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lead [4 ] oxide is obtained by : ...

If A and B are two independent events such taht P(A)>0 and P(B)≠1 ,then P(A/B)= ? ...

have you read reflections .... the magazine brought out by the admins of this site?? check it out.... http://reflections.targetiit.com/ well going through it i came across a sum and the solution... iam posting both of them... ...

thnx avik ...

The rate constant of a reaction at temperature 200K is 10 times less than the rate constant at 400K, find the activation energy of the reaction ...

Want to join a crash course....in delhi,...??? Confused b/w narayana and fitjee....... need ur suggestions guys.... ...

Its a very easy question. it came in my board xams,so i want to confirm the answer. please help:) *Image* ...

*Image* take aA=4m/s2 vA=6m/s2 lenth of ladder as 16m ...

I was surprised....noone started a thread, don't neglect English (It is the % maker) :P Anyways....Kaisa tha ? [173] Also,,, How is my New Shirt....? :D ...

Ques 1) Among the following, the optically inactive compound is *Image* Ques 2) The binapthol (Bnp) is *Image* (a) an optically active compound having chiral centre (b)an optically inactive compound (c) a meso compound ( d)an ...

R these topics in Syllabus ?? DIFFRACTION ...

*Image* a unoform magnetic filed of intensity 1T is appiled in a circular region of radius 0.1m directed in the plane of the paper . a charged particle of mass 5x10^-5 kg nd charge q=5x10^-4C enters the field with a velocity ...

*Image* Now, how do we explain this, Lowest Sum or Priority ....? ...

if y = x/ln|cx| where c is a arbitrary constant, is the general son. of differential equation dy/dx = y/x + \phi \left(\frac{x}{y} \right) , then the function \phi \left(\frac{x}{y} \right) is--- ans.----> - y2/x2 ...

5. The solution of the differential equation cos2 xdy/dx+y = tan x is (a) y = tanx + ce–tan x (b) y = (tanx + 1) + cetanx (c) y = (tanx – 1) + cetanx (d) y = (tanx – 1) + ce–tanx 6. The solution of the differential eq ...

Find the probability distribution of the number obtained by throwing a dice once ...

\int \frac{sinx+sin^{3}x}{cos2x}dx = Acosx + Blog\left|f(x) \right| + c A) A=1/4,B=-\frac{1}{\sqrt{2}}, f(x)=\frac{\sqrt{2}cosx -1}{\sqrt{2}cosx +1} B) A=1/2,B=-\frac{3}{4\sqrt{2}}, f(x)=\frac{\sqrt{2}cosx +1}{\sqrt{2}cosx -1 ...

\int \frac{1}{2e^{2x}+3e^{x}+1}dx ans ------> -\frac{1}{2}log\left| e^{-2x}+3e^{-x}+2 \right| + \frac{3}{2}log \left|\frac{e^{-x}+1}{e^{-x}+2} \right| + c ...

2. 1-x2 + 1-y2 = a(x-y) then dy/dx is a) (1-x2)/(1-y2) b) (1-y2)/ (1-x2) c) ( 1-x2)/(1-y2 ) d) 1-y2)/ (1-x2) ...

\int \frac{t. ( 1- t ^2 ) ^{\frac{-7}{4}}}{ \sqrt{t + 4 }.\sqrt{1- t^2 }+ \sqrt{t+ 5 }.\sqrt{1- t^2}} ...

i am tired to open book right now... so please tell hw to name these compounds as *Image* i mean IUPAC NAME ...

*Image* ...

*Image* ...

\int \left(\frac{cotx+cosecx-1}{cotx - cosecx+1} \right)dx ans ------> ln\left|2sin^{2}\frac{x}{2} \right|+c ...

CONFUSED IN STEREOCHEMISTRY......HELP ME .... *Image* ...

A saturated soln of H2S is 0.1M HCl at 25C contains S2- concentration of 10-23 M.The solublity product of CuS and CdS are 10-44 and 10-25.If 0.01 M solns of salts in 0.1M HCl are saturated with H2S,which will be precipitated? ...

IN A POLAR REGION TEMP. OF ATMOSPHERE HAS FALLEN BELOW 0°C AND IT HAS BECOME -T°C THEN WHICH OF THESE IS/R CORRECT? a>RATIO OF TIME TAKEN IN FORMATION OF ICE ON FREE SURFACE OF THICKNESS FIRST 1 M AND SECOND 1M IS 1:4 B& ...

What is the difference between radial and angular acceleration ?? ...

Q1. \int_{-1}^{1}{\frac{d(tan^{-1}\frac{1}{x})}{dx}dx} Q2. \int_{-1}^{3}{(tan^{-1}\frac{x^2+1}{x}+tan^{-1}\frac{x}{x^2+1})dx} ...

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