For the following questions answer them individually

Question 51

The standard equilibrium constant, Kp at 298 K for the reaction, $$N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3 (g) is 5.8 \times 10^5$$. The value of standard equilibrium constant, if the concentration of gases is expressed in terms of mol/L, will be :
[Given : R = 0.08314 L bar $$K^{-1} mol^{-1}$$]

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Question 52

Which one of the folowing ions is not tetrahedral in shape ?

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Question 53

The letter ‘D’ in D-glucose signifies :

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Question 54

Consider the following reaction for which the change in enthalpy is positive
$$2A(g) + B(g) \leftharpoondown C(g) + D(g)$$
Which of the following will not affect the equilibrium ?

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Question 55

Consider the reaction between chlorine and nitric oxide
$$Cl_2(g) + 2NO(g) \rightarrow 2NOCl(g)$$
On doubling the concentration of both reactants, the rate of the reaction increases by a factor of 8. However, if only the concentration of $$Cl_2$$ is doubled, the rate increases by a factor of 2. The order of this reaction with respect to NO is :

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Question 56

Which of the following will react faster through $$S_N 1$$ mechanism ?

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Question 57

The correct statement regarding ethane conformation is :

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Question 58

Which of the following lanthanoids shows +4 oxidation state to acquire noble gas configuration ?
(At nos. : La = 57, Ce = 58, Eu = 63 and Yb = 70)

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Question 59

The tendency to form monovalent compounds among the Group 13 elements is correctly exhibited in :

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Question 60

W hich of the f ollowing complex ions is not diamagnetic ?

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