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Chemistry-

General

Easy

Question

Molten CuCl₂ is electrolysed using platinum electrode The reaction occuring at anode is

$2 {Cl}^{-} \to {Cl}_{2 (g)} + 2 e^{-}$
${Cl}_{2 (g)} + 2 e^{-} \to 2 {Cl}^{-}$
${Cu}^{2 +} + 2 e^{-} \to Cu (s)$
$Cu (s) \to {Cu}^{2 +} + 2 e^{-}$

The correct answer is: $2 Cl to the power of minus not stretchy rightwards arrow Cl subscript 2 left parenthesis straight g right parenthesis end subscript plus 2 straight e to the power of minus$

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Which process occurs in the electrolysis of aqueous solution of nickel chloride at nickel anode?

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For a reaction R₁ , $increment$ G = x KJ mol^-1 For a reaction R₂ , $increment$ G = y KJ mol^-1 Reaction R₁ is non - spontaneous but along with R₂ it is spontaneous This means that

For a reaction R₁ , $increment$ G = x KJ mol^-1 For a reaction R₂ , $increment$ G = y KJ mol^-1 Reaction R₁ is non - spontaneous but along with R₂ it is spontaneous This means that

chemistry-General

For a spontaneous reaction, the $increment$ G, equilibrium constant, K and E°_cell will be respectively

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For the precipitation reaction of Ag⁺ ions with NaCl which of the following statements is correct ?

For the precipitation reaction of Ag⁺ ions with NaCl which of the following statements is correct ?

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Although the dissolution of ammonium chloride in water is an endothermic reaction, even then it is spontaneous because:

Although the dissolution of ammonium chloride in water is an endothermic reaction, even then it is spontaneous because:

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At 27°C the reaction, $C subscript 6 end subscript H subscript 6 left parenthesis l right parenthesis end subscript plus fraction numerator 15 over denominator 2 end fraction O subscript 2 left parenthesis g right parenthesis end subscript rightwards arrow 6 C O subscript 2 left parenthesis g right parenthesis end subscript plus 3 H subscript 2 end subscript O subscript left parenthesis 1 right parenthesis end subscript$ proceeds spontaneously because the magnitude of

At 27°C the reaction, $C subscript 6 end subscript H subscript 6 left parenthesis l right parenthesis end subscript plus fraction numerator 15 over denominator 2 end fraction O subscript 2 left parenthesis g right parenthesis end subscript rightwards arrow 6 C O subscript 2 left parenthesis g right parenthesis end subscript plus 3 H subscript 2 end subscript O subscript left parenthesis 1 right parenthesis end subscript$ proceeds spontaneously because the magnitude of

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A reaction has both $increment$ H and $increment$ S negative The rate of reaction

A reaction has both $increment$ H and $increment$ S negative The rate of reaction

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The favourable conditions for a spontaneous reaction are

The favourable conditions for a spontaneous reaction are

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parallel

For which of the process, $increment$ S is negative ?

For which of the process, $increment$ S is negative ?

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For the process Dry ice →CO₂(g)

For the process Dry ice →CO₂(g)

chemistry-General

An equilibrium reaction $X plus Y rightwards arrow blank W plus Z$ $increment$ H =+ve is spontaneous in the forward direction Then corresponding sign of $increment$ G and $increment$ S should be respectively

An equilibrium reaction $X plus Y rightwards arrow blank W plus Z$ $increment$ H =+ve is spontaneous in the forward direction Then corresponding sign of $increment$ G and $increment$ S should be respectively

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Based on the third law of thermodynamics; the entropy can be obtained using the equation

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What is necessary condition for spontaneity of a process?

What is necessary condition for spontaneity of a process?

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$H subscript left parenthesis a q right parenthesis end subscript superscript plus end superscript plus O H subscript left parenthesis a q right parenthesis end subscript superscript minus end superscript rightwards arrow H subscript 2 end subscript O subscript left parenthesis 1 right parenthesis end subscript semicolon capital delta H equals negative v e$ and $increment$ G= -ve then the reaction is

$H subscript left parenthesis a q right parenthesis end subscript superscript plus end superscript plus O H subscript left parenthesis a q right parenthesis end subscript superscript minus end superscript rightwards arrow H subscript 2 end subscript O subscript left parenthesis 1 right parenthesis end subscript semicolon capital delta H equals negative v e$ and $increment$ G= -ve then the reaction is

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