Newest Questions

Nitrogen at bridgehead act as lewis base but how?? If nitrogen will give its lone pair then positive charge will appear on bridgehead and it will become sp2 which is not possible... Then how?? ...

64 players play in a knockout tournament. Assuming all players are of equal strength, probabilty that P1 loses to P2 and P3 becomes eventual winner is? ...

Given: Ag(NH3)2 1Ag+2NH3, Kc=6.2*10^-8 and Ksp of AgCl=1.8*10^-10 at 298K. if ammonia is added to water solution containing excess of Agcl(s) only .Calculate the concentration of complex in 1M aqueous ammonia ...

Tell me somebody how to integrate this How to integrate dv/ v2+ 2v,??? ...

Figure (15-E11) shows a string stretched by a block going over a pulley. The string vibrates in its tenth harmonic in unison with a particular tuning fork. When a beaker containing water is brought under the block so that the ...

A circle which contain a quadrelateral of maximum area and this quadralateral is contain a triangle of maximum area..IF triangle has its side of 4cm. Then find out all side of quadralateral and diameter of circle. ...

A variable tangent of ellipse x^2/a^2 + y^2/b^2 =1 Meets co-ordinate axes at point A & B, then find the min. Area of circumcircle of triangle OAB??? ...

Prove that two of the straight lines represented by equation ax^3 + bx^2y + cxy^2 + dy^3 =0 will be at right angled if a^2 + ac + bd + d^2 =0. ...

a square is inscribed in a circle x2+y2-2x+4y+3=0, whose sides are parallel to the coordinates axes one vertex of the square is? ...

*Image* ...

the magnetic field due to current carrying circular loop of radius 3cm at a point on the axis at a distance of 4cm from the centre is 54 micro tesla. what will be its value at the centre of the loop ...

does propan-2-ol give iodoform test ? confused about it. So thought of asking it here. Really confused about it hmm?? ...

If m1 and m2 are the roots of the equation x^2+(√3+2)x+√3-1=0.then find the area of the triangle formed by the lines y=m1x,y=m2x and y=c. ...

At 200 degree Celsius pcl5 dissociate as follows pcl5= pcl3 +cl2 .it was found that the equilibrium vapours are 62 times as heavy as hydrogen .The degree of dissociation of pcl5 at 200 degree Celsius is ...

What would be the sum of nck + nc2k + nc3k + nc4k ...

How many pluses should we put between the digits of 987,654,321 to get a total of 99, and where? ...

3 solid hemispheres, each of radius (R) are placed in contact with each other, side by side, such that their flat surfaces rest on the rough horizontal ground . a solid sphere of mass(m) is symmetrically placed on the top of ...

Find the locus of the midpoint of the chord of the circle x^2 + y^2 = a^2 which subtends a 90° angle at point (p,q) lying inside the circle. ...

does tropyillym carbocation have a dipole moment? i dont think it has , but can resonance nullify it?? ...

Help me with this. I need it urgently. And I want full solution ...

Well sir/madam i would like to ask you that in the current year 2016 i appeared for jee mains but was unsuccessful to clear it however i cleared VIT univ exam and even got my trait there but i can't choose wheather to drop an ...

If the velocity v of a particle moving along a straight line decreases linearly woth its displacement s from 20 metre per second to a value approaching zero at s=30 metre, then acceleration of the particle at s =15 metre is ...

There are 50 birds on a tree. A hunter shot at them with a rifle and three birds fell dead.Howmanybirds were left on the tree? ...

A block is dragged on a smooth plane with the help of a rope which moves with velocity v shown in Fig. The horizontal velocity of the block is ...

A parallel plate capacitor of area 60cm^2 and separation 3mm is charged initially at 90 micro coulomb. If the medium between the plates get slightly conducting and the plate loses charge initially at the rate of 2.5 *10^-8 C ...

How do you accurately weigh a small puppy with just a standard household step-on weigh scaleif the puppy is extremely lively and does not stay still? ...

Hundreds of years ago, a thief was charged with treason against a Roman emperor andsentenced to death. The emperor, feeling slightly merciful, asked the man how he would like todie. Consider yourself in the same situation and ...

A sphere of mass m held at a height 2R between a wedge of same mass and a rigid wall,is released from rest.Assuming all the surfaces are frictionless.Find the speed of both the bodies when the sphere hits the ground *Image* ...

a block of mass m produces an extension of 9cm in an elastic spring of length 60cm when it is hung by it, and the system is in equilibrium. the spring is cut in two parts of 40cm and 20cm lengths, the same block hangs in equi ...

n identical waves each of intensity I interfere with each other.The ratio of maximum intensities if the interference is (i) coherent and (ii) incoherent is a.n^2 b.1/n c.1/n^2 d.n ...