List of practice Questions

The osmotic pressure of 0.2 molar solution of urea at 300 K (R = 0.082 litre atm $mol^{-1} K^{-1})$ is
The order of size of nucleus and Bohr's radius of an atom respectively are
The order of stability of free radical is
The ore of aluminium is
The organ of Corti is a structure present in
The order of rate of hydrolysis of alkyl halides: $1^{\circ}, 2^{\circ}, 3^{\circ}$ and $CH_3X$ by $S_N2$ pathway is
The order of reactivity of $CH_{3}CHO, CH_{3}COC_{2}H_{5}$ and $CH_{3}COCH_{3}$ is
The order of reactivity of the following alcohols with halogen acids is
The order of reactivity of various alkyl halides towards nucleophilic substitution follows the order
The order ionization energies of different orbital is
The order of magnitude of the diameter of the earth is (Diameter of the earth is $1.28 \times 10^7\,m$)
The orbital speed of geostationary satellite is
The order and degree of $\left(1+ \frac{dy}{dx}\right)^{2} = 5\left(\frac{dy}{dx}\right)^{2} $ are
The order HF < HCl < HBr < Hl corresponds to which of the following properties ?
The opening of right atrium into right ventricle of human heart is guarded by
The optical density of turpentine is higher than that of water while its mass density is lower. Figure shows a layer of turpentine floating over water in a container. For which one of the four rays incident on turpentine in figure, the path shown is correct?
The orbital configuration oi $_{24}Cr$ is $3d^5 4s^1$. The number of unpaired electrons in $Cr^{3+} (g)$ is
The oil used in the floatation method for the purification of ores is
The one which does not show variable valency is
The one which is not the unit of length is
The only oxidation state of alkali metals in their compounds is
The observation which occur most frequently is known as :
The octahedral voids in a face-centred cubic (fee or ccp) structure are located at
The numerical value of coefficient of linear expansion is independent of units of a) length b) temperature c) area d) mass
The numerical value of universal gas constant (R)depends upon