What is the major product ' \(R\) ' in the following reaction sequence?

Which one of the following statements is correct?

For the following cell reaction,
\(Ag \left| Ag ^{+}\right| AgCl \left| Cl ^{\ominus}\right| Cl _2, Pt \Delta G_f^{\circ}( AgCl )\)
\(=-109 kJ / mol \Delta G_f^{\circ}\left( Cl ^{\ominus}\right)\)
\(=-129 kJ / mol \Delta G_f^{\circ}\left( Ag ^{+}\right)=78 kJ / mol\)
\(E^{\circ}\) of the cell is

For a zero-order reaction, the correct expression for rate constant \((k)\) at half-life time \(\left(t_{1 / 2}\right)\) is \(\left(R_0=\right.\) initial concentration of reactant)

Identify the option in which the molecules are arranged in the correct order of their dipole moments.

Among the following given substances, the one with zero ${\Delta }_{\mathrm{f}}\mathrm{H}°$ is

Arrange the following in the correct order of their acidic strength
\(H _2 C = CH _2 \quad CH \equiv CH \quad CH _3- C \equiv CH \quad CH _3- CH _3\)
I II III IV V

Why iron pyrite is not the ideal choice of ore for the extraction of iron?

Let \(\overrightarrow{\mathbf{a}}=a_1 \hat{\mathbf{i}}+a_2 \hat{\mathbf{j}}+a_3 \hat{\mathbf{k}}\) Assertion (A) : The identity \(|\overrightarrow{\mathbf{a}} \times \hat{\mathbf{i}}|^2+|\overrightarrow{\mathbf{a}} \times \hat{\mathbf{j}}|^2+|\overrightarrow{\mathbf{a}} \times \hat{\mathbf{k}}|^2=2|\overrightarrow{\mathbf{a}}|^2\) holds for \(\vec{a}\). Reason (R) : \(\overrightarrow{\mathbf{a}} \times \hat{\mathbf{i}}=a_3 \hat{\mathbf{j}}-a_2 \hat{\mathbf{k}}\), \(\overrightarrow{\mathbf{a}} \times \hat{\mathbf{j}}=a_1 \hat{\mathbf{k}}-a_3 \hat{\mathbf{i}}, \overrightarrow{\mathbf{a}} \times \hat{\mathbf{k}}=a_2 \hat{\mathbf{i}}-a_1 \hat{\mathbf{j}}\) Which of the following is correct?

The stability of dihalides of \(\mathrm{Si}, \mathrm{Ge}, \mathrm{Sn}\) and \(\mathrm{Pb}\) follows the sequence.

The set of solutions satisfying both \(x^2+5 x+6 \geq 0\) and \(x^2+3 x-4 < 0\) is

In triangle \(\mathrm{ABC}\), if \(a=7, b=8, \mathrm{C}=\frac{3 \sqrt{5}}{2}\) and \(\mathrm{C}\) is an acute angle, then \(c=\)

If the wavelength of an electromagnetic radiation is \(2000 Å\), what is its energy in ergs?