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Recent questions tagged q179

The density of a mixture of $O_2$ and $N_2$ at NTP is 1.3g/l . Calculate partial pressure of $O_2$ .

asked Apr 5, 2014 by sharmaaparna1

1 answer

$CH_3 -CHCl -CH_2-CH_3$ has a chiral centre. which one of the following represents its R- configuration?

asked Mar 5, 2014 by meena.p

1 answer

If the radius of first Bohr orbit of hydrogen atom is 'x' then de Broglie wavelength of electron in $3^{rd}$ Orbit is nearly

asked Feb 7, 2014 by sharmaaparna1

1 answer

$S_{1}, S_{2},.....S_{n}$ are sums of infinite geometric series with first term $1,2,3,...n$ and common ratio $\large\frac{1}{2}$, $\large\frac{1}{3}$,...$\large\frac{1}{n+1}$ respectively. Find $\displaystyle\sum_{r=1}^{n}\;S_{r}$.

asked Jan 23, 2014 by yamini.v

1 answer

The set of points where the function $f(x)=\sqrt{1-e^{-x^2}}$ is differentiable is

asked Jan 6, 2014 by sreemathi.v

1 answer

Integrate : $\int \sqrt {e^x-1} dx$

asked Dec 24, 2013 by meena.p

1 answer

Consider the following four statements (a - d ) about certain desert animals such as kangaroo rat.

asked Dec 21, 2013 by thanvigandhi_1

0 answers

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