AIIMS MBBS Entrance Test 2019 Chemistry Paper with Answer & Solutions 25 May Second Shift Part 4

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Q-51: is a:

(1) Low spin complex

(2) Paramagnetic

(3) High spin

(4) Hybridized

Answer: (1)

Solution:

Hybridisation so all electron are paired therefore it is Low spin complex and diamagnetic

Q-52: Which of the following has highest ratio of redacting hydrogen:

(1) Orthophosphroric acid

(2) Hypophosphorus acid

(3) Phosphorus acid

(4) Pyrophosphoric acid

Answer: (2)

Solution:

Orthophosphroric acid ratio

Hypophosphorus acid ratio

Phosphorus acid ratio

Pyrophosphoric acid ratio

Q-53: 1 mole of a diatomic is heated through isochoric process from. The entropy is:

Options:

(1)

(2)

(3)

(4)

Answer: (1)

Q 54.Formula of metal oxide with metal deficiency defect in its crystal is. The crystal contains and ions. The fraction of metal existing as ions in the crystal is –

(1)

(2)

(3)

(4)

Answer: (3)

Q-55: Reaction temperature reaction on equilibrium. If equilibrium constant and Gibb’s free energy are Y and X respectively. The Gibb’s free energy for reaction is

(1)

(2)

(3)

(4)

Answer: (4)

Q-56: At temperature the activation energy is. The value of Arrhenius factor is . The rate constant will be

Options:

(1)

(2)

(3)

(4)

Answer: (2)

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