Among 2-chloropropanoic acid,
3-chloro-propanoic acid, 2-2-dichloroacetic acid and propanoic acid the \(K_{a}\) values will be in the order,

When the same amount of electricity is passed through solutions of silver nitrate and copper sulphate, \(0.4 \mathrm{~g}\) copper is deposite(d)The amount of silver deposited is

A volatile compound is formed by carbon monoxide and

The following results were obtained during study of the reaction \(2 \mathrm{NO}(\mathrm{g})+\mathrm{Cl}_2(\mathrm{~g}) \rightarrow 2 \mathrm{NOCl}(\mathrm{g})\). Determine the value of \([\mathrm{X}]\) in \(\mathrm{mol} / \mathrm{L}\)
\(\begin{array}{|c|c|c|c|} \hline \text{Experiment} & \text{[NO] mol/L} & \left[\mathrm{Cl}_2\right] \text{ mol/L} & \text{Initial rate of formation. [NOCl] mol/L/min} \\ \hline \text{I} & 0.2 & 0.2 & 6.0 \times 10^{-3} \\ \hline \text{II} & 0.2 & 0.4 & 2.4 \times 10^{-2} \\ \hline \text{III} & 0.4 & 0.2 & 1.2 \times 10^{-2} \\ \hline \text{IV} & X & 0.6 & 1.35 \times 10^{-1} \\ \hline \end{array}\)

A 150 watt bulb emits light of wavelength \(6600 Å\) and only \(8 \%\) of the energy is emitted as light. How many photons are emitted by the bulb per second?

In dilute alkaline solution \(\mathrm{MnO}_4^{-}\)changes to

A buffer solution has equal volumes of \(0.1 \mathrm{M}\) \(\mathrm{NH}_4 \mathrm{OH}\) and \(0.01 \mathrm{M} \mathrm{NH}_4 \mathrm{Cl}\). The \(\mathrm{pK}\) of the base is 5 . The \(\mathrm{pH}\) is

The escape velocity is \(11.2 \mathrm{~km} / \mathrm{s}\). If a body is to be projected in a direction making an angle \(60^{\circ}\) to the vertical, then the escape velocity is

A vertical circular coil of radius \(0.1 \mathrm{~m}\) and having 10 turns carries a steady current. When the plane of the coil is normal to the magnetic meridian, a neutral point is observed at the centre of the coil. If \(B_{H}=0.314 \times 10^{-4} \mathrm{~T}\), then the current in the coil is

Which one of the following will give a positive result when it is warmed with Chloroform and alcoholic solution of \(\mathrm{KOH}\) ?

If same type of atoms are packed in hexagonal close packing and cubic close packing separately, then

Find the approximate value of function \(f(x)=x^3-5 x+10\) at \(x=3.001\).

A particle is projected at an angle of \(30^{\circ}\) with the horizontal with a momentum \(p\). At the highest point its momentum is