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Recent questions tagged q135

The volume occupied by 1 mole of gas at 1 bar pressure and 273.15K is.....

asked Mar 5, 2014 by sharmaaparna1

1 answer

Which of the following correctly represents the $+I$ effect of the substituents :

asked Mar 3, 2014 by meena.p

1 answer

Find the equation of tangent at the point $p(x_1,y_1)$ to a circle $x^2+y^2+2gx+2fy+c=0$?

asked Feb 11, 2014 by sreemathi.v

1 answer

If the numbers $a, b, c, d, e$ are in AP, the value of $a-4b+6c-4d+e$ is

asked Jan 21, 2014 by yamini.v

1 answer

Find the ratio of energy of a photon of $2000A^{\large\circ}$ wavelength radiation to that of $4000A^{\large\circ}$ radiation.

asked Jan 17, 2014 by sreemathi.v

1 answer

If $\lim\limits_{x\to 0}\large\frac{((a-n)nx-\tan x)\sin nx}{x^2}$$=0$ where $n$ is a non zero real number, then $a$ is equal to

asked Jan 2, 2014 by sreemathi.v

1 answer

Integrate : $\int a^{\large a^{\Large a^{\Large a^{x}}}}.a^{\large a^{\Large a^{x}}}.a^{a^{x}}.a^{x}$$.dx$

asked Dec 23, 2013 by meena.p

1 answer

Vascular tissues in flowering plants develop from :

asked Dec 20, 2013 by thanvigandhi_1

0 answers

Assertion (A) : According to Lowry-Bronsted theory, a substance can function as an acid as well as a base. Reasons (R) : Acid reacts with a base to produce a salt.

asked Nov 20, 2013 by thanvigandhi_1

0 answers

Which one of the following is true for an exothermic reaction $ A \rightleftharpoons B$ if $E_{r}\: and \: E_b$ are the activation energies of forward and backward reactions respectively?

asked Nov 5, 2013 by thanvigandhi_1

1 answer

The structure of bakelite is

asked Oct 23, 2013 by thanvigandhi_1

1 answer

In a 500 ml flask, the degree of dissociation of $PCl_5$ at equilibrium is $40 \%$ and the initial amount is 5 moles. The value of equilibrium constant in $mol.lit^{-1}$ for the decomposition of $PCl_5$ is

asked Oct 21, 2013 by meena.p

1 answer

$1.5\;g$ of $CdCl_2$ was found to contain $0.9\;g$ of Cd. Calculate the Atomic weight of $Cd.$

asked Oct 15, 2013 by meena.p

1 answer

Observe the following statements :

asked Oct 14, 2013 by thanvigandhi_1

1 answer

The $pH$ of $0.01\;M$ solution of acetic acid is $5.0$. What are the values of $[H^{+}]$ and $K_{\alpha}$ respectively ?

asked Oct 1, 2013 by meena.p

1 answer

Electronegativity of group 13 elements follow the order:

asked Sep 25, 2013 by meena.p

1 answer

The $pH$ of a buffer solution made by mixing $25\;ml$ of $\;0.02\;M\;NH_4OH$ and $25\;ml$ of $\;0.2\;M\;NH_4Cl$ at $25^{\circ}C$ is : $(pK_b\;of\;NH_4OH=4.8)$

asked Sep 19, 2013 by meena.p

1 answer

Var $(4X+3)$ is

asked May 28, 2013 by poojasapani_1

1 answer

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