MCQ
$96500 $ coulombs of electric current liberates from $CuS{O_4}$ solution .............. $\mathrm{gm\,\,Cu}$
  • A
    $63.5$
  • $31.75$
  • C
    $96500$
  • D
    $100$

Answer

Correct option: B.
$31.75$
b
(b)$C{u^{ + + }} + 2{e^ - } \to Cu$; ${E_{Cu}} = \frac{{63.55}}{2} = 31.75\,\,gm\,\,Cu$.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Transition metals show paramagnetism
The Henry's law constant for solubility of $N_2$ gas in water at $25\,^oC$ is $1 \times 10^5\ atm$ . The mole fraction of $N_2$ in air is $0.8$ . The number of moles of $N_2$ from air that will dissolve in $10\, moles$ of $H_2O$ at $25\,^oC$ and at $5\ atm$ pressure
When the concentration is expressed as the number of moles of a solute per litre of solution it known as
In the following reactions, products $A$ and $B$ are
Arrange in their increasing order of equilibrium constants for hydration ?

$\underset{(A)}{\mathop{\begin{matrix}
   O  \\
   ||  \\
   C{{H}_{3}}-C-C{{H}_{3}},  \\
\end{matrix}}}\,\,\,\,\,\underset{(B)}{\mathop{\begin{matrix}
   \,\,\,\,\,\,O  \\
   \,\,\,\,\,\,||  \\
   C{{H}_{3}}-C-H,  \\
\end{matrix}}}\,\,\,\,\,\underset{(C)}{\mathop{\begin{matrix}
   O\,\,\,\,\,\,\,\,\,\,\,\,\,\,  \\
   ||\,\,\,\,\,\,\,\,\,\,\, \,\, \\
   C{{H}_{3}}-C-C{{H}_{2}}-Cl,  \\
\end{matrix}}}\,$ $\,\,\underset{(D)}{\mathop{\begin{matrix}
   O  \\
   ||  \\
   H-C-H,  \\
\end{matrix}}}\,\,\,\,\underset{(E)}{\mathop{\begin{matrix}
   \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,O  \\
   \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,||  \\
   Cl-C{{H}_{2}}-C-H  \\
\end{matrix}}}\,$

The $\pi - $bonded organo metallic compound which has ethene as one of its component is
When fluoride is heated with conc. ${H_2}S{O_4}$ and $Mn{O_2}$ the gas evolved is
Product of the reaction is
In which of the following reactions hydrogen gas will not be evolved ?
product $(P)$ , $P$ is