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quinhydrone half cell reaction is reversible to a)H+ b) quinone c) quinol ...

1.12 ml of a gas is produced at S.T.P. by the action of 4.12 mg of alcohol, ROH, with methyl magnesium iodide. find the molecular mass of alcohol. ...

What molar concentration of HCO3- can exist in arterial blood at pH 7.35 when molar concentration of CO2 in blood is 2.2*10-2 ...

explain water voltameter and silver voltameter ...

When 500ml of 0.2M KOH reacts with 500ml of 0.02M HCl, rise in temp. is T1. When 250ml 0.2M KOH reacts with 250ml 0.2M HCl, the temp. increase is T2. The temperature T1 and T2 are related as: (a) T1=T2 (b) T1=2T2 (c) T1=4T2 ( ...

∫dx/[(1+√x)√(x - x2)] ...

∫ sec4x. dx. ans= 2/3 tan3x ...

Which of the following alkali metal hydrides has the lowest lattice energy ? a. LiF b.NaCl c.KBr d.CsI ...

Arrange Primary, Secondary and tertiary Amines in order of basicity. ...

The C-Cl dist. In H3C-Cl & F3C-Cl are 1.78A and 1.75A. Explain. ...

i have little problems regarding finding the maximum and minumum values of trigonometrical functions...i would like a little help on this one....if perhaps u can provide me wih some notes having detail explanation on this top ...

*Image* For Help last (E) is given... Enjoy!! [4] ...

|Z|2 = Z + Z - 1 FIND THE LOCUS OF "Z" ANS given : point!!! SORRY!!! ho gaya thread open hote hi closed!! ...

another one.......ncert quest *Image* ...

Q *Image* Q *Image* ...

What is the phase difference, at a given instant of time, between two particles 25 m apart, when the wave y (x, t) = 0.03 sin (2t - 0.01x) travels in a medium ? ...

Two organ pipes, each closed at one end, give 5 beats per second when emitting their fundamental notes. If their lengths are in the ratio of 50 : 51, their fundamental frequencies (in Hz) are? ...

*Image* Paragraph for Questions numbers 14 to 16 : Mass of a string varies with its length as m = 0.1L where m is in kg and L is in cm. A block of mass 5kg is hanging to its lower end. A force F = 12 N acts on the block in ve ...

\int_{0}^{10}f(x)dx{} then\sum_{k=1}^{10}{\int f((k-1)+x)dx}=?? ...

B luvs C, C luvs D, D luvs E, E luvs F, F luvs G, G luvs H, and H luvs A.... and 'I' have fallen in luv wid A..... a great love polygon .... no couple yet!! .... wat is the probability dat A will luv me ?? ...

*Image* two particles A and B of the same mass are joined by a light string and placed on a horizontal surface. An external horizontal force P acts on A. the tension in the string is T. the force of friction acting on A and B ...

propene to propyne ethanol to butyne ...

WELL THIS MIGHT SEEM ILLOGOCAL TO FEW PEOPLE BUT I KNOW THAT MOST OF THEM DONNO THIS. BUT VERY USEFUL IN SOME PROBLEMS. in a triangle ABC, medianof BC , AD is drawn. what is lengthof AD? { in terms of a,b,c ,} D is mid point ...

WELL THIS MIGHT SEEM ILLOGOCAL TO FEW PEOPLE BUT I KNOW THAT MOST OF THEM DONNO THIS. BUT VERY USEFUL IN SOME PROBLEMS. in a triangle ABC, angle bisector of A, AD is drawn. what is lengthof AD? {of course in terms of a,b,c ,A ...

Consider a container which contains just one molecule of a gas. What will happen if you: (1) double the volume keeping temperature constant (2) double the temperature keeping pressure constant? ...

question edited:: find the no. of positive integral pairs of the solution of (x+y)/(1-xy) = 3 i know this shud be in algebra but actually this is one step of an inverse trig. question.... options: (a) one (b) zero (c) two (d) ...

∫dx/x(x^n+1) ...

In YDSE both slits produce equal intensities on the screen.A 100% transparent film is placed in front of one of the slits.Now the intensity on the center of screen becomes 75% of previous intensity.The wavelength of light is ...

y= Sin-1( x ) + Cos-1( x ) ...

Solve x(1-x^2{})dy+(2x^2{}y-y-5x^3{})dx=0 ...