MCQ
A sodium cation has a different number of electrons from
- A${O^{2 - }}$
- B${F^ - }$
- ✓$L{i^ - }$
- D$A{l^{3 + }}$
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$HCl_{ ( g )}$ are $-105,-242,-394$ and $-92\,kJ\,mol ^{-1}$
respectively. The magnitude of enthalpy of the reaction given below is $......kJ\,mol ^{-1}$
(nearest integer) $CCl _{4( g )}+2 H _2 O_{( g )} \rightarrow CO _{2( g )}+4 HCl_{( g )}$
$Ca{C_2}\xrightarrow{{{H_2}O}}A\mathop {\xrightarrow{{{\text{dil}}{\text{. }}{H_2}S{O_4}}}}\limits_{H{g^{ + + }}} B\mathop {\xrightarrow{{Ni}}}\limits_{{H_2}} C$

