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Recent questions tagged q144

The temperature at which $H_2$ has the same RMS speed (at 1 atm) as that of $O_2$ at NTP is

asked Mar 9, 2014 by sharmaaparna1

1 answer

The structure of $H_2C = C = CH_2$ is /has

asked Mar 3, 2014 by meena.p

1 answer

Voltmeter reads the potential difference across the terminals of an old battery as $1.4V$ while a potentiometer reads it as $1.55V$. The voltmeter resistance is $280\; \text{ohms}$. Consider the following statements:

asked Feb 16, 2014 by thanvigandhi_1

1 answer

Find the equation of the circumcircle of the quadilateral formed by the four lines $x+y\pm1=0$ and $x-y\pm 1=0$?

asked Feb 11, 2014 by sreemathi.v

1 answer

An ion $Mn^{a+}$ has the magnetic moment equal to 4.9bm. What is the value of a ?

asked Jan 24, 2014 by sharmaaparna1

1 answer

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

asked Jan 22, 2014 by yamini.v

1 answer

The function $f(x)=\large\frac{ln(1+ax)-ln(1-bx)}{x}$ is not defined at $x=0$. The value which should be assigned to $f$ at $x=0$ so that it is continuous at $x=0$ is

asked Jan 3, 2014 by sreemathi.v

1 answer

Integrate : $\int \large\frac{\sin 2x }{a \cos ^2 x + b \sin ^2 x }$$dx$

asked Dec 23, 2013 by meena.p

1 answer

Which type of white blood cells are concerned with the release of histamine and the natural anticoagulant heparin ?

asked Dec 20, 2013 by thanvigandhi_1

0 answers

The order of bond energies in halogen molecules is :

asked Nov 20, 2013 by thanvigandhi_1

0 answers

The total number of $ \sigma\: and \: \pi$ bonds in pyrophosphoric acid are respectively :

asked Nov 9, 2013 by thanvigandhi_1

0 answers

Enthalpy of chemical absorption, $ \Delta\: H$ in $kJ\: mol^{-1}$ is in the range of

asked Oct 24, 2013 by thanvigandhi_1

1 answer

The number of sigma and pi bonds in peroxodisulphuric acid are , respectively

asked Oct 21, 2013 by meena.p

1 answer

What are $\underline{A},\underline {B}, \underline {C}$ in the following reactions ?

asked Oct 16, 2013 by meena.p

1 answer

Observe the following statements :

asked Oct 14, 2013 by thanvigandhi_1

1 answer

Which one of the following is formed apart from sodium chloride when chlorine reacts with hot concentrated sodium hydroxide ?

asked Oct 2, 2013 by meena.p

1 answer

The reagent used to detect phosphorous in an organic compound is :

asked Sep 25, 2013 by meena.p

1 answer

The role of copper diaphragm in Whytlaw-Gray's method is :

asked Sep 19, 2013 by meena.p

1 answer

The distribution function $F(X)$ of a random variable $X$ is

asked Jun 3, 2013 by poojasapani_1

1 answer

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