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JEE 2020 Chemistry : Equilibrium Quiz-1(21.06.2019)
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Question 1
The equilibrium constant for the reaction N2(g) + O2(g) 2NO(g) at temperature T is 4×10-4. The value of Kc for the reaction NO(g) +at the same temperature is
Question 2
What products are expected from the disproportionation reaction of hypochlorous acid?
Question 3
The molar solubility product of Fe2(SO4)3 is Ksp. ‘s’ is given in terms of Ksp by the relation
Question 4
The equilibrium constant (Kc) for the reaction N2(g) + O2(g) → 2NO(g) at temperature T is
4 x 10–4. The value of Kc for the reaction, NO(g) → 1/2N2(g) + 1/2O2(g) at the same temperature is :
4 x 10–4. The value of Kc for the reaction, NO(g) → 1/2N2(g) + 1/2O2(g) at the same temperature is :
Question 5
Which of the following on thermal decomposition yields a basic as well as an acidic oxide ?
Question 6
Consider the reaction equilibrium:
;
On the basis of Le-Chateliers’ principle, the condition favourable for the forward reaction is
;
On the basis of Le-Chateliers’ principle, the condition favourable for the forward reaction is
Question 7
The pKa of a weak acid (HA) is 4.5. The pOH of an aqueous buffered solution of HA in which 50% of the acid is ionized is
Question 8
50 mL of 0.2 M ammonia solution is treated with 25 mL of 0.2 M HCl. If pKb of ammonia solution is 4.75, the pH of the mixture will be:
Question 9
Phosphorus pentachloride dissociates as follows, in a closed reaction vessel,
PCl5(g) PCl3(g) + Cl2(g)
If total pressure at equilibrium of the reaction mixture is P and degree of dissociation of PCl5 is x, the partial pressure of PCl3 will be
PCl5(g) PCl3(g) + Cl2(g)
If total pressure at equilibrium of the reaction mixture is P and degree of dissociation of PCl5 is x, the partial pressure of PCl3 will be
Question 10
Solubility product of silver bromide is . The quantity of potassium bromide (molar mass taken as 120 g mol–1) to be added to 1 litre of 0.05 M solution of silver nitrate to start the precipitation of AgBr is
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Sep 18JEE & BITSAT