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In which of the following reactions $H_{2}O_{2}$ acts as a reducing agent ?

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The area (in sq. units) of the region described by ${(x,y):y_{2}≤2x$and $y≥4x−1}$is :

Higher order $(>3)$ reactions are rare due to :

Statement - I : The value of the integral $∫_{π/6}1+tanx dx $is equal to $6π $.Statement - II : $∫_{a}f(x)dx=∫_{a}f(a+b−x)dx˙$

Compound (A), $C_{8}H_{9}Br,$ gives a white precipitate when warmed with alcoholic $AgNO_{3}.$ Oxidation of (A) gives a acid (B), $C_{8}H_{6}O_{4}.$ (B) easily forms anhydride on heating. Identify the compound (A).

If $a∈R$and the equation $−3(x−[x])_{2}+2(x−[x])+a_{2}=0$(where [x] denotes the greatest integer x) has no integral solution, then all possible values of a lie in the interval

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

The magnetic field in a travelling electromagnetic wave has a peak value of 20 nT. The peak value of electric field strength is :

In which of the following pairs of molecules/ions, both the species are not likely to exist?