MCQ
The passage of current liberates ${H_2}$ at cathode and $C{l_2}$ at anode. The solution is
- ACopper chloride in water
- ✓$NaCl$ in water
- C${H_2}S{O_4}$
- DWater
✓
Answer
Correct option: B.
$NaCl$ in water
b
(b) Since discharge potential of water is greater than that of sodium so water is reduced at cathode instead of $N{a^ + }$
(b) Since discharge potential of water is greater than that of sodium so water is reduced at cathode instead of $N{a^ + }$
Cathode: ${H_2}O + {e^ - } \to \frac{1}{2}{H_2} + O{H^ - }$
Anode: $C{l^ - } \to \frac{1}{2}C{l_2} + {e^ - }$.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Arrange reactivity of given alcohol in increasing order of elimination reaction
→$(I)$ $\begin{array}{*{20}{c}}
{C{H_2} - C{H_2} - C{H_2} - C{H_2}OH} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{N{O_2}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}$
$(II)$ $\begin{array}{*{20}{c}}
{C{H_3} - C{H_2} - CH - C{H_2}OH} \\
{|\,} \\
{N{O_2}}
\end{array}$
$(III)$ $\begin{array}{*{20}{c}}
{C{H_3} - CH - C{H_2} - C{H_2}OH} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{N{O_2}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}$
$(IV)$ $CH_3-CH_2-CH_2-CH_2OH$
Select answer from codes given below :
The correct order for the rate of decarboxylation of following compounds with sodalime will be
Which of the following is Zwitter ion.
Which one of the following species is stable in aqueous solution ?
Note: In the questions arrange the compounds in increasing order of rate of reaction towards nucleophilic substitution.
In the reduction of nitrobenzene, which of the following is the intermediate
The major product formed in the following reaction is
Calculate the half life of the first-order reaction
→$C_2H_4O(g) \longrightarrow CH_4(g) + CO(g)$ If the initial pressure of $C_2H_4O(g)$ is $80\, mm$ and total pressure at the end of $20\, minutes$ is $120\, mm$ ............ $\min$
Which of the following does not come under antimicrobial?
On mixing, heptane and octane form an ideal solution. At $373\, K,$ the vapour pressures of the two liquid components (heptane and octane) are $105\, kPa$ and $45\, kPa$ respectively. Vapour pressure of the solution obtained by mixing $25.0\, g$ of heptane and $35\, g$ of octane will be ........ $kPa$.
→(molar mass of heptane $= 100\, g\, mol^{-1}$ and of octane $= 114\, g\,mol^{-1}$)