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Recent questions tagged q124

What is the pressure of 2 mole of ammonia at $27^{\large\circ}C$ when its volume is 5 litre according to Van der Waal's equation? (a = 4.17 b = 0.03711)

asked Mar 3, 2014 by sharmaaparna1

1 answer

An enantiometrically pure acid is treated with racemix mixture of an alcohol having carbon. The ester formed will be :

asked Feb 28, 2014 by meena.p

1 answer

What would be the reagent in the below reaction

asked Feb 27, 2014 by sreemathi.v

1 answer

Find the equation of a diameter bisecting a system of parallel chords of slope m of the hyperbola $\large\frac{x^2}{a^2}-\frac{y^2}{b^2}$$=1$?

asked Feb 10, 2014 by sreemathi.v

1 answer

If $l,m,n$ are $\;x^{th}\;,y^{th}\;and\;z^{th}$ term of a GP then , $\begin{vmatrix}\log l& x & 1\\\log m &y &1\\\log n &z &1\end{vmatrix}=$

asked Jan 21, 2014 by yamini.v

1 answer

Wavelength of the $K_{\alpha}$ characteristic X-rays of iron and potassium are $1.93\times 10^{-8}$ are $3.737\times 10^{-8}cm$ respectively.What is the atomic number and name of the element for which characteristic $K_{\alpha}$ wavelength is $2.289\times 10^{-8}cm$.

asked Jan 17, 2014 by sreemathi.v

1 answer

$\lim\limits_{x\to 0^+}x^m(\log x)^n,(m,n\in N)$ is

asked Jan 2, 2014 by sreemathi.v

1 answer

What is true about the isolated small tribal population ?

asked Dec 20, 2013 by thanvigandhi_1

0 answers

$I= \int \sin ^3 x \sin 2x dx$ Find the value of I

asked Dec 20, 2013 by meena.p

1 answer

The correct order of magnitude of bond angles among the compounds $ CH_4, NH_3 \: and \: H_2O$ is:

asked Nov 18, 2013 by thanvigandhi_1

0 answers

The order of reactivity of Phenol (1), Nitrobenzene (2) and Benzene (3) towards nitration is :

asked Nov 5, 2013 by thanvigandhi_1

1 answer

In the electrolysis of alumina using cryolite, the reaction that takes place at cathode is

asked Oct 21, 2013 by thanvigandhi_1

1 answer

The atomic numbers of elements $\underline {A}, \underline {B}, \underline {C}$ and $\underline {D}$ are $z-1,z,z+=1$ and $z+2$ respectively. If '$\underline {B}$' is a noble gas, choose the correct answers from the following statements :

asked Oct 21, 2013 by meena.p

1 answer

One mole of alkene $\underline {X}$ on ozonolysis gave one mole of acetaldehyde and one mole of acetone. The IUPAC name of $\underline{X}$ is :

asked Oct 14, 2013 by meena.p

1 answer

The order of basic strength of $C_6H_5NH_2$ (1), $C_2H_5NH_2$ (2), $(C_2H_5)_2NH $ (3) and $NH_3$ (4) is :

asked Oct 13, 2013 by thanvigandhi_1

1 answer

Match the following:

asked Oct 1, 2013 by meena.p

1 answer

A solution of 10 g of non-volatile binary electrolyte (mol wt=100) in 500 g of water freezes at $-0.74^{\circ}C$. What is the degree of ionisation ? ($k_f$ of water$=1.85\;K \; molality^{-1})$

asked Sep 25, 2013 by meena.p

1 answer

Identify the correct set:

asked Sep 18, 2013 by meena.p

1 answer

In the set of integers under the operation $^\ast $ defined by $a^{\ast}b=a+b-1$ the identity element is

asked May 27, 2013 by poojasapani_1

1 answer

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