question_answer1)
Define
(i) solute and (ii) solvent.
question_answer2)
Is
smoke a homogeneous solution?
question_answer3)
Oil
and water don't mix. Why?
question_answer4)
How
is that alcohol and water are miscible in all proportions?
question_answer5)
is soluble in water but not in
benzene. Why?
question_answer6)
Benzene
is soluble in toluene but not in water. Why?
question_answer7)
Which
concentration term remains unaffected by temperature?
question_answer8)
Why
does the molality of solution remain unchanged with temperature?
question_answer9)
Why
is molality preferred over molarity of solution?
question_answer10)
How
does molarity of solution change with temperature?
question_answer11)
Explain
the term "mole fraction".
question_answer12)
Why
are soda water and soft drink bottles sealed under pressure?
question_answer13)
State
Henry's law about the solubility of gases in a liquid.
question_answer15)
State
Raoult's law of vapour pressure.
question_answer16)
Name
two factors on which the vapour pressure of the liquid depends.
question_answer17)
Define
Raoult's law of solutions containing volatile components.
question_answer18)
Define
an ideal solution.
question_answer19)
What
is enthalpy change and volume change when an ideal solution is formed?
question_answer20)
State
any two characteristics of ideal solutions.
question_answer21)
Give
an example of ideal solution.
question_answer24)
Give
an example of solution showing negative deviation from ideal behaviour.
question_answer25)
Give
an example of solution showing positive deviation from ideal behaviour.
question_answer26)
What
type of solution is formed when chloroform is mixed with acetone?
question_answer27)
What
type of solution is formed when ethahol is mixed with water?
question_answer28)
Give
an example of solution which shows negative deviation from ideality.
question_answer29)
Give
an example of solution which shows positive deviation from ideality.
question_answer30)
Define
azeotropic mixture.
question_answer31)
What
are maximum boiling azeotropes? Give an example,
question_answer32)
What
are minimum boiling azeotropes? Give an example.
question_answer33)
What
type of behaviour is expected when water is added to sulphuric acid?
question_answer34)
What
is an antifreeze?
question_answer35)
Define
"colligative properties".
question_answer36)
Why
does the boiling point of a solution increase on adding non-volatile
solute?
question_answer37)
Why
does the freezing of a solution decrease on adding non-volatile
solute?
question_answer38)
On
what factor does the elevation in boiling point depend?;
question_answer39)
On
what factors does depression in freezing point depend?'.
question_answer40)
How
does the boiling point of a liquid change with external pressure?
question_answer41)
What
change is observed in boiling point of a liquid at higher altitude?
question_answer42)
Define
cryoscopic constant.
question_answer43)
Define
ebullioscopic constant.
question_answer44)
What
is osmosis?
question_answer45)
Define
osmotic pressure.
question_answer46)
State
how does osmotic pressure vary with temperature?
question_answer47)
How
does osmotic pressure depend upon number of moles of solute particles?
question_answer48)
Doctors
advise gargles by saline water in case of sore throat Why?
question_answer49)
What
is reverse osmosis?
question_answer50)
What
is the-use of reverse osmosis?
question_answer51)
What
are isotonic solution?
question_answer52)
Define
(i) Hypertonic solution and (ii) Hypotonic.
question_answer53)
What
is van't Hoff's factor?
question_answer54)
When
is the value of van't Hoff factor more than one?
question_answer55)
When
is the value of van't Hoff factor less than one?
question_answer58)
Osmotic
pressure of 1 M KCl solution is higher than 1 M urea solution. Why?
question_answer59)
Why
a mixture of liquids shows negative deviation from ideal behaviour?
question_answer60)
Why
a mixture of liquids shows positive deviation from ideal behaviour?
question_answer61)
Differentiate
between molarity and molality of solution.
question_answer71)
Define
osmosis and osmotic pressure.
question_answer81)
What
happens when RBC are placed in
(i) 1% NaCI solution.
(ii) Pure water.
question_answer83)
Name
the solid that is separated when salt solution is slowly frozen.
question_answer84)
Why
do aquatic species feel more comfortable in winter than in summer?
question_answer85)
What
precaution should be taken in intravenous injection?
question_answer89)
Give
one example of interstitial and substitutional solid solutions.
question_answer90)
How
is Henry's Law constant related to the solubility of a gas in a solvent?
question_answer92)
What
does normality (N) represent?
question_answer93)
Why
does not molality of the solution change with temperature?
question_answer94)
What
are the units of mole fraction?
question_answer96)
Rubbing
isopropyl alcohol often gives a cooling sensation to the skin. Why?
question_answer99)
Does
osmosis occur from hypertonic solution to hypotonic solution?
question_answer100)
What
type of azeotrope will result on mixing chloroform and acetone?
question_answer101)
Name
the most commonly used semi permeable membrane in the
laboratory.
question_answer102)
The
Van't Hoff factor of a solution is 1. What does it indicate?
question_answer103)
What
is the purpose of adding ethylene glycol to water?
question_answer105)
What
is the effect of temperature on the molarity of a solution?
question_answer106)
Can
a solution of its own have osmotic pressure?
question_answer112)
What
is common in all the four colligative properties?
question_answer115)
How
does osmotic pressure depend upon temperature?
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