List of practice Questions

The colligative properties depend upon

The coefficient of $x^{-7}$ in the expansion of $\left[ax - \frac{1}{bx^{2}}\right]^{11} $ will be

The coefficient of $x^n$ in the binomial expansion of $(1 - x)^{-2}$ is

The coefficient of $x^n$ in the expansion of ($1 - 2x + 3x^{2} - 4x^{3} + ...$ to $\infty$)$^{-n}$ is

The coefficient of linear expansion of a solid depends upon

The coefficient of performance of refrigerator, whose efficiency is $25\%$ is

The coefficient of $x^{50}$ in the expansion of $\frac{\left(3-5x\right)}{\left(1-x\right)^{2}}$ equals

The closed vessel of volume $0.02m^3$ contaihs mixture of two gases Neon & Argon the total mass of mixture is 28 gm. The mass of individual gases in vessel is $(M_{neon}=20,M_{argon }=40,R=8.3.l/mol-$

The co-efficient of $x^{-12}$ in the expansion of$\left(x+\frac{y}{x^3}\right)^{20}$is

The co-efficient of $x^3$ in the expansion of $(1-x+x^2)^5$ is

The coagulation of colloidal particles of the sol can be caused by

The chemical reagent used for leaching of gold and silver ores is

The chief reaction product of reaction between n-butane and bromine at 130?C is :

The circle $ x^2 + y^2 - 25 = 0$ and $3(x^2 + y^2) - 30x - 40)' + 175 = 0$ touch each other at

The chemical name of aspirin is

The charge on cobalt in $ {[Co(CN)_6 ]^{3-}}$ is

The chemical composition of cryolite mineral is

The charge on $1$ gram ions of $Al^{3+}$ is

The charge on an electron was calculated by

The characters which appear in the first filial generation are called

The characteristic(s) common to urea, uric acid and ammonia is/are (i) They are nitrogenous wastes (ii) They all need very large amount of water for excretion (iii) They are all equally toxic (iv) They are produced in the kidneys

The characteristic's of light which are changed during modulation is/are

The characteristic property of organization is present

The cell wall is composed of two thin overlapping shells which fit together like a soap case in

The cells called '$HIV$ factory' is