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What is $'X'$ in the given reaction?
→$\begin{array}{*{20}{c}} {C{H_2}OH} \\ {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ {C{H_2}OH} \end{array}$ $+$ oxalic acid $\xrightarrow{{{{210}^o}C}}$ $\quad\quad X$
$\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad$(major product)
$A + B \to $ products, it is found that the rate of the reaction is proportional to the concentration of $A,$ but it is independent of the concentration of $B$, then
→A photo-cell employs photoelectric effect to convert:
Product $(E)$ is
→A battery is constructed of $Cr$ and $Na_2Cr_2O_7.$ The unbalanced chemical equation when such a battery discharges is following: $Na_2Cr_2O_7 + Cr + H^+ \to Cr^{3+} + H_2O+ Na^+$
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Order of liquification of noble gases is
Acetone reacts with ${I_2}$ in presence of $NaOH$ to form
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→Nucleophilic addition reaction will be most favoured in