NEET UG CHEMISTRY MCQ: ELECTRO CHEMISTRY

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Analyzing +4 | -1

Assertion: Conductivity of metals decreases with increase of temperature whereas that of electrolytic solution increases.

Reason:Electrons in metals are very tightly held by the nucleus and are not free to move.

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Correct option: C

If Assertion is correct but Reason is incorrect.

Option C is correct because the assertion is true (metals' conductivity decreases with temperature, while electrolytic solutions' increases), but the reason is false (electrons in metals are free to move, not tightly held).

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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?