Reactivity of order of halides for dehydrohalogenation is

One of the following conversion results in the change of hybridization and geometry :

Which of the following is an organometallic compound?

In presence of \( \mathrm{HCl}, \mathrm{H}_{2} \mathrm{~S} \) results the precipitation of Group-2 elements but not Gp-4
elements during qualitative analysis. It is due to

1 mole of \(\mathrm{HI}\) is heated in a closed container of capacity of \(2 \mathrm{~L}\). At equilibrium half a mole of \(\mathrm{HI}\) is dissociated.
The equilibrium constant of the reaction is

Match List-I with List-II
\begin{array}{|l|l|l|l|}\hline & \text{List-I (Types of redox reactions)} & & \text{List-II (Examples)} \\\hline \text{a}. & \text{Combination reaction} & \text{(i)} & \mathrm{Cl}_{2(\mathrm{~g})}+2 \mathrm{Br}_{(\mathrm{aq})}^{-} \rightarrow 2 \mathrm{Cl}_{(\mathrm{aq})}^{-}+\mathrm{Br}_{2(\mathrm{l})} \\\hline \text{b.} & \text{Decomposition reaction} & \text{(ii)} & 2 \mathrm{H}_2 \mathrm{O}_{2(\mathrm{aq})} \rightarrow 2 \mathrm{H}_2 \mathrm{O}_{(1)}+\mathrm{O}_{2(\mathrm{~g})} \\\hline \text{c.} & \text{Displacement reaction} & \text{(iii)} & \mathrm{CH}_{4(\mathrm{~g})}+2 \mathrm{O}_{2(\mathrm{~g})} \xrightarrow{\Delta} \mathrm{CO}_{2(\mathrm{~g})}+2 \mathrm{H}_2 \mathrm{O}_{(1)} \\\hline \text{d.} & \text{Disproportionation reaction} & \text{(iv)} & \mathrm{H}_2 \mathrm{O}_{(1)} \xrightarrow{\Delta} 2 \mathrm{H}_{2(\mathrm{~g})}+\mathrm{O}_{2(\mathrm{~g})} \\\hline\end{array}

Choose the correct answer from the options given below.

Consider the following 4 electrodes
\(\begin{aligned} & \mathrm{A}: \mathrm{Ag}^{+}(0.0001 \mathrm{M}) / \mathrm{Ag}(s) \\ & \mathrm{B}: \mathrm{Ag}^{+}(0.1 \mathrm{M}) / \mathrm{Ag}(s) \\ & \mathrm{C}: \mathrm{Ag}^{+}(0.01 \mathrm{M}) / \mathrm{Ag}(s) \\ & \mathrm{D}: \mathrm{Ag}^{+}(0.001 \mathrm{M}) / \mathrm{Ag}(s) ; E^{\circ}{ }_{\mathrm{Ag}^{+} / \mathrm{Ag}}=+0.80 \mathrm{~V}\end{aligned}\)
Then reduction potential in volts of the electrodes in the order.

Biolistics method is suitable for gene transfer into __________

Which of the following gives an aldehyde on dry distillation?

The process of decomposition delays when

An electron in an excited state of \(\mathrm{Li}^{2+}\) ion has angular momentum \(\frac{3 h}{2 \pi}\). The de-Broglie wavelength of electron in this state is \(p \pi a_{0}\) (where, \(a_{0}=\) Bohr radius ). The value of \(p\) is

Which of the following conditions correctly describes the manner of determining the sex in the given example?

A pair of compounds having the same boiling points are