NEET UG CHEMISTRY MCQ: ELECTRO CHEMISTRY

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Quantity of charge is measured in :

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Correct option: A

ampere-sec

Option A (ampere-sec) is correct because quantity of charge (Q) is defined as the product of current (I) and time (t), where current is measured in amperes and time in seconds.

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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?