200 mL of M/50 HCl are mixed with 100 mL of M/100 HCl the pH of the resulting solution would be
A substance x dissolves in water with a decrease in volume and absorption of heat solubility of X will be favoured by
1.low pressure high temp.
2.low temp. high pressure
3.low temp. low pressure
4.high temperature high pressure
According to Le Chateliers principal adding heat to a solid and liquid in equilibrium will cause the
1.amount of solid to decrease
2.amount of liquid to decrease
3.temperature to rise
4.temperature to fall.
Equilibrium constant changes with
4.both temperature and concentration
1.all the three phases
In a reversible reaction two substances are in equilibrium. If the concentration of each one is doubled the equilibrium constant will be
1.Reduced to half its original value
2.Reduced to one fourth of its original value
1.remains unchanged with temperature
2.depends on the nature
3.decreases with temperature
4.increases with pressure
Melting of ice is favoured by
1.low pressure high temp.
2.low temp. low pressure
3.high pressure low temp.
4.high temp. high pressure
On mixing 1 mole of ethyl alcohol with 1 mole of acetic acid at 298 K the equilibrium concentration of ester and water becomes 2/3 moles each. If 3 moles of alcohol is mixed with 1 mole of acid the concentration of ester in moles at equilibrium will be
Ostwalds dilution law is applicable to
1.Strong electrolytes only
2.Week electrolytes only
4.Strong as well as weak electrolytes
1.the reaction is instantaneous
2.silver nitrate is insoluble in water
3.silver chloride is sparingly soluble in water
4.solubility of silver nitrate increases with sodium chloride
Sulphanilic acid is a/an
3.Neither (a) nor (b)
4.Both (a) and (b).
1.change in the concentration of products
2.increase in the concentration of reactants
3.addition of a catalyst
4.changing the temperature
The pH of 0.1 M acetic acid is
3.less than 1
4.more than 1.
To a solution equimolar mixture of sodium acetate solution is added. The pH of mixture solution
1.An acid is added to it
2.A base is added to it
3.Either a base or an acid is added to it
4.Temperature is raised.
1.Its value increases by increase in temperature
2.Its value decreases by decrease in temperature
3.Its value may increase or decrease with increase in temperature
4.Its value is constant at all temperature.
1.Its value does not depend upon the initial conc. of the reactants
2.Its value does not depend upon the initial conc. of the products
3.Its value does not depend upon nature of the reactants
4.Its value does not depend upon presence of catalyst.
1.Increase of pressure
2.Increase of volume
3.Addition of catalyst
4.Decrease of temperature.