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Chemical Equilibrium Set 1
Results
#1.
Which one of following solution have zero PH
1M HCl
1M HCl
0.5 MH2SO4
0.5 MH2SO4
0.1 M HNO3
0.1 M HNO3
1M CH3COOH
1M CH3COOH
#2.
The solubility product expression for BaF2 can be written as
[Ba2+] [F–] (b) (c) (d)
[Ba2+] [F–] (b) (c) (d)
[Ba2+] [2F]
[Ba2+] [2F]
[Ba2+] [F–]2
[Ba2+] [F–]2
[Ba+] [F–]2
[Ba+] [F–]2
#3.
To prepare a buffer with PH close to 9.0, you could use a mixture of
NH4OH and NH4Cl
NH4OH and NH4Cl
CH3COOH and CH3COONa
CH3COOH and CH3COONa
HNO2 + NaNO2
HNO2 + NaNO2
NaHCO3 + H2CO3
NaHCO3 + H2CO3
#4.
For which reaction the numerical value of Kc and Kp are same
N2 + 3H2 2NH3
N2 + 3H2 2NH3
2SO2 + O2 2SO3
2SO2 + O2 2SO3
H2 + Cl2 2HCl
H2 + Cl2 2HCl
N2O4 2NO2
N2O4 2NO2
#5.
For which system does the equilibrium constant Kc have units (mole dm–3)–1
H2 + I2 2HI
H2 + I2 2HI
N2 + 3H2 2NH3
N2 + 3H2 2NH3
2NO2 N2O4
2NO2 N2O4
CH3COOH + C2H5OH CH3COOC2H5 + H2O
CH3COOH + C2H5OH CH3COOC2H5 + H2O
#6.
What can affect the magnitude of equilibrium constant Kp of a reversible gaseous reaction
temperature
temperature
pressure
pressure
catalyst
catalyst
none of above
none of above
#7.
Which gas can change the PH towards acidic
argon
argon
carbon dioxide
carbon dioxide
nitrogen
nitrogen
oxygen
oxygen
#8.
The solution having zero PH will be
basic
basic
high basic
high basic
neutral
neutral
highly acidic
highly acidic
#9.
A solution have H+ ions concentration 1 x 10–7 its PH will be
acid
acid
basic
basic
neutral
neutral
zero
zero
#10.
Which one of the following has highest PH
0.1 M HCl
0.1 M HCl
1.0 M HCl
1.0 M HCl
gastric juice
gastric juice
lemons
lemons
Finish
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