- AIons
- ✓Cation
- CAnion
- DAll of these
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
(Rounded-off to the nearest integer)
[Given $K _{ b }$ for $\left.\left( H _{2} O \right)=0.52\, K\, kg\, mol ^{-1}\right]$
$C{H_4}(g) + 2{O_2}(g) \to C{O_2}(g) + 2{H_ {2}}O(l);$
$\Delta H = - 890.3\,kJ$
How many grams of methane would be required to produce $445.15\, kJ$ of heat of combustion.....$g$
$(1)\,\,\begin{array}{*{20}{c}}
{\,\,\,\,\,\,C{H_3}} \\
| \\
{{C_2}{H_5}C{H_2}C - OC{H_3}} \\
| \\
{\,\,\,\,\,\,\,\,C{H_3}}
\end{array}$
$(2)\,\,\begin{array}{*{20}{c}}
{{C_2}{H_5}C{H_2}C = C{H_2}} \\
{\,\,\,\,|} \\
{\,\,\,\,\,\,\,\,\,\,C{H_3}}
\end{array}$
$(3)\,\,\begin{array}{*{20}{c}}
{{C_2}{H_5}CH = C - C{H_3}} \\
{\,\,\,\,\,\,\,\,\,\,\,|} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_3}}
\end{array}$
| Column $-I$ | Column $-II$ |
| $(A)$ Ionisation potential | $(P)$ $O < F < N$ |
| $(B)$ Electronegativity | $(Q)$ $N < O < F$ |
| $(C)$ $Z_{eff}$ | $(R)$ $O < N < F$ |
| $(D)$ Electron affinity | $(S)$ $N < C< O$ |
Statement $-I :$ The pentavalent oxide of group$- 15$ element. $E _{2} O _{5}$. is less acidic than trivalent oxide. $E _{2} O _{3}$. of the same element.
Statement $-II :$ The acidic character of trivalent oxide of group $15$ elements. $E _{2} O _{3}$. decreases down the group.
In light of the above statements. choose most appropriate answer from the options given below