CBSE
Multiple Choice QuestionsWhat will be the pH value of 0.05 M Ba(OH)2 solution?
12
13
1
12.96
In the reaction: H2 + I2 → HI
In a 2L flask 0.4 moles of each H2 and I2 are taken. At equilibrium 0.5 moles of HI are formed. What will be the value of equilibrium constant Kc?
20.2
25.4
0.284
11.1
Which of the following oxide does not form acidic aqueous solution?
N2O3
NO2
N2O5
NO
Which of the following can behave as an acid as well as base ?
HCl
H2SO4
H2O
NH3
According to Le-Chatelier principle, adding heat a solid and liquid in equilibrium will cause the
amount of solid to decrease
amount of liquid to decrease
temperature to rise
temperature to fall
N2 and H2 in 1 : 3 molar ratio are heated in a closed container having a catalyst. When the following equilibrium is attained, the total pressure is 10 atm and mole fraction of NH3 is 0.60. The equilibrium constant KP for dissociation of NH3 is
1.333 atm-2
0.75 atm-2
0.75 atm2
1.333 atm2
At 30C the solubility of Ag2CO3 (Ksp=8 x 10-12) would be greatest in one litre of
0.05 M Na2CO3
0.05 M AgNO3
pure water
0.05 N NH3
Solubility of AgCl at 20C is 1.435 x 10-3 g/L. The solubility product of AgCl is
1 x 10-5
1 x 10-10
1.435 x 10-5
108 x10-3
Ammonium ion is
a conjugate acid
a conjugate base
neither acid nor a base
both an acid and a base
Which of the following salt does not get hydrolysed in water?
KClO4
NH4Cl
CH3COONa
None of these
