NEET Questions

Two gases A and B are at the same temperature. The rms speed of gas A is twice that of gas B. The ratio of the molecular mass of A to B is:

An alkane (A) undergoes a substitution reaction with bromine to yield an alkyl bromide. This alkyl bromide is then subjected to the Wurtz reaction, producing a gaseous hydrocarbon with a molecular mass less than 30. What is the identity of alkane (A)?

${N_2}$ molecules is 14 times heavier than a ${H_2}$ molecule. At what temperature will the rms speed of ${H_2}$ molecules be equal to that of ${N_2}$ molecule at ${27^0}C$

At ${0^0}C$ temperature, root mean square speed of which of the following gas will be maximum?

A rocket is propelled by a gas which is initially at a temperature of 4000 K. The temperature of the gas falls to 1000 Kas it leaves the exhaust nozzle. The gas which will acquire the largest momentum while leaving the nozzle, is

The rate of diffusion of hydrogen is about

What is kinetic energy of 1 g of {{\rm{O}}_2}{\mkern 1mu} {\mkern 1mu} {\rm{at}}{\mkern 1mu} {\mkern 1mu} 47\,\,^\circ C?

Two gases $A$ and $B$ having the same volume diffuse through a porous partition in 20 and 10 seconds respectively. The molecular mass of $A$ is $49{\rm{u}}$. Molecular mass of $B$ will be

Two gases $A$ and $B$ having the same volume diffuse through a porous partition in 20 and 10 seconds respectively. The molecular mass of $A$ is $49{\rm{u}}$. Molecular mass of $B$ will be

At what temperature will most probable speed of the molecules of the second number of alkyne series be the same as that of ${\rm{S}}{{\rm{O}}_2}$ at 527\,^\circ C ?