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Recent questions tagged q126

The radius of general equation of circle is

asked Mar 25, 2014 by balaji.thirumalai

1 answer

If one mole of a monoatomic gas ($\gamma = \large\frac{5}{3}$) is mixed with one mole of a diatomic gas ($\gamma = \large\frac{7}{5}$) . The value of V for the mixture is :

asked Mar 5, 2014 by sharmaaparna1

1 answer

The enolic form of acetone contains

asked Mar 3, 2014 by meena.p

1 answer

$(1-2y)\;(1+3x+9x^2+27x^3+81x^4+243x^5+729x^6)$ = $(1-64y^6)$, $(y\;\neq\;1)$, then $\frac{x}{y}$ is

asked Jan 21, 2014 by yamini.v

1 answer

Photoelectrons are liberated by ultraviolet light of wavelength $3000A^{\large\circ}$ from a metallic surface for which the photoelectric threshold is 4000$A^{\large\circ}$.Calculate De-Broglie wavelength of electrons emitted with maximum kinetic energy.

asked Jan 17, 2014 by sreemathi.v

1 answer

If $f$ is twice differentiable and $f''(0)=2$ then $\lim\limits_{x\to 0}\large\frac{2f(x)-3f(2x)+f(4x)}{x^2}$=

asked Jan 2, 2014 by sreemathi.v

1 answer

Which one of the following is incorrect about the characteristics of protobionts ( coacervates and microspheres ) as envisaged in the abiogenicorigin of life ?

asked Dec 20, 2013 by thanvigandhi_1

0 answers

Integrate : $\int \limits _0^8 \tan ^{-1} x.dx$

asked Dec 20, 2013 by meena.p

1 answer

0.14 g of an element on combustion gives 0.28 g of its oxide. What is that element ?

asked Nov 20, 2013 by thanvigandhi_1

1 answer

The $pK_q$ values of four carboxylic acid are 4.76, 4.19, 0.23 and 3.41 respectively. The $pK_a$ value of strongest carboxylic acid among them is :

asked Nov 5, 2013 by thanvigandhi_1

1 answer

The stationary phase in paper chromatography is

asked Oct 21, 2013 by thanvigandhi_1

1 answer

Which one of the following reactions is not correct?

asked Oct 21, 2013 by thanvigandhi_1

0 answers

Which one of the following is a correct set?

asked Oct 21, 2013 by meena.p

0 answers

The wave lengths of electron waves in two orbits is $3:5$ The ratio of kinetic energy of electrons will be :

asked Oct 14, 2013 by meena.p

1 answer

The number of molecules of $CO_2$ liberated by the complete combustion of $0.1$ grams atom of graphite in air is :

asked Oct 1, 2013 by meena.p

1 answer

In electro chemical corrosion, the metal undergoing corrosion :

asked Sep 25, 2013 by meena.p

1 answer

Which one of the following is an example of disproportionation reaction?

asked Sep 18, 2013 by meena.p

0 answers

If $f(x)=\large\frac{A}{\pi}\frac{1}{16+x^{2'}}$$-\infty<x<\infty$\[\]is a p.d.f of a continuous random variable $X,$ then the value of $A$ is

asked May 28, 2013 by poojasapani_1

1 answer

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