List of top Questions asked in JIPMER

The IUPAC name of $\left[ Co \left( NH _{3}\right)_{5} ONO \right]^{2+}$ ion is
A rectangular loop has a sliding connector PQ of length $\ell$ and resistance $R\,\Omega$ and it is moving with a speed v as shown. The set-up is placed in a uniform magnetic field going into the plane of the paper. The three currents $I_1,\, I_2$ and $I$ are
A 220 volt - 1000 watt bulb is connected across a 110 volt mains supply. The power consumed will be
If glucose of $36\, g$ weight is dissolved in $2 \,kg$ of $H_2O$ then, change in boiling point $(\Delta T_b)$ at 1.013 bar will be ($K_b$ for ${H_2O}$ is ${ 0.52\, K\, kg \,mol^{-1}}$)
With increase in temperature, which one of these changes?
The degree of dissociation $(\alpha)$ of a weak electrolyte $A_xB_y$ is related to van?t Hoff factor $(i)$ by the expression
Concentrated aqueous sulphuric acid is $98 \% \,H _{2} SO _{4}$ by mass and has a density of $1.80 \,g .\, mL ^{-1}$ Volume of acid required to make $1$ litre of $0.1\, M \,H _{2} SO _{4}$ solution is:
A cylinder of radius $R$, length $L$ and density $\rho$ floats upright in a fluid of density $\rho_0$. If it is given a small downward displacement of amplitude $x$, the time period of resulting undamped oscillation is
For a 1st order reaction the unit of rate constant is
Thermal decomposition of $HI$ on gold surface is a
Inversion of cane sugar by acid hydrolysis in excess of water is
The overall order of a reaction which has the rate expression, rate = $k[A]^{1/2}\, [B]^{1/2}$ is
In a first order reaction, the time taken for 90% decay is 12 days. The time taken for 99% decay is
Two pith balls, each of mass 1.8 g are suspended from the same point by silk threads each of length 20 cm. When equal charge $Q$ is given to both the balls, they separate until the two threads become perpendicular. Then the charge $Q$ on each pith ball is $\left[\frac{1}{4\pi \varepsilon_0 }=9 \times10^{9} N m^{2} C^{-2}\right]$
A charge $+q$ is placed at origin. There are two concentric spherical surfaces; $S_1$ of radius $R$ and $S_2$ of radius $2R$. Both the surfaces have their centres at the origin. Let $\phi_1$ denote the flux through $S_1$ and $\phi_2$ the flux through $S_2$. The relation between $\phi_1$ and $\phi_2$ is
A charge $Q$ is to be divided into two parts : $q$ and $Q - q$. What is the relation between $q$ and $Q$ if the two parts, when placed apart, has maximum coloumb repulsion
Three concentric metallic spherical shells of radii $R, 2R$ and $3R$ are given charges $Q_1, Q_2, Q_3$ respectively. It is found that the surface charge densities on the outer surface of the shells are equal. Then the ratio of the charges given to the shells $Q_1 : Q_2 : Q_3$ is
An electron initially at rest, is accelerated through a potential difference of 200 volt, so that it acquires a velocity ${8.4 \times 10^6 m s^{-1}}$, the value of $e/m$ of electron will be
${ 2HI <=> H_2 + I_2 . K_p}$ is
When a solution of ${CuSO_4}$ is electrolysed for 15 minutes with a current of 1 amp, then the mass of Cu deposited at the cathode will be
Thermal decomposition of sodium azide gives
The relative ease of dehydration of alcohol is
The reagents used in Clemmensen reduction of aldehyde is/are
The geometry of complex ion $[ {Fe(CN)_6}]^{4-}$ is
Ozone layer block the radiation of wavelength