Arrange the following compounds in the decreasing order of reactivity towards \(\mathrm{S}_{\mathrm{N}} 1\) reaction.

Based on Valence Bond Theory, match the complexes listed in Column I with the number of unpaired electrons on the central metal ion, given in Column II

No.	Complex ions	No.	Number of unpaired electrons
A	\([FeF_6]^{3-}\)	P	0
B	\([Fe(CN)_6]^{4-}\)	Q	1
C	\([Fe(H_2O)_6]^{2+}\)	R	5
D	\([Fe(CN)_6]^{3-}\)	S	4

The concentration of a reactant \(X\) decreases from 0.1 \(\mathrm{M}\) to \(0.025 \mathrm{M}\) in \(40 \mathrm{~min}\). If the reaction follows I order kinetics, the rate of the reaction when the concentration of \(X\) is \(0.01 \mathrm{M}\) will be

When common salt is added of a saturated solution of soap is precipitate(d)This is based on the principle of

Which one of the following statements is correct?

Match the reaction in Column I with the major product formed given in Column II.
\(\begin{array}{|l|l|l|} \hline & \text { Column I- Reaction/conditions } & & \text { Column II- Product } \\ \hline A & \mathrm{C}_6 \mathrm{H}_6 \xrightarrow[\substack{\text{(ii) NaOH} \\ \text{(iii) H^+}}]{\text{(i) Oleum}} & P & \text { Pentan-2-ol. } \\ \hline B & \text{Butanal } \xrightarrow[\text{(ii) } \mathrm{H}^+]{\text{(i) } \text{MeMgBr/ dry ether}} & Q & \text { 2-Hydroxybenzoic acid. } \\ \hline C & \text {2-Methylpropene } \xrightarrow[\text { (ii) } \mathrm{H}_2 \mathrm{O}_2 / \mathrm{NaOH}]{\text { (i) } \mathrm{B}_2 \mathrm{H}_6} & R & \text { Phenol } \\ \hline D & \text{Phenol } \xrightarrow[\text { (ii) } \mathrm{CO}_2, 400 \mathrm{~K}, 7 \mathrm{~atm} .]{\text { (i) } \mathrm{NaOH}} & S & \text { 2-Methylpropan-1-0 I } \\ \hline \end{array}\)

In the chemical reaction, \(\mathrm{N}_{2}+3 \mathrm{H}_{2} \rightleftarrows 2 \mathrm{NH}_{3}\) at equilibrium point.

The equivalent weight of a certain trivalent element is \(20\). Molecular weight of its oxide is

A relation \(R\) is defined from \(\{2,3,4\}\) to \(\{3,6,7,10\}\). If \(x R y \Leftrightarrow x\) and \(y\) are co prime numbers. Then range of \(R\) is

If \(A=\{4,5,9\}\) and \(B=\{1,2,4,6\}\), then \((A \cup B) \cap(B-A)\) is

In froth floatation process for the purification of ores, the particles of ore float because

What would be the products obtained when a mixture of p-Methoxy benzaldehyde and Methanal are heated with \(50 \%\) concentrated Caustic soda solution?

If \(\mathbf{u}=\mathbf{a}-\mathbf{b}, \mathbf{v}=\mathbf{a}+\mathbf{b}\), and \(|\mathbf{a}|=|\mathbf{b}|=2\), then \(|\mathbf{u} \times \mathbf{v}|\) is