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ionic Equilibrium MCQ - Multiple Choice Question and Answer

ionic Equilibrium MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 1
Ionisation constant of formic acid is 1.8 x 1.8×10-4 at 298 K. In 0.1 NHCOOH the percentage ionisation of HCOOH acid is

0.18
42.4
4.24
2.89

Question No : 2
Solubility of calcium carbonate is 0.0305 gm/litre.Kspfor CaCO3 is

0.000305
193 x 10-8
9.3 x10-8
93.05 x1-5

Question No : 3
Kspfor AgCl (mol wt 143.5) is 17 x 10-11 at 298K. The molar solubility of AgCl at 298 Kis

18.7 x10-5
2.3 x 10-3
9.90 x 10-3
1.3 x 10-5

Question No : 4
Strength of an acid depends on

hydrolysis
concentration of OH- ions
concentration ofH+ ions
no. of moles of base used for neutralisation

Question No : 5
0.1 M acetic acid ionise to an extent of 1.34%. Ionisation constant of acetic acid is

0.00134
1.182
1.82 x 10-5
2.8 x 10-61CF6

Question No : 6
Dissociation constant of 0.01 M HCN is 4 x10-10. The H- concentration in the solution is

3×10-6 mole lit-1
2×10-6 mole lit-1
5×10-10 mole lit-1
5×10-8mole lit-1

Question No : 7
BaSO4(Mol. wt 233) has solubility 0.009 gmlit-1 at 298 K. Its solubility product is

 1.521 x 10-5
152.1 x 10-1910"19
1.9 x 10-5
15.21 x 10-9