An organic compound A upon reacting with NH3 gives B. On heating B gives C. C in presence of KOH reacts with Br2 to give CH3CH2NH2. A is
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(lim)x0((1−cos2x)xtan4x3+cosx is equal to:
A red LED emits light at 0.1 watt uniformly around it. The amplitude of the electric field of the light at a distance of 1 m from the diode is :
The number of integers greater than 6,000 that can be formed, using the digits 3,5,6,7and8, without repetition, is :
The real number k for which the equation, 2x3+3x+k=0has two distinct real roots in [0, 1]
Let C be the circle with centre at (1, 1) and radius = 1. If T is the circle centred at (0, y), passing through origin and touching the circle C externally, then the radius of T is equal to
Which of the following is the wrong statement?
The distance of the point (1, 0, 2) from the point of intersection of the line 3x−2=4y+1=12z−2and the plane x y + z = 16, is :
Which one of the following molecules is expected to exhibit diamagnetic behaviour?