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Recent questions tagged Eqilibrium
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On the basis of the equation pH = -log [H+], the pH of 10-8 mol dm-3 solution of HCl should be 8. However, it is observed to be less than 7.0. Explain the reason.
asked
Mar 7, 2018
in
Class XI Chemistry
by
nikita74
(
-1,017
points)
eqilibrium
0
votes
1
answer
Arrange the following in increasing order of pH.
asked
Mar 7, 2018
in
Class XI Chemistry
by
vijay
Premium
(
539
points)
eqilibrium
0
votes
1
answer
Conjugate acid of a weak base is always stronger. What will be the decreasing order of basic strength of the following conjugate bases ?
asked
Mar 7, 2018
in
Class XI Chemistry
by
nikita74
(
-1,017
points)
eqilibrium
0
votes
1
answer
Arrange the bases in decreasing order of the extent of their ionization at equilibrium.
asked
Mar 7, 2018
in
Class XI Chemistry
by
rahul152
(
-2,838
points)
eqilibrium
0
votes
1
answer
BF3 does not have proton but still acts as an acid and reacts with NH3. Why is it so?
asked
Mar 7, 2018
in
Class XI Chemistry
by
rahul152
(
-2,838
points)
eqilibrium
0
votes
1
answer
The aqueous solution of sugar does not conduct electricity. However, when sodium chloride is added to water,
asked
Mar 7, 2018
in
Class XI Chemistry
by
rahul152
(
-2,838
points)
eqilibrium
0
votes
1
answer
The ionization of hydrochloric acid in water is given below: HCl(aq) + H2O(l) ⇌H3O+ (aq) +Cl–(aq)
asked
Mar 7, 2018
in
Class XI Chemistry
by
rahul152
(
-2,838
points)
eqilibrium
0
votes
1
answer
At a particular temperature and atmospheric pressure, the solid and liquid phases of a pure substance can exist in equilibrium.
asked
Mar 7, 2018
in
Class XI Chemistry
by
rahul152
(
-2,838
points)
eqilibrium
0
votes
1
answer
For the reaction N2O4(g) ⇌2NO2(g), the value of K is 50 at 400 K and 1700 at 500 K. Which of the following options is correct ?
asked
Mar 7, 2018
in
Class XI Chemistry
by
vijay
Premium
(
539
points)
eqilibrium
0
votes
1
answer
In which of the following reactions, the equilibrium remains unaffected on addition of small amount of argon at constant volume?
asked
Mar 7, 2018
in
Class XI Chemistry
by
vijay
Premium
(
539
points)
eqilibrium
0
votes
1
answer
What will be the correct order of vapour pressure of water, acetone and ether at 30°C ?
asked
Mar 7, 2018
in
Class XI Chemistry
by
vijay
Premium
(
539
points)
eqilibrium
0
votes
1
answer
Which of the following options will be correct for the stage of half completion of the reaction A ⇌B.
asked
Mar 7, 2018
in
Class XI Chemistry
by
vijay
Premium
(
539
points)
eqilibrium
0
votes
1
answer
Ka for CH3COOH is 1.8 x 10-5 and Kb for NH4OH is 1.8 x 10-5. The pH of ammonium acetate will be
asked
Mar 7, 2018
in
Class XI Chemistry
by
vijay
Premium
(
539
points)
eqilibrium
0
votes
1
answer
What will be the value of pH of 0.01 mol dm-3 CH3COOH (K.A -74 x 10-5) ?
asked
Mar 7, 2018
in
Class XI Chemistry
by
vijay
Premium
(
539
points)
eqilibrium
0
votes
1
answer
In which of the following solvents is silver chloride most soluble?
asked
Mar 7, 2018
in
Class XI Chemistry
by
vijay
Premium
(
539
points)
eqilibrium
0
votes
1
answer
Which of the following will produce a buffer solution when mixed in equal volumes ?
asked
Mar 7, 2018
in
Class XI Chemistry
by
vijay
Premium
(
539
points)
eqilibrium
0
votes
1
answer
Acidity of BF3 can be explained on the basis of which of the following concepts ?
asked
Mar 7, 2018
in
Class XI Chemistry
by
nikita74
(
-1,017
points)
eqilibrium
0
votes
1
answer
The ionization constant of an acid, Ka is the measure of strength of an acid. The Ka values of acetic acid,
asked
Mar 7, 2018
in
Class XI Chemistry
by
nikita74
(
-1,017
points)
eqilibrium
0
votes
1
answer
The pH of neutral water at 25°C is 7.0. As the temperature increases, ionization of water increases, however,
asked
Mar 7, 2018
in
Class XI Chemistry
by
nikita74
(
-1,017
points)
eqilibrium
0
votes
1
answer
When hydrochloric acid is added to cobalt nitrate solution at room temperature, the following reaction takes place and the reaction mixture becomes blue.
asked
Mar 7, 2018
in
Class XI Chemistry
by
nikita74
(
-1,017
points)
eqilibrium
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