- AThe oxidation number of oxygen in $K{O_2}$ is zero
- ✓The specific conductance of an electrolyte solution decreases with increase in dilution
- C$S{n^{2 + }}$ oxidises $F{e^{3 + }}$
- D$Zn/ZnS{O_4}$ is a reference electrode
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
(Given atomic number: $\mathrm{C}: 6, \mathrm{Na}: 11, \mathrm{O}: 8$, $\mathrm{Fe}: 26, \mathrm{Cr}: 24 \mathrm{~J}$
|
List $- I$ |
List $- II$ |
| $(a)$ Zymase | $(i)$ Stomach |
| $(b)$ Diastase | $(ii)$ Yeast |
| $(c)$ Urease | $(iii)$ Malt |
| $(d)$ Pepsin | $(iv)$ Soyabean |
Choose the correct answer from the options given below
${A_2}B(g) \to {A_2}(g) + B(g);\,\,\,\Delta {H^o} = 40\,kJ/mol$
${A_2}B(g) \to A(g) + AB(g);\,\,\,\Delta {H^o} = 50\,kJ/mol$
.....$ kJ/mol$

$Cu ( s )+ Sn ^{2+}( aq ) \rightarrow Cu ^{2+}( aq )+ Sn ( s )$
$\left( E _{ Sn ^{2+} \mid Sn }^{0}=-0.16\, V , E _{ Cu ^{2+} \mid Cu }^{0}=0.34\, V \right.$ Take $F=96500\, C\, mol ^{-1}$ )
${C_{(gr)}} + {O_{2(g)}} \to C{O_{2(g)}}\,\,\,\Delta H = x\,kJ/mol$
${C_{(gr)}} + \frac{1}{2}{O_{2(g)}} \to C{O_{(g)}}\,\,\,\Delta H = y\,kJ/mol$
$C{O_{(g)}} + \frac{1}{2}{O_{2(g)}} \to C{O_2}_{(g)}\,\,\,\Delta H = z\,kJ/mol$