Chemistry-
General
Easy
Question
Which one is the most easily dehydrated?
I) 
II) 
III) 
- (I)
- (II)
- (III)
- All are equally dehydrated
The correct answer is: (I)
So (I) is the most easily hydrated
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The products (c) and (D) are:
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In which of the following, the 
is maximum?
In which of the following, the is maximum?
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In the reaction:
Reagent used is:
In the reaction:
Reagent used is:
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Intermediate (B) and product (C) are:
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Two blocks A and B each of mass m are connected by a massless spring of natural length L and spring constant k. The blocks are initially resting on a smooth horizontal floor with the spring as its natural length, as shown in figure.
A) third identical block C, also of mass m moves on the floor with a speed v along the line joining A and B collides with A, elastically, then
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One end of a spring of force constant k is fixed to a vertical wall and the other to a block of mass m resting on a smooth horizontal surface. There is another wall at a distance x0 from the block. The spring is then compressed by 2x0 and released. The time taken to strike the wall is
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Physics-General
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A spring is loaded with two blocks m1 and m2 where m1 is rigidly fixed with the spring and m2 is just kept on the block m1 as shown in the figure. The maximum energy of oscillation that is possible for the system having the block m2 in contact with m1 is
A spring is loaded with two blocks m1 and m2 where m1 is rigidly fixed with the spring and m2 is just kept on the block m1 as shown in the figure. The maximum energy of oscillation that is possible for the system having the block m2 in contact with m1 is
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Minimum and maximum values of F to keep the cylinder in static equilibrium just after the water starts to spill through the hole. If the co-efficient of static friction between contact surfaces is 0.01.
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A flat plate of height 1m and width 1m is hinged at its middle as shown in the figure. To the left of the plate is a liquid of density 
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For the flat surface discussed in the passage, the total torque of the hydrostatic force about point ‘O’ is
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A closed vessel is half filled with water. There is a hole near the top of the vessel and air is pumped out from this hole.
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Physics-General
