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what does a secondary benzylic mean when used to desribe a carbenium ion? ...

*Image* Which reagent will show faster rate of dissapearance of alkyl halide? a)CN- b)HS- c)both at same rate ...

A man of 60kg is standing on a horz conveyer belt The belt is having a horz accelration of 1m/s2,the man remains stationary wrt moving belt.If g=10m/s2,the net force on man is ??????? Answer gi ...

A loop of rope is whirled at a height with angular velocity omega,so that it becomes taut in a circle of radius R.A kink develops in whirling rope.Find the speed of kink in the rope. Under what conditions does the kink remain ...

A particle of mass 1kg is moving on inner surface of track y=x^2 as it pass es from the point (3/8 ,9/64) with constant speed 2 2 m/s.Find friction force at P and find the normal force by surface (if radius of curvature a ...

Why is acetone best solvent for reaction between alkyl chloride and pottasium iodide? ...

forgive for asking this question. it is not related to subjects. my scroll bar appears to be get displaced from its original position only when i open others profile.can anybody help me to recover from this problem. ...

Can the electron involved in photoelectric effect be a free electron? Answer with reason ...

A spring mass system is held at rest with the spring relaxed at height H above the ground.Determine min. value of H so that given system has tendency to rebound after hitting the ground. Given coeff of restitutuion between m2 ...

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A thin hollow equiconvex lens silvered at the back converges a parallel beam of light, at a distance of 0.2m in front of it. Where will it converge the same light, if filled with water (µ = 4/3). ...

Hello, I missed the first three tests. Is it possible for me to atleast get the paper? ...

Σk=0 to r rCk×(2n-r)C(n-k) = 2nCn ...

How about all of us coming here ... online on the 31st mid-nite... For all random chaos and no studies or discussions related to it (just to dedicate all the time of the next year to studies ;) ...

90 gm of a metal reacts with 80 gm of oxygen to form metal oxide. The metal oxide requires 20 litre of 1/3 N of oxidizing agent to oxidise to M5+. The molecular weight of the metal is ...

*Image* There are 6 slots filled with 1 , 0 in the above order.Now you can operate on any two adjacent sectors and increase the values of both by 1 at a time.you can change the values of two adjacent sectors only at a time.Is ...

{x}+[x] = 5 {x}-[x] ...

A number of six digit numbers are written down at random.Probability that sum of digits is even is ...

wat is surface tension is it netforce acting per unit length can u please show me the force acting on a thin blade when placed it on the surface of the water please explain the excess pressure inside the air bubble and an air ...

a very broad elevator is going up vertically with a constant acceleration of 2m/s^2 .At the instant when its velocity is 4m/s a ball is projected from the floor of the lift with a speed of 4m/s relative to the floor at an ele ...

A ball of mass m moving with speed v makes head on collision with identical ball at rest.The KE of the balls after collision is 3/4 of original KE.Calculate e. ...

FInd the moment of inertia of hollow cone of mass m,height h and apex angle 2@ about the central axis of symmetry. ...

Two blocks mass m and 2m are kept on smooth horz surface and connected to each other using spring of "k".Initially spring is unstretched.A constant horz. force F applied to heavier block .Suppose at time t , displacem ...

(1+cosx+isinx/1+cosx-isinx)n= ...

Two equal spherical bubbles(radius=a) coalease to form a spherical bubble of radius b.If P is atmospheric pressure,then the surface tension of bubble is???????? ...

A particle moves from rest at A on the surface of a smooth circular cylinder of radius R .At B it leaves the cylinder.The equation relating alpha and beta is?? *Image* ...

All the spades are taken out froma a pack of cards.From these cards , cards are drawn one by one with out replacement till the ace of spades comes. the probability that the ace comes in the 4th draw is a)1/13 b)12/13 c)4/13 d ...

Assume that the centre of mass of a boy crouching in a little swing has been raised to 1.2m.The boy has his centre of mass at 3.7m from the pivot of the swing while he is in crouched position.The swing is released from bottom ...

there have been many bad incidents(singur n mumbai n many...) for which 2008 will be rememberd always... but y not leave cursing the year onthe very last day and try to remember its god moments... think a little.. u will find ...

Question: A convex surface of a thin concavo-convex lenx lens of glass of refractive index 1.5 has a radius of curvature 20cm. The concave surface has a radius of curvature 60 cm. The convex side is silvered and placed horizo ...