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Recent questions tagged q134

A 2.24 litre cylinder containing $O_2$ gas at $27^{\large\circ}C$ and 2 atm is found to develop a leakage was repaired , the pressure dropped to 100cm of Hg at $27^{\large\circ}C$ . The number of moles of gas escaped out during leakage is :

asked Mar 5, 2014 by sharmaaparna1

1 answer

Inductive effect involves

asked Mar 3, 2014 by meena.p

1 answer

Discuss the position of the points (2,3) and(1,3) with respect to circle $x^2+y^2-4x+2y-11=0$?

asked Feb 11, 2014 by sreemathi.v

1 answer

Sum of 20 terms of the series 1+2+3+4+5+8+7+16+9+....... is

asked Jan 21, 2014 by yamini.v

1 answer

The electron in $Li^{2+}$ ions are excited from ground state by absorbing $8.4375R_h$ energy/electron.How much emission lines are expected during de-excitation of electrons to ground state ?

asked Jan 17, 2014 by sreemathi.v

1 answer

Which of the following function is differentiable at $x=0$?

asked Jan 2, 2014 by sreemathi.v

1 answer

Integrate : $ \int \large\frac{x^{e-1}+e^{x-1}}{x^e+e^x}$$dx$

asked Dec 21, 2013 by meena.p

1 answer

Senescence as an active developmental cellular process in the growth and functioning of a flowering plant, is indicated in :

asked Dec 20, 2013 by thanvigandhi_1

0 answers

What is the effect of a ten-fold increase in pressure on $k_p$ in the reaction $ N_2(g)\: 3H_2(g) \: \leftrightharpoons \: 2\: NH_3 (g) $ at equilibrium ?

asked Nov 20, 2013 by thanvigandhi_1

0 answers

For the reaction $A+3b \rightarrow 2C+D$, which one of the following is not correct?

asked Nov 20, 2013 by thanvigandhi_1

1 answer

The number of unit cells present in 39 grams of potassium if its crystallizes as body centred cube is : ( N = Avogadro number , At.wt of potassium =39)

asked Nov 5, 2013 by thanvigandhi_1

1 answer

In the Hofmann mustard oil reaction of primary amines, the black precipitate is due to

asked Oct 23, 2013 by thanvigandhi_1

1 answer

For a crystal, the angle of diffraction (20) is $90^{\circ}$ and the second order line has a $\underline d$ value of $2.28 A^{\circ}$.The wavelength (in $A ^{\circ}$) of $X-rays used for Bragg's diffraction is

asked Oct 21, 2013 by meena.p

1 answer

$SiCl_4$ on hydrolysis forms $'X'$ and HCl. Compound $'X'$ loses water at $1000^{\circ}$ and gives $'Y'$. Compounds $'X'$ and $'Y'$ respectively are :

asked Oct 15, 2013 by meena.p

1 answer

During the manufacture of cast iron, the slag ($ CaSiO_3$) is formed in

asked Oct 14, 2013 by thanvigandhi_1

1 answer

If the equilibrium constant for the reaction $H_{2(g)}+I_{2(g)} \rightleftharpoons 2 HI_{(g)}$ is $K $ What is the equilibrium constant of $HI_{(g)} \rightleftharpoons \large\frac{1}{2} $$H_{2(g)}+\large\frac{1}{2} $$I_{2(g)}$?

asked Oct 1, 2013 by meena.p

1 answer

The relative of $Ca,Sr,Mg$ and $Ba$ with water follow the order:

asked Sep 25, 2013 by meena.p

1 answer

The degree of ionization of $\;0.10\;M$ lactic acid is $4.0 \%$

asked Sep 19, 2013 by meena.p

1 answer

$\mu_{2}=20, \mu'_{2}=276$ for a discrete random variable $X$. Then the mean of the random variable $X$ is

asked May 28, 2013 by poojasapani_1

1 answer

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