List of practice Questions

Ethanol is soluble in water due to

The reactivities of ethane, ethene and ethyne are of the order

Equivalent weight of $ {NH_3}$ in the change, $ {N_2 -> NH_3}$ is

Essential elements are

Estimate the change in the density of water in ocean at depth of 500m below the surface. The density of water at the surface is $10301\, kg\,m^{-3}$ & the bulk modulus of water is $2.2 \times 10^9Nm^{-2}$

Ethanamine is treated with nitrous acid at ordinary temperature, the products will be

Equivalent weight of $ {FeS_2}$ (mol wt = M) in the following reaction is $ {FeS_2 + O_2 -> Fe_2O_3 + SO_2}$

Equivalent weight of $I_2$ in the reaction, $ {I_2 + 5 Cl_2 + 6 H_2O -> 2 \, HIO_3 + 10 HCl}$ is

Equivalent mass of oxidising agent in the reaction $ {SO_2 + 2H_2S -> 3S + 2H_2O}$ is

Equivalent weight of $ {CuSO_4}$ in terms of its molecular weight M in the following reaction is $ {2 CuSO_4 + 4 KI -> Cu_2 I_2 + I_2 + 2 K_2SO_4}$

Equivalent weight of $FeC_2O_4$ in the change, $ {FeC2O4 -> Fe^{3+} + CO2}$

Equation of the vertical line passing through the point (-4,5) is

Equation of $YOZ$ plane is

Equation of a line passing through $(1, 2, -3)$ and parallel to the line $\frac{x-2}{1}=\frac{y+1}{3}=\frac{z-1}{4}$ is

Equation of a progressive wave is given by $y = 0.2 cos \, \pi \big(0.04 t + 0.02 x - \frac{\pi}{6}\big).$ The distance is expressed in cm and time in second. What will be the minimum distance between two particles having the phase difference of $\frac{\pi}{2}$ ?

Equation of the hyperbola with eccentricity $ \frac{3}{2}$ and foci at $(?2 ,0)$ is

Equal masses of $SO_2,CH_4$ and $0_2$ are mixed in empty container at 298 K, when total pressure is 2.1 atm. The partial pressure of $CH_4$ in the mixture is

Equal volumes of two monoatomic gases, A and B, at same temperature and pressure are mixed. The ratio of specific heats $(C_p/C_v)$ of the mixture will be :

Equanil is an example of ..........

Enzymes used in detergents are

Epimysium,perimysium and endomysium are present in

Epiphyllous buds serve the function of

Enolic form of acetone has

Enthalpy of sublimation of a substance is equal to

Energy is absorbed in the hydrogen atom giving absorption spectra when transition takes place from