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Recent questions tagged q145

The ratio of Boyle's temperature and critical temperature for a gas is

asked Mar 9, 2014 by sharmaaparna1

1 answer

The number of optical isomers formed hydrogenation of the compound, $(CH_3)_2C = CHCH_3$ are :

asked Mar 4, 2014 by meena.p

1 answer

Find the equation of the circle(s) which touches the axes and whose centre lies on the line $2x-y=3$?

asked Feb 11, 2014 by sreemathi.v

1 answer

The velocity of an electron in a certain Bohr's orbit of H-atom bears the ratio 1:275 to the velocity of light. Then find the quantum numbers (n) of orbit.

asked Jan 24, 2014 by sharmaaparna1

1 answer

If $\;p=1+\frac{1}{2}+\frac{1}{3}+\;....\;+\frac{1}{n}\;$ then $\;S=\frac{1^2}{1^3}+\frac{1^2+2^2}{1^3+2^3}+\large\frac{1^2+2^2+3^2}{1^3+2^3+3^3}+\;....\;$ upto n terms equal to

asked Jan 22, 2014 by yamini.v

0 answers

$\lim\limits_{n\to \infty}\left\{\large\frac{1}{1-n^2} + \frac{1}{1-n^2} +......+ \large\frac{n}{1-n^2}\right\}$ is equal to

asked Jan 3, 2014 by sreemathi.v

1 answer

Integrate : $ \int x^2. e^{\Large x^3}. \cos (e^{\Large x^3}).dx$

asked Dec 23, 2013 by meena.p

1 answer

Which one of the following is the true description about an animal concerned ?

asked Dec 20, 2013 by thanvigandhi_1

0 answers

The shape of $ XeF_6$ is :

asked Nov 20, 2013 by thanvigandhi_1

0 answers

What are the products formed when moist chlorine gas is reacted with hypo?

asked Nov 9, 2013 by thanvigandhi_1

0 answers

Which one of the following reactions does not correspond to the preparation of "synthetic gasoline" during the Fischer-Tropsch process?

asked Oct 24, 2013 by thanvigandhi_1

1 answer

Which one of the following reactions does not occur?

asked Oct 21, 2013 by meena.p

1 answer

One per cent composition of an organic compound $\underline {A}$ is carbon: $85.71 \;\%$ and hydrogen $14.29\; \%$. It's vapour density is 14. Consider the following reaction sequence :

asked Oct 16, 2013 by meena.p

1 answer

Assertion (A) : $GeF_4$ and $SiCI_4$ act as Lewis bases. Reasons (R) : $Ge$ and $Si$ have d-orbitals to accept electrons.

asked Oct 14, 2013 by thanvigandhi_1

1 answer

Helium mixed with oxygen is used in the treatment of :

asked Oct 2, 2013 by meena.p

1 answer

Which one of the following alkenes gives only ethanal on ozonolysis?

asked Sep 25, 2013 by meena.p

1 answer

Liquid $\underline{X}$ is used in Bubble chamber to detect neutral mesons and gamma photons. Then ,$\underline{X}= \underline{X}$

asked Sep 19, 2013 by meena.p

1 answer

For a poisson distribution with parameter $ \lambda=0.25$ the value of the $2^{nd}$ moment about the origin is

asked Jun 3, 2013 by poojasapani_1

1 answer

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