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Redox Reactions And Electrochemistry Mock Tests

30 questions available

Redox Reactions And Electrochemistry Mock Test 1

Questions: 30

Sample Questions

JEE Main Chemistry
The number of moles of electrons in 96500 C is:
A 1
B 2
C 0.5
D 96500
JEE Main Chemistry
The emf of the cell reaction: 2Fe³⁺(aq) + 2I⁻(aq) → 2Fe²⁺(aq) + I₂(s) at 298 K is: (E°Fe³⁺/Fe²⁺ = +0.77 V, E°I₂/I⁻ = +0.54 V)
A +0.23 V
B −0.23 V
C +1.31 V
D −1.31 V
JEE Main Chemistry
The IUPAC name of CH₃-CH(OH)-CH₂-CHO is:
A 2-Hydroxypropanal
B 3-Hydroxybutanal
C 2-Hydroxybutanone
D 1-Hydroxybutan-2-one
JEE Main Chemistry
The number of moles of electrons transferred when 1 mole of Al₂O₃ is formed from Al and O₂ is:
A 2
B 3
C 4
D 6
JEE Main Chemistry
For the galvanic cell reaction: Zn(s) + Cu²⁺(aq) → Zn²⁺(aq) + Cu(s), at 298 K, the correct Nernst equation expression is: (E°_cell = 1.10 V, n = 2)
A E_cell = 1.10 - 0.0591 log([Zn²⁺]/[Cu²⁺])
B E_cell = 1.10 - 0.0591 log([Cu²⁺]/[Zn²⁺])
C E_cell = 1.10 + 0.0591 log([Zn²⁺]/[Cu²⁺])
D E_cell = 1.10 - (0.0591/2) log([Zn²⁺]/[Cu²⁺])
JEE Main Chemistry
The molar conductivity of a 0.01 M solution of acetic acid is 32.4 S·cm²/mol. The molar conductivity at infinite dilution is 390.7 S·cm²/mol. The degree of dissociation of acetic acid is:
A 0.418
B 0.083
C 0.163
D 0.042
JEE Main Chemistry
The standard cell potential (E°cell) of a fuel cell using hydrogen and oxygen is 1.23 V. The Gibbs free energy change (ΔG°) for the reaction H₂(g) + ½O₂(g) → H₂O(l) at 298 K is:
A -237.4 kJ/mol
B -474.8 kJ/mol
C -118.7 kJ/mol
D -59.35 kJ/mol
JEE Main Chemistry
The emf of the cell: Zn(s) | Zn²⁺(0.1 M) || Cu²⁺(0.01 M) | Cu(s) at 298 K is: (E°cell = 1.10 V)
A 1.16 V
B 1.07 V
C 1.10 V
D 1.22 V

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