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A solution of (-) –1 - chloro - 1 - phenylethane is toluene racemises slowly in the presence of a small amount of SbCl5, due to the formation of :

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Which polymer is used in the manufacture of paints and lacquers ?

The number of integers greater than $6,000$ that can be formed, using the digits $3,5,6,7and8,$ without repetition, is :

If $[a×bb×cc×a]=λ[abc]_{2}$, then l is equal to

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

Let the population of rabbits surviving at a time t be governed by the differential equation $(dpdtt =21 p(t)−200.$If $p(0)=100$, then p(t) equals

Which compound would give 5 - keto - 2- methyl hexanal upon ozonolysis ?

A complex number z is said to be unimodular if . Suppose $z_{1}$and $z_{2}$are complex numbers such that $2−z_{1}z_{2}z_{1}−2z_{2} $is unimodular and $z_{2}$is not unimodular. Then the point $z_{1}$lies on a :

The statement $(p↔q)$ is