1
JEE Main 2020 (Online) 9th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The Ksp for the following dissociation is 1.6 × 10–5

$$PbC{l_{2(s)}} \leftrightharpoons Pb_{(aq)}^{2 + } + 2Cl_{(aq)}^ - $$

Which of the following choices is correct for a mixture of 300 mL 0.134 M Pb(NO3)2 and 100 mL 0.4 M NaCl ?
A
Q > Ksp
B
Not enough data provided
C
Q < Ksp
D
Q = Ksp
2
JEE Main 2020 (Online) 8th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
For the following Assertion and Reason, the correct option is :

Assertion : The pH of water increases with increase in temperature.

Reason : The dissociation of water into H+ and OH is an exothermic reaction.
A
Both assertion and reason are false.
B
Both assertion and reason are true, but the reason is not the correct explanation for the assertion.
C
Both assertion and reason are true, and the reason is the correct explanation for the assertion.
D
Assertion is not true, but reason is true.
3
JEE Main 2020 (Online) 8th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The stoichiometry and solubility product of a salt with the solubility curve given below is, respectively : JEE Main 2020 (Online) 8th January Morning Slot Chemistry - Ionic Equilibrium Question 63 English
A
XY, 2 × 10–6 M3
B
XY2, 1 × 10–9 M3
C
XY2, 4 × 10–9 M3
D
X2Y, 2 × 10–9 M3
4
JEE Main 2020 (Online) 8th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The strength of an aqueous NaOH solution is most accurately determined by titrating :
(Note : consider that an appropriate indicator is used)
A
Aq. NaOH in a pipette and aqueous oxalic acid in a burette
B
Aq. NaOH in a burette and aqueous oxalic acid in a conical flask
C
Aq. NaOH in a volumetric flask and concentrated H2SO4 in a conical flask
D
Aq. NaOH in a burette and concentrated H2SO4 in a conical flask
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