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JEE Main Mock 101
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Question 1
Pyrolusite is MnO2 used to prepare KMnO4, steps are MnO2 MnO42– MnO4–
I and II are–
I and II are–
Question 2
An octahedral complex is formed when hybrid orbitals of the following type are involved
Question 3
Which of the following is not the correct relationship
Question 4
A, which of the following statements is true about this reaction ?
Question 5
A piece of cloth, of length 10 metres, is to be randomly distributed among three brothers, the probability that no one gets more than 4 metres of cloth is –
Question 6
If a2 (b+ c), b2 (c+ a), c2 (a+ b) are in A.P., then
Question 7
If the coefficients of (2r + 4)th, (r – 2)th terms in the expansion of (1 + x)18 are equal, then r is-
Question 8
If in a frequency distribution, the mean and median are 21 and 22 respectively, then its mode is approximately
Question 9
The diagram shows three infinitely long uniform line charges placed on the X, Y and Z axis. The work done in moving a unit positive charge from (1, 1, 1) to (0, 1, 1) is equal to-
Question 10
The diagram shows a small bead of mass m carrying charge Q. The bead can freely move on the smooth fixed ring placed on a smooth horizontal plane. In the same plane a charge +Q has also been fixed as shown. The potential at the point P due to +Q is V. The velocity with which the bead should projected from the point P so that it can complete a circle should be greater than -
Question 11
A semi circular current carrying wire having radius R is placed in x-y plane with its centre at origin 'O'. There is non-uniform magnetic field = (here B0 is +ve constant) is existing in the region. The magnetic force acting on semi circular wire will be along –
Question 12
Find the work and power required to move the conductor of length ℓ shown in the figure. One full turn in the anticlockwise direction at a rotational frequency of n revolutions per second if the magnetic field is of magnitude B0 everywhere and points radially outwards from Z-axis. The figure shows the surface traced by the wire AB.
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Oct 28JEE & BITSAT