\) travels through a space along \(x\)-direction. If the electric field vector at a certain point in space is \(6 \mathrm{~Vm}^{-1}\), then what is the magnetic field vector at that point?