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CH2=CH-CH2-Br is subjected to undergo SN1 and SN2 reactions separately taking C2H5O- as nucleophile in C2H5OH . Now which of the following will be most appropriate ? (a) Both SN1 SN2 give two products (b)Both SN1 SN2 ...

At the banquet of a large conference 'n' people hang their coats on the coat-rack as they enter.At the end of the night,they leave in a drunken stupor,each one randomly putting on a coat without checking that it's ...

draw the graph of 4≤ x2+y2 ≤ 2(lxl + lyl) ...

*Image* Which of the following is correct ? (a) it is unimolecular nucleophilic attack (b) it is bimolecular nucleophilic attack (c) it is internal nucleophilic attack (d) it is unimolecular electrophilic attack ...

If a,b,c,d are the roots of eq. x4+P1x3+P2x2+P3x+P4 =0,then (1+a2)(1+b2)(1+c2)(1+d2) = ? ...

∫sin(x-π/6)sin(2x-π/3)sin(3x-π/2)sin(4x-2π/3)sin(x-5π/6)dx = ? ...

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if f(x) = tan2[pi x/(n2-5n+8)] + cot [(n+m)pi x] (n ε N , m ε Q) is a periodic function with '2a' as its fundamental period then find the set of values of 'm' ? ...

IS THERE INVERSION IN ACYCLIC COMPOUNDS ALSO? LIKE IS THERE INVERSION IN C2H5-NH2??(EXPLAIN THIS) ARRANGE THE FOLLING IN DECREASING ORDEROF DIPOLE MOMENT(EXPLAIN) 1.C2H5-Cl 2.CH2=CH-Cl 3.CH=_ C-Cl(ITS TRIP ...

If y = f(x) =(x+2)/(x-1) , then which of the following is correct ? (a) x = f(y) (b) f(1) = 3 (c) y increases with x for x<1 (d) f is a rational function of x ...

If a,b,c,d are the roots of the equation x4+P1x2+P2x2+P3x+P4=0 then (1+a2)(1+b2)(1+c2)(1+d2)= *Image* *Image* *Image* ...

A stone is dropped into a well and a splash is heard 2.2s later.What is depth of well?? ...

FIND I I=∫ (x2.tan-1x)/(1+x2)3/2 dx ...

A bag contains n white balls & n red balls.Pairs of balls are drawn without replacement until the bag is empty.Find the probability that each pair consists of balls of diff colours. ...

a stick of length l lies on horz .table.It has mass M and is free to move any way on the table.A ball of mass m moving perpendicularly to the stick at a distance d from the centre with speed v collidesw elasticaly. What quant ...

A bead can slide on straight wire and a particle of mass m can is attached to the bead by a light string of length l.The particle is held in contact with the wire with the string taut and then it is let fall.If the bead has m ...

A rectangular loop PQRS made from a uniform wire has length a, width b and mass m. It is free to rotate about the arm PQ, which remains hinged along a horizontal line taken as the y-axis. Take the vertically upward direction ...

A blown up balloon has a volume of 500ml at 278 K.The balloon is distended to its maximum stretching capacity.Determine the min temp above which it will brust. ...

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plot the graph of x2+y2-2|x|-2|y|-2=0 ...

*Image* A long copper wire carries a current i. what is the magnetic field at a distance x from the centre of the wire ...

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A screen is placed at a certain distance from a narrow slit which is illuminated by a parallel beam of monochromatic light of wavelength λ. if d is the width of the slit,what is the angular width of the central maximum? ...

A block of mass 1kg held by a sting is on an inclined plane of inclination 37 degrees. The coeff. of friction (μ) = 0.8. Find the tension in the string. ...

There is a parabolic shaped bridge across a river of width 100m. The highest point of the bridge is 5m above the level of the banks. A car of mass 1000kg is crossing the bridge at a constant speed of 20m/s. Find the force exe ...

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Two point masses m1 and m2 are connected by a spring of natural length l.The spring is compressed such that two point masses touch each other and then they are fastened by a string.Then system is moved with velocity v along t ...

Full form of A.B.C.D.E.F.G. A Boy Can Do Everything For Girl :P But its reverse. G.F.E.D.C.B.A. Try to give its full form (no negative marking) .................................... Just joikng ;) ...