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The three cells with their $E^{\circ}_{cell}$ values are given below: 1. $Fe|Fe^{2+}||Fe^{3+}|Fe \ ; \ 0.404\text{ V}$ 2. $Fe|Fe^{2+}||Fe^{3+}, Fe^{2+}|Pt \ ; \ 1.211\text{ V}$ 3. $Fe|Fe^{3+}||Fe^{3+}, Fe^{2+}|Pt \ ; \ 0.807\text{ V}$ The standard Gibbs free energy change values for three cells are, respectively: (F represents the charge on $1\text{ mole}$ of electrons.)

The compound that forms a linear polymer due to hydrogen bonding is:

The correct shape and hybridisation for $\text{XeF}_4$ are:

In which of the following compounds is an intramolecular hydrogen bond present?

Which one of the following molecules contain no $\pi$ -bond?

$H_{2}O$ is dipolar, whereas $BeF_{2}$ is not. It is because:

Which one of the following is the correct order of decreasing bond enthalpies for the given species?

A molecule having the maximum dipole moment among the following is -

The incorrect statement among the following for sigma- ($\sigma$) and pi- ($\pi$) bonds formed between two carbon atoms is:

The correct order of solubility in an aqueous medium is:

In the hydrocarbon $\overset{6}{C}H_3-\overset{5}{C}H=\overset{4}{C}H-\overset{3}{C}H_2-\overset{2}{C}\equiv\overset{1}{C}H$, the state of hybridisation of carbons 1, 3 and 5 are in the following sequence:

What is the correct order of ionic mobility of the following ions in an aqueous solution?

In which of the following pairs of molecules/ions, the central atoms have $sp^2$ hybridisation?

The activation energy of a reaction can be determined from the slope of the graph between:

The plot of $\ln k$ vs $1/T$ for the following reaction, $2N_2O_5(g) \rightarrow 4NO_2(g) + O_2(g)$ gives a straight line with the slope of the line equal to $-1.0 \times 10^4 \text{ K}$. What is the activation energy for the reaction in $\text{J mol}^{–1}$? (Given: $R = 8.3 \text{ J K}^{–1} \text{ mol}^{–1}$)

Consider the reaction $N_2(g) + 3H_2(g) \rightarrow 2NH_3(g)$. The equality relationship between $\frac{d[NH_3]}{dt}$ and $-\frac{d[H_2]}{dt}$ is:

Which of the following compounds has the lowest melting point?

In which of the following molecules, all atoms are coplanar?

In the given reaction the product P is:

$\text{CH}_3\text{CH}_2\text{CHCl}_2$ upon reaction with $\text{NaNH}_2$ gives: