One mole of oxygen gas at STP is equal to

Arrange the following in increasing order of their boiling points
\(\begin{array}{ccc}\text { N-Ethylethanamine } & \text { Butanamine } & \begin{array}{c}\text { N, N-dimethyl } \\ \text { ethanamine }\end{array} \\ \text { I } & \text { II } & \text { III }\end{array}\)

Match the following.

Identify the initiation step \(/ \mathrm{s}(\mathrm{X})\) and termination \(\mathrm{step} / \mathrm{s}(\mathrm{Y})\) of free radical chlorination of \(\mathrm{CH}_4\) from the following.
a) \(\dot{\mathrm{C}}_3+\dot{\mathrm{C}} \mathrm{l} \rightarrow \mathrm{CH}_3-\mathrm{Cl}\)
b) \(\dot{\mathrm{Cl}}+\dot{\mathrm{C}} l \rightarrow \mathrm{Cl}-\mathrm{Cl}\)
c) \(\dot{\mathrm{C}}_3+\mathrm{Cl}_2 \rightarrow \mathrm{CH}_3-\mathrm{Cl}+\dot{\mathrm{Cl}}\)
d) \(\mathrm{Cl}_2 \rightarrow 2 \dot{\mathrm{Cl}}\)
e) \(\mathrm{CH}_4+\dot{\mathrm{Cl}} \rightarrow \dot{\mathrm{C}} \mathrm{H}_3+\mathrm{HCl}\)
f) \(\mathrm{CH}_3+\dot{\mathrm{C}}_3 \rightarrow \mathrm{CH}_3-\mathrm{CH}_3\)

A gas ' \(X\) ' is dissolved in water at 2 bar pressure. Its mole fraction is 0.02 in solution. The mole fraction of water when the pressure of gas is doubled at the same temperature is

p-Chlorotoluene is the major product in which of the following reactions ?

\(\mathrm{K}_{\mathrm{H}}\) values for \(\mathrm{H}_2, \mathrm{CO}_2, \mathrm{CH}_4\) and \(\mathrm{O}_2\) at \(298 \mathrm{~K}\) are \(71.18,1.67,41.85\) and \(34.86 \mathrm{Kbar}\). respectively. Arrange these gases in the increasing order of their solubility.

When two cells of emfs \(E_1\) and \(E_2\) and different internal resistances are connected in series with an external load resistor, the current through the load is \(5 \mathrm{~A}\). If the polarity of cell of emf \(E_2\) is reversed then the current through the load is \(2 \mathrm{~A}\). Then \(\frac{E_1}{E_2}=\)

Direction ratios of normal to a plane passing through \((1,0,0)\) and \((0,1,0)\) which makes an angle of \(\frac{\pi}{4}\) with the plane \(x+y-3=0\) are

What is the boiling point of solution of \(0.1 \mathrm{~m} \mathrm{KCl}\) ? \(\mathrm{K}_{\mathrm{b}}\) of water is \(0.52 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1} \cdot(\alpha=100 \%)\)(water boil at \(373 \mathrm{~K}\) )

The maximum amplitude of an AM wave is found to be \(20 \mathrm{~V}\) while its minimum amplitude is \(4 \mathrm{~V}\). The modulation index is

If \(\alpha\) satisfies the equation
\(\sqrt{\frac{x}{2 x+1}}+\sqrt{\frac{2 x+1}{x}}=2\), then the roots of the equation \(\alpha^2 x^2+4 \alpha x+3=0\) are

The number of extensive and intensive properties in the list given below is respectively
density, enthalpy, mass, temperature, volume, pressure