Identify the incorrect statement from the following.

How many moles of acidified \(\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}\) is required to liberate 6 moles of \(\mathrm{I}_{2}\) from an aqueous solution of \(\mathrm{I}^{-}\)?

Which one of the following conformations of cyclohexane is the least stable?

\( \left(\mathrm{CH}_{3}\right)_{3} \mathrm{SiCl} \) is used during polymerization of organosilicons because

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.

In the analysis of III group basic radicals of salts, the purpose of adding \(\mathrm{NH}_4 \mathrm{Cl}(s)\) to \(\mathrm{NH}_4 \mathrm{OH}\) is

Silicon doped with gallium forms

For which one of the following mixtures is composition uniform throughout?

The \(p-V\) diagram of a Carnot's engine is shown in the graph below. The engine uses 1 mole of an ideal gas as working substance. From the graph, the area enclosed by the \(p\) - \(V\) diagram is [The heat supplied to the gas is \(8000 \mathrm{~J}\)]

For an ideal gas, compressibility factor is

Domain of the function \(f\), given by \(f(x)=\frac{1}{\sqrt{(x-2)(x-5)}}\) is

Identify the correct sequence of action potential as it arrives at the axon terminal from the choices given below:

Morphine is obtained from the