Identify the correct statement for the below given transformation.

The correct sequence of electron gain enthalpy of the elements listed below is _______. \(A\). \(\mathrm{Ar}\)     \(B\). \(\mathrm{Br}\)     \(C. F\)     \(D\). \(\mathrm{S}\) Choose the most appropriate from the options given below:

\(6.023 \times 10^{22}\) molecules are present in \(10 \,g\) of a substance \('x'.\) The molarity of a solution containing \(5\, g\) of substance \({ }^{\prime} x ^{\prime}\) in \(2\, L\) solution is.......... \(\times 10^{-3}\)

According to molecular orbital theory, which of the following is true with respect to \(Li_2^ + \) and \(Li_2^ - \) ?

The major product of the following reaction is \(C{H_3}CH = CHC{O_2}C{H_3}\,\xrightarrow{{LiAl{H_4}}}\) 

Consider the following reaction.

Statement I : In the above reaction, product formed will be a mixture of benzyl alcohol and iodobenzene.
Statement II : In the above reaction, the \(-\text{O}-\text{CH}_2-\) bond is cleaved to give the product.
In the light of the above statements, choose the correct answer from the options given below :

Choose the correct tests with respective observations.
(A) \(\mathrm{CuSO}_4\) (acidified with acetic acid) \(+ \mathrm{K}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right] \rightarrow\) Chocolate brown precipitate.
(B) \(\mathrm{FeCl}_3+\mathrm{K}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right] \rightarrow\) Prussian blue precipitate.
(C) \(\mathrm{ZnCl}_2+\mathrm{K}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right]\), neutralised with \(\mathrm{NH}_4 \mathrm{OH}\) \(\rightarrow\) White or bluish white precipitate.
(D) \(\mathrm{MgCl}_2+\mathrm{K}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right] \rightarrow\) Blue precipitate.
(E) \(\mathrm{BaCl}_2+\mathrm{K}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right]\), neutralised with NaOH \(\rightarrow\) White precipitate.
Choose the correct answer from the options given below :

Let \(A=\left[\begin{array}{cc}0 & -2 \\ 2 & 0\end{array}\right]\). If \(M\) and \(N\) are two matrices given by \(M =\sum \limits_{ k =1}^{10} A ^{2 k }\) and \(N =\sum \limits_{ k =1}^{10} A ^{2 k -1}\) then \(MN ^{2}\) is

Five numbers \(x _{1}, x _{2}, x _{3}, x _{4}, x _{5}\) are randomly selected from the numbers \(1,2,3, \ldots \ldots, 18\) and are arranged in the increasing order \(\left( x _{1}< x _{2}< x _{3}< x _{4}< x _{5}\right)\). The probability that \(x_{2}=7\) and \(x_{4}=11\) is

\(10.30\; \mathrm{mg}\) of \(\mathrm{O}_{2}\) is dissolved into a liter of sea water of density \(1.03\; \mathrm{g} / \mathrm{mL}\). The concentration of \(\mathrm{O}_{2}\) in \(ppm\) is

Let \( A=\begin{bmatrix}0&2&-3\\ -2&0&1\\ 3&-1&0\end{bmatrix} \) and B be a matrix such that \( B(I-A)=I+A \). Then the sum of the diagonal elements of \( B^{T}B \) is equal to:

The area of the region \(\left\{(x, y): y^2 \leq 4 x, x<4, \frac{x y(x-1)(x-2)}{(x-3)(x-4)}>0, x \neq 3\right\}\) is

The coefficient of \(x^{70}\) in \(x^2(1+x)^{98}+x^3(1+x)^{97}+\) \(x^4(1+x)^{96}+\ldots \ldots . .+x^{54}(1+x)^{46}\) is \({ }^{99} \mathrm{C}_p-{ }^{46} \mathrm{C}_{\mathrm{q}}\). Then a possible value to \(\mathrm{p}+\mathrm{q}\) is :