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find the number of surjections from A to B where A={1,2,3,4} and B= {a,b,c} . please explain :) ...

Pls explain why major nitration pdt. is para to Cl in both the cases given below. *Image* ...

Q1 A heavy body of mass 10 kg is to be dragged along a horizontal plane(μ=1/√3).The least force required is a) 50/√3 N b) 100/√3 N c) 50 N d) 100 N ...

*Image* Is keto- prefix.. allowed?? ...

will an amino group attached to the benzene ring makes it sensitive to oxidation ...

what is caro's acid ...

Reimer-Tiemann reaction of phenol with CCl4 in NaOH at 340K gives salicylic acid as major product-----1 The reaction occurs througjh formation of dichloro carbene.. 2 I marked it as B but answer given: The reason is nucleophi ...

How to find the sum of the following series- (1)1/1x2+1/2x3+1/3x4+...upto n terms (2)52+62+72+...202 (3)12+(12+22)+(12+22+32)+...upto n terms. Please give proper methods. ...

Reimer-Tiemann reaction of phenol with CCl4 in NaOH at 340K gives salicylic acid as major product-----1 The reaction occurs througjh formation of dichloro carbene.. 2 I marked it as B but answer given: The reason is nucleophi ...

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*Image* a smooth hollow right circular cone has a vertical angle 2θ & is placed with its vertex downwards as shown it is rotated about its axis with a frequencyn a body dropped into it along d edge slides a little distance & ...

In which solid the velocity of sound is greater? ...

plz tell me all types of methods to find the sum of special series and all other types of series ...

Hey everyone, I wanna know wat % of paper u ppl are targeting to attempt? Will you attempt oly absolutely sure stuff or will ya take a few calculated guesses? If yes,how many? (Assuming of course that jee 2009 is pretty much ...

*Image* find the product(subjective type, aactually its hectic to sketch all the options ...

In hexagonal systems of crystals, a frequently encountered arrangement of atoms is described as a hexagonal prism. Here, the top and bottom of the cell are regular hexagons and three atoms are sandwiched in between them. A sp ...

a NCERT ques.- if z1=2-i,z2=1+i, find modulus[(z1+z2+1)/(z1-z2+i)] ...

the no. of rational points on a circle having centre at (Î ,e) is_____ ...

*Image* will it reduce tollens reagent? ...

What amount of heat will be generated in the circuit shown after the switch Sw is shifted from position 1 to position 2? *Image* ...

from an arbitrary point p on the circle x2+y2=9,tangents are drawn the circle x2+y2=1 andwhich meet the circle x2+y2=9 at A and B .locus of points of intersection of tangents from A and B. is (subjective type) ...

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Most of you have already found the Reflections site.. I guess chetan did.. but just for the information of everyone.. the link is http://reflections.targetiit.com The site is functional .. but there are a lot of grammatical m ...

pls explain me in detail abt forward slipping and backward slipping. ...

A RELATION R IS DEFINED FROM A SET A={2,3,4,5} TO A SET B={3,6,7,10} AS FOLLOWS: R={(X,Y):X IS RELATIVELY PRIME TO Y} EXPRESS R AS A SET OF ORDERED PAIRS SOLUTION: R={(2,3),(2,7),(3,7),(3,10),(4,3),(4,7),(5,3),(5,6),(5,7)} IS ...

SIR,TODAY I READ AN ARTICLE AT THE SITE ABOUT A HANDICAPPED IITIAN...I SALUTE HIM. NOW, SIR,SO IS IT SO THAT IITs ALLOW STUDENTS WITH PHYSICAL BARRINGS TO TAKE ADMISSION.PLZ DO TELL. BECOZ I AM A "JUVENILE RHUMETOID ARTHRITIS ...

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If A and B are two mutually DEPENDENT eventws wat deduction can v make?? nething apart frm P(A∩B)≠PA.PB ??? ...