Q. The

%

yield of ammonia as a function of time in the reaction :

N_{2} (g) + 3 H_{2} (g) ⇌ 2 N H_{3} (g), Δ H < 0

(P, T_{1})

is given below.
If this reaction is conducted at

(P, T_{2})

, with

T_{2} > T_{1}

, the %yield of ammonia as a function of time is represented by:

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Q. The total number of lone pair of electrons in

N_{2} O_{3}

is:

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Q. The total number of stereoisomers that can exist for

M

is:

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Q. Not considering the electronic spin, the degeneracy of the second excited state

(n = 3)

of H atom is 9, while the degeneracy of the first excited state of

H^{-}

is:

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Q. If the freezing point of a 0.01 molal aqueous solution of a cobalt(III) chloride-ammonia complex (which behaves as a strong electrolyte) is

- {0.0558}^{\circ} C,

the number of chloride(s) in the coordination sphere of the complex is:

[K_{f}

of water = 1.86

K k g m o l^{- 1}

]

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Q. All the energy released from the reaction

X \to Y, Δ_{r} G^{\circ} = - 193 k J . m o l^{- 1}

is used for oxidizing

M^{+}

M^{+} \to M^{3 +} + 2 e^{-}, E^{\circ} = - 0.25 V .

Under standard conditions, the number of moles of

M^{+}

oxidized when one mole of X is converted to Y is:

[F = 96500 C m o l^{- 1}]

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F e^{3 +}

is reduced to

F e^{2 +}

by using :

$H_{2} O_{2}$ in presence of $N a O H$
$N a_{2} O_{2}$ in water
$H_{2} O_{2}$ in presence of $H_{2} S O_{4}$
$N a_{2} O_{2}$ in presence of $H_{2} S O_{4}$

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Q. For the octahedral complexes of

F e^{3 +}

S C N^{-}

(thiocyanato-

S

) and in

C N^{-}

ligand environments, the difference between the spin-only magnetic moments in Bohr magnetons (when approximated to the nearest integer) is:
[Atomic number of Fe = 26]

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Q. Match the anionic species given in Column I that are present in the ore(s) given in Column II.

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Q. Among the triatomic molecules/ions,

B e C l_{2}, {N_{3}}^{-}, N_{2} O, N O_{2}^{+}, O_{3}, S C l_{2}, {I C l_{2}}^{-}, {I_{3}}^{-}

and

X e F_{2},

the total number of linear molecule(s)/ion(s) where the hybridization of the central atom does not have contribution from the d-orbital(s) is

[Atomic number :

S = 16, C l = 17, I = 53

and

X e = 54]

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