NEET UG CHEMISTRY MCQ: ELECTRO CHEMISTRY

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The standard e.m.f. of a galvanic cell can be calculated from :

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Correct option: D

The

{E^ \circ }

values of the two half cells

Option D (The

{E^ \circ }

values of the two half cells) is correct because the standard EMF of a galvanic cell is calculated from the difference in standard reduction potentials of the two half-cells.

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

A{l^{3 + }}

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{H_2}

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{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)

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\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?