Recent questions tagged question-paper-3

The main intermediate formed in the reaction of propene with $HBr$ in presence of peroxide is

asked Apr 13, 2015 by meena.p

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Which of the following is a true statement.

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2,3 Dibromobutane, when heated with zinc dust yields.

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The ratio of e/m for a cathode ray

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Sodium niytrate decomposes above $800^{\circ}$ to give

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Pressure cooker reduces cooking time because

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Hypo phosphorus acid is

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In the heterogenous equilibrium $CaCO_3 (s) \rightleftharpoons CacO_3 +CO_2 (g)$ What would be the effect of addition of $CaCO_3$ on the equilibrium concentration of $CO_2$?

asked Apr 13, 2015 by meena.p

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A combustible gas is liberated when caustic soda solution is heated with

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For the preparation of 2- propanol methyl magnesium chloride will react with the following reagent

asked Apr 12, 2015 by meena.p

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An electric current of 100 ampere is passed through a molten liquid of sodium chloxde for 5 hours . Calculate the volume of chlorine gas liberated at the electrode at $NTP$

asked Apr 12, 2015 by meena.p

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Ozonolysis of benzene yield

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When $CO$ is passed over solid $NaOH$ heat to $200^{\circ}$ , it forms

asked Apr 10, 2015 by meena.p

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The salt which produces blue colour i borax bead test is

asked Apr 10, 2015 by meena.p

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The vapour density of $N_2O_4$ at a certain temperature is $30$ . Calculate the percentage dissociation of $N_2O_4$ at this temperature $N_2O_4 (g) \leftrightarrow 2NO_2(g)$

asked Apr 10, 2015 by meena.p

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Paraffins is the common name used for

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$200\;cm^3$ of an aqueous solution contains $1.26 \;g$ a polymer. The osmotic pressure of such solution at $300\;k$ is found to be mass of the polymer.

asked Apr 10, 2015 by meena.p

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Which one of the following cons exhibits colour in aqueous solution

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The number and type of bonds between two carbon atoms in $CaC_2$ are

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The element with highest density is

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Find the temperature at which 3 moles of $SO_2$ will occupy a volume of 10 litre at a pressure of $15\;atm\;\qquad a= 6.71\;atm \;liter^2\;mol^{-1}\; ;b= 0.0564 \;liters\;mol^{-1}$

asked Apr 10, 2015 by meena.p

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How many optically active teroisomers are possible for butane 2,3 -diol?

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Gun metal is an alloy of

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Which enzyme coverts glucose into ethanol

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Four one liter flasks are separately filled with the gases $O_2,f_2,CH_4$ and $CO_2$ under the same conditions. The ratio of number of molecules in these gases.

asked Apr 10, 2015 by meena.p

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The possible mechanism of addition reaction between ethene and bromine in non polar medium would be

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The number of phases present in colloIdal solution is

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Calomel is

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The oxidation state of $Fe$ in iron penta carbonyl is

asked Apr 9, 2015 by meena.p

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$C_7H_8$ show how many isomers.

asked Apr 9, 2015 by meena.p

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The number $49^n +16n -1$ is divisible by

asked Mar 11, 2015 by meena.p

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The sum of the first n natural number is one fifth of the sum of their squares, then n is

asked Mar 11, 2015 by meena.p

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The next form of the geometric progression $x,x^2+2,x^3-1-$ is

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In a triangle $ABC$ if $a=4,b=8$ and $\angle B=60^{\circ}$ then $\angle B=?$

asked Mar 11, 2015 by meena.p

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The tangent to the hyperbola $x^2-y^2=3$ are parallel to the straight line $2x+y+8=0$ at the following points

asked Mar 11, 2015 by meena.p

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The magnitude of the resultant of four forces $\overrightarrow{P}=\overrightarrow{i} - \overrightarrow{j} - \overrightarrow{k}; \overrightarrow{Q}=\overrightarrow{i}-2\overrightarrow{j}+2\overrightarrow{k}; \overrightarrow{R}= \overrightarrow{i}- \overrightarrow{j}+3\overrightarrow{k}; \overrightarrow{S}= \overrightarrow{i}+b\overrightarrow{j}$ acting on a particle is $6$ if $6 $ is equal to

asked Mar 11, 2015 by meena.p

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The domain the function $\sqrt {\log (x^2-6x+6)}$ is

asked Mar 11, 2015 by meena.p

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If $ \sin ^{-1} x +\cos ^{-1} \bigg(\large\frac{1}{2}=\frac{\pi}{2} $ then x is

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The number of ways in ehich 5 male and 2 female members of a commitee can be seated around a round table so that the two females are not seated together is

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If the resultant of two forces of magnitudes of P and Q acting at a pointat an angle of $60^{\circ}$is $\sqrt 7 Q$, Them $\large\frac{P}{Q}$

asked Mar 11, 2015 by meena.p

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The function $f:R \to R$ defined by $f(x)= (x-1)(x-2)(x-3)$ is

asked Mar 11, 2015 by meena.p

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$\lim \limits_{n \to \infty} \sum \limits_{k=1}^m \large\frac{k}{n^2+k^2}$ is equal to

asked Mar 11, 2015 by meena.p

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If P is nearly equal to q and $n >14$ such that $ \large\frac{(n+1)p+(n-1)q}{(n-1)p +(n-1)q} =\frac{p}{q}^k$ then the value of k is

asked Mar 11, 2015 by meena.p

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The equation of the plane containing the line $ \large\frac{x+1}{-3} =\frac{y-3}{2} =\frac{z+2}{1}$ and the point $(0,7,-7)$ is

asked Mar 11, 2015 by meena.p

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If $[x]$ denotes the greatest integer less than or equal to x, then the value of $\int \limits _1^5 [|x-3|]dx$ is

asked Mar 11, 2015 by meena.p

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The differential equation $\bigg( \large\frac{d^2y}{dx^2}\bigg)^2 - \bigg( \frac{dy}{dx}\bigg)$$=y^3$ has degree

asked Mar 11, 2015 by meena.p

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The minimum value of $\large\frac{\log x}{x}$ in the interval $[2, \infty]$

asked Mar 11, 2015 by meena.p

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If $\log _7 2 =m$ then $\log _{49}28$ is equal to

asked Mar 11, 2015 by meena.p

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The probability that a leap year selected at random contains either 53 sundays or 53 mondays

asked Mar 10, 2015 by meena.p

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The equation $2x^2+2y^2+4x+8y+15=0$ represents

asked Mar 10, 2015 by meena.p

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