In Na_2 [Fe(CN)_5NO], sodium nitroprusside

$\frac{1}{2}C{l_2}(g)\xrightarrow{{\frac{1}{2}{\Delta _{diss}}{H^\Theta }}}Cl(g)\xrightarrow{{{\Delta _{eg}}{H^\Theta }}}$ $C{l^ - }(g)\xrightarrow{{{\Delta _{Hyd}}{H^\Theta }}}C{l^ - }(aq)$

(using the data,

${{\Delta _{diss}}H_{C{l_2}}^\Theta } = 240\,kJ\,mol^{-1}, {{\Delta _{eg}}H_{C{l}}^\Theta }= -349 \,kJ\,mol^{-1},$${{\Delta _{Hyd}}H_{C{l}}^\Theta }= -381 \,kJ\,mol^{-1}$ ) will be ............. $\mathrm{kJ\,mol}^{-1}$

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In a multi-electron atom, which of the following orbitals described by the three quantum members will have the same energy in the absence of magnetic and electric fields

$(1)$ $n = 1,\,l = 0,\,m = 0$

$(2)$ $n = 2,\,l = 0,\,m = 0$

$(3)$ $n = 2,\,l = 1,\,m = 1$

$(4)$ $n = 3,\,l = 2,\,m = 0$

$(5)$ $n = 3,\,l = 2,\,m = 0$

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For the reaction $A + B \to $ products, what will be the order of reaction with respect to $A$ and $B$ ?

Exp.	$[A]\,(mol\,L^{-1})$	$[B]\,(mol\,L^{-1})$	Initial rate $(mol\,L^{-1}\,s^{-1})$
$1.$	$2.5\times 10^{-4}$	$3\times 10^{-5}$	$5\times 10^{-4}$
$2.$	$5\times 10^{-4}$	$6\times 10^{-5}$	$4\times 10^{-3}$
$3.$	$1\times 10^{-3}$	$6\times 10^{-5}$	$1.6\times 10^{-2}$