Chemistry Test-...

Two liquids \(A\) and \(B\) form an ideal solution. At \(300 K\) the vapour pressure of a solution of \(1\) mole of \(A\) and \(x\) moles of \(B\) is \(550 mm\). If the vapour pressures of pure \(A\) and \(B\) are \(400 mm\) and \(600 mm\) respectively, then \(x\) is:

The order of basic strength in gas phase of the following compound would be

The tendency of an electrode to lose electrons is known as:

The enthalpy of combustion of methane, graphite and dihydrogen at \(298 \mathrm{~K}\) are \(-890.3 \mathrm{~kJ} \mathrm{~mol}^{-1},-393.5 \mathrm{~kJ} \mathrm{~mol}^{-1}\), and \(-285.8 \mathrm{~kJ} \mathrm{~mol}^{-1}\) respectively. Enthalpy of formation of \(\mathrm{CH}_{4}(\mathrm{g})\) will be:

How many electrons constitute the current of one microampere in one second?

Which method can be used to separate mixture of 1°, 2° and 3° amines?

The shape of p-orbital is:

\(\Delta G ( HI : g ) \equiv+1.7 \quad kJ\) is,

What is the equilibrium constant for \(2 HI ( g ) \rightleftharpoons\) \(H _{2}( g )+ I _{2}( g )\) at \(25^{\circ} C\)?

Which of the following statements is not correct according to molecular orbital theory?

A basic event in protein synthesis is the creation of a/an ____.