આથી, $\begin{gathered} \,X\,\, + \,\,\,\,5\,\left( 0 \right)\,\,\, + \,\,\,\,1\left( { + 1} \right)\,\,\,\, + \,\,1\left( { - 2} \right) = 0 \hfill \\ \left( {Fe} \right)\,\,\left( {{H_2}O} \right)\,\,\,\,\left( {NO} \right)\,\,\left( {SO_4^{2 - }} \right) \hfill \\ \end{gathered} $
$\therefore X = + 1$
${H_2}\mathop S\limits^{ } {O_4}\,\,\,\,\, \to \,\,\,\,\,\mathop S\limits^{ } {O_2}$
સૂચિ-$I$ (પ્રક્રિયા) |
સૂચિ-$II$ (રેડોક્ષ પ્રક્રિયાનો પ્રકાર) |
$(A)$ $\mathrm{N}_{2(\mathrm{~g})}+\mathrm{O}_{2(\mathrm{~g})} \rightarrow 2 \mathrm{NO}_{(\mathrm{g})}$ | $(I)$ વિધટન |
$(B)$ $\begin{aligned} & 2 \mathrm{~Pb}\left(\mathrm{NO}_3\right)_{2(\mathrm{~s})} \rightarrow 2 \mathrm{PbO}_{(\mathrm{s})}+4 \mathrm{NO}_{2(\mathrm{~g})}+\mathrm{O}_{2(\mathrm{~g})}\end{aligned}$ | $(II)$ વિસ્થાપન |
$(C)$ $\begin{aligned} 2 \mathrm{Na}_{(\mathrm{s})}+2 \mathrm{H}_2 \mathrm{O}_{(\mathrm{l})} \rightarrow 2 \mathrm{NaOH}_{(\mathrm{aq} .)}+\mathrm{H}_{2(\mathrm{~g})}\end{aligned}$ | $(III)$ અસમાનુપાતીકરણ (વિષમીક૨ણ) |
$(D)$ $\begin{aligned} 2 \mathrm{NO}_{2(\mathrm{~g})}+2-\mathrm{OH}_{(\mathrm{aq})} \rightarrow \mathrm{NO}_{2(\mathrm{aq} .)}^{-}+\mathrm{NO}_{3(\mathrm{qq} .)}^{-}+\mathrm{H}_2 \mathrm{O}_{(\mathrm{l})}\end{aligned}$ | $(IV)$ સંયોગીકરણ |
નીચે આપેલા વિકલ્પોમાંથી સાચો જવાબ પસંદ કરો.
$C + {O_2} \to C{O_2};\Delta H = - 393\,J$
$2Zn + {O_2} \to 2ZnO;\Delta H = - 412\,J$
$Fe\, + \,{H_2}O\, \to \,F{e_3}{O_4}\, + \,{H_2}$