The threshold energy for any chemical reaction is :

Molarity of $0.2\,N\,\,{H_2}S{O_4}$ is

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Compound $(X)\, C_4 H_8O,$ which reacts with $2, 4-DNP$ derivative and gives negative haloform test is

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Which of the following will react faster through $S_{N} 1$ mechanism ?

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A positive carbylamine test is given by :-

$(a)$ $N,N-$ Dimethylaniline

$(b)$ $2,4 -$ Dimethylaniline

$(c)$ $N -$ methy $l-o-$ methylaniline

$(d)$ $p -$ Methylbenzylamine

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The most reactive towards $S_{N_1}$ is:

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Among the oxides of nitrogen $N_2O_3,\,N_2O_4$ and $N_2O_5;$ the molecule $(s)$ having nitrogen-nitrogen bond is/are

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The molality of $15\% \,(w/V)$ solution of $H_2SO_4$ with density $1.1\, g/cm^3,$ is

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When ethyl alcohol reacts with acetic acid, the products formed are

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Which of the following will not act as oxidising agents?
$a. \text{CrO}_3$
$b. \text{MoO}_3$
$c. \text{MoO}_3$
$d. \text{CrO}_4^{2-}$

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Which graph correct correlates $E_{cell}$ as a function of concentrations for the cell (for different values of $M$ and $M'$) :-

$Zn(s) + Cu^{2+}(M) \to Zn^{2+}(M') + Cu(s);$ $E^o _{cell} = 1.10\,V$

$X$-axis :$log_{10}$ $\frac{{[Z{n^{2 + }}]}}{{[C{u^{2 + }}]}}$, $Y$ -axis : $E_{cell}$

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Answer