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CH3NHCH2CHO+CH3MgBr-> ? ...

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it was a simple sum but its aftermath wa too much d/dx of under root 1-cos2x/1=cos2x (means whole function under root) easily solved it to tan^x now under root means tan x so answer sec^2 x simple but not the right answer ans ...

A tribromobenzene gives 2 isomers when mononitrated.Why can't the compound be 1,2,4 - tribromobenzene? ...

Does wavelength of light depend on temperature? Just asking coz if it would depend then fringe width should also depend on temperature... ??? ...

PICK THE ODD ONE OUT A)668 B)776 C)848 D)665 I WANT THE ANSWER WITH REASON ...

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Discuss continuity of e[log{l{x2}l2}] and draw its graph where all brackets have their usual meaning... dont hesitate to tell me if it is not solvable at our level ...

Out of (m+1) given integers two of them can always be chosen such that there (a) difference is divisible by m (b) Sum is divisible by m (c) Product is divisible by m (d)none of these ...

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A hypothetical mag field existing in a ragion is given by \vec{B}=B_{0}\vec{e_{r}} wer e_{r} denotes unit vector along the radial direction of a point relative to the origin and B0=constant.....A circular loop of raduis a car ...

why is cyclohexane more stable than cyclopentane ...

Which water will be more acidic: a simple rainwater or that accompanied with thunderstorm? ...

if 1=5 2=25 3=125 4=625 5=? ...

Assertion :In an atwood machine when the masses r in motion , for a heavy rough pulley tension on both side of pulley r different Reason : Acceleration of both masses r different *Image* ...

hey dude i hv qualified for the 2n stage and hv 1 month to prepare my physics is kkk for maths what to study and how much to study in astronomy and what to study can anyone give me the link of the papers ...

i bought a book an introduction to mechanics by kleppner and i think its a very gud buk both for physics olympaids and iits however it has only mechanics can anyone give me buk on the same level or a basic guide of the contem ...

A particle is projected from ground with speed "u" such that the horizontal range is "R" and the maximum height is "H". The angular velocity of the particle about the point of projection, when it is at the highest point of it ...

A very Happy and prosperous New Year to all. - Your friendly neighbour The Dark Knight ...

If AB = a, AD = b, AC = 2b+ 3c & the area of quadrialteral ABCD is β times the area of ||gm whose adjacent sides are a, b. find the value of β. Here, a represents vector a, AC represents vector AC. ...

Is this solvable ?? Find no of ways by which we can stack 12 coins in a line so that each coin lies on table or on 2 coins ...

A stack of 2000 cards is labeled with the integers from 1 to 2000, with different integers on different cards. The cards in the stack are not in numerical order. The top card is removed from the stack and placed on the table, ...

http://photos1.blogger.com/photoInclude/blogger/3775/203/1600/suhas.jpg.bangalore boy Suhas Gopinath launched Globals Inc at 14. Today, his firm is a 60-member strong with all of them aged 17 to 22 years. It was Catch-22 with ...

Which of the following ionisation energy order is/are correct : (A) F > cL- (B) F > cL (C) cL>F - (D) CL - > F - ...

If both product and sum of 2 positive reals are integers, are these reals necessarily integers individually? ...

There is a section in Redox reactions Paradox of fractional oxidation no.I have understood the concept but i could not understand one thing that how do we calculate the real oxidation numbers of elements in a compoud.could an ...

can any one explain what is lepton number ??? and give any usefull formulae relating to it ?? guys please help .. and guess what it was on ISAT sample paper 2010 !! ...

Just like mass and charge, each particle has a quantity called “Lepton Number”. The table below gives charge and Lepton number of some particles. Like charge, lepton number should be conserved in any physical process. ((p ...

1) a weak base BOH is titrated with st acid .The pH at 1/4th equivalence point was 9.24.Enough strong base(6 meq) was now added to completely convert the salt.the total voume was 50ml.find pH at the point 2)A soln is saturate ...