NEET UG CHEMISTRY MCQ: ELECTRO CHEMISTRY

1 Easy

1 of 1

Application +4 | -1

Four colourless salt solutions are placed in separate test tubes and a strip of copper is placed in each. Which solution finally turns blue?

View answer and explanation

Correct option: C

\mathrm{AgN}{\mathrm{O}_3}

Option C (

\mathrm{AgN}{\mathrm{O}_3}

) is correct because copper is more reactive than silver and will displace silver ions from the solution, forming copper(II) ions which give the solution a blue color.

More Questions from ELECTRO CHEMISTRY

Practice All Chapter MCQs →

4.5 g of Al (at. mass 27 amu) is deposited at cathode from

A{l^{3 + }}

solution by a certain quantity of charge. The volume of

{H_2}

produced at STP from

{H^ + }

ions in solution by the same quantity of charge will be : The correct order of molar conductivity at infinite dilution of

\mathrm{LiCl},{\rm{NaCl {\kern 1pt}{\kern 1pt}and {\kern 1pt}{\kern 1pt}KCl}}

is A solution of copper sulphate

\left(\mathrm{CuSO}_4\right)

is electrolysed for 10 minutes with a current of 1.5 amperes. The mass of copper deposited at the cathode (at. mass of Cu = 63 u) is The desired amount of charge for obtaining one mole of Al from

\mathrm{A}{\mathrm{l}^{3 + }}

is When an aqueous solution of lithium chloride is electrolysed using graphite electrodes : Which are used as secondary reference electrodes?