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In the reaction : the product E is

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An organic compound A upon reacting with NH3 gives B. On heating B gives C. C in presence of KOH reacts with $Br_{2}to giveCH_{3}CH_{2}NH_{2}.$ A is

A pendulum made of a uniform wire of cross sectional are A has time period T. When an additional mass M is added to its bob, the time period changes to $T_{M}$. If the Young's modulus of the material of the wire is Y then $Y1 $ is equal to : (g = gravitational acceleration)

The rate of a reaction doubles when its temperature changes from 300K to 310K. Activation energy of such a reaction will be: $(R=8.314JK_{−1}mol_{−1}andg2=0.301)$

Which of the following compounds will exhibit geometrical isomerism ?

Let $[ϵ_{0}]$ denote the dimensional formula of the permittivity of vacuum. If M = mass, L = length, T = time and A = electric current, then:

The angle between the lines whose direction cosines satisfy the equations $l+m+n=0$and $l_{2}=m_{2}+n_{2}$is

The intercepts on x-axis made by tangents to the curve, $y=∫_{0}∣t∣dt,x∈R,$which are parallel to the line $y=2x$, are equal to

Two short bar magnets of length 1 cm each have magnetic moments $1.20Am_{2}and1.00Am_{2}$ respectively. They are placed on a horizontal table parallel to each other with their N poles pointing towards the South. They have a common magnetic equator and are separated by a distance of 20.0 cm. The value of the resultant horizontal magnetic induction at the mid - point O of the line joining their centres is close to (Horizontal component of earths magnetic induction is $3.6×10_{−5}Wb/m_{2})$