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Recent questions tagged q143

The Volume occupied by molecules of one mole of gas at NTP , having radius $10^{-8}cm$ is approximately:

asked Mar 9, 2014 by sharmaaparna1

1 answer

Absolute alcohol is prepared by

asked Mar 3, 2014 by meena.p

1 answer

A battery of $emf\: E$ and internal resistance $ r$ is connected across a resistance $ R.\: R$ can be adjusted to any value greater than or equal to zero. A graph is plotted between the current through the resistance and the potential difference across it. Select the incorrect alternative

asked Feb 16, 2014 by thanvigandhi_1

1 answer

Find the position of a point (2,3) with respect to circle $x^2+y^2+4x+4y+4=0$

asked Feb 11, 2014 by sreemathi.v

1 answer

An oil drop has $8.01\times10^{-19}$ C charge. Calculate the number of electrons in this drop.

asked Jan 23, 2014 by sharmaaparna1

1 answer

Sum of n terms of series $(n^2-1^2)$ + $2\;.(n^2-2^2)$ + $3\;.(n^2-3^2)$+.....is

asked Jan 22, 2014 by yamini.v

1 answer

$\lim\limits_{x\to 1}(\log_22x)^{\large\log_x5}$ is

asked Jan 2, 2014 by sreemathi.v

1 answer

Integrate: $ \int \large\frac{x^3 \tan ^{-1} x^4 }{1+x^8}$$dx$

asked Dec 23, 2013 by meena.p

1 answer

Electrons from excited chlorophyll molecule of photosystem II are accepted first by :

asked Dec 20, 2013 by thanvigandhi_1

1 answer

The oxidation numbers of sulphur in $ S_8,SO_2\: and \: H_2S$ respectively are :

asked Nov 20, 2013 by thanvigandhi_1

0 answers

Which one of the following is a correct set?

asked Nov 9, 2013 by thanvigandhi_1

0 answers

For a reaction to be spontaneous at all temperatures

asked Oct 24, 2013 by thanvigandhi_1

1 answer

The correct order of reducing abilities of hydrides of V group elements is

asked Oct 21, 2013 by meena.p

1 answer

What are $\underline {X}$ and $\underline {Y}$ in the following reaction sequence :$C_2H_5OH \longrightarrow \underline{X} \longrightarrow \underline{Y}$

asked Oct 15, 2013 by meena.p

1 answer

Orange red coloured monoxide is :

asked Oct 14, 2013 by thanvigandhi_1

1 answer

Which one pf the following is most acidic?

asked Oct 1, 2013 by meena.p

1 answer

Which one of the following is not a green - house gas?

asked Sep 25, 2013 by meena.p

1 answer

$Na_2S_2O_3$ reacts with moist $Cl_2$ to from $Na_2SO_4,HCl$ and $\underline{X}.$ Which one of the following is $\underline{X}$?

asked Sep 19, 2013 by meena.p

1 answer

If a random variable $X$ follows poisson distribution such that $E(X^{2})=30$ then the variance of the distribution is

asked May 30, 2013 by poojasapani_1

1 answer

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