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The energy units in which heat changes usually expressed in SI-system are:
NET
NUST Entry Test
Chemistry
Thermochemistry
In a chemical change, the energy in the form of heat will either be evolved or absorbed and this is called:
NET
NUST Entry Test
Chemistry
Thermochemistry
It is noticed that energy in the form of heat is either evolved or absorbed as a result of a:
NET
NUST Entry Test
Chemistry
Thermochemistry
The majority of reactions which give stable products are:
NET
NUST Entry Test
Chemistry
Thermochemistry
In endothermic reactions, the heat contents of the:
NET
NUST Entry Test
Chemistry
Thermochemistry
If an endothermic reaction is allowed to take place very rapidly in air, the temperature of the surrounding air:
NET
NUST Entry Test
Chemistry
Thermochemistry
The study of heat changes accompanying a chemical reaction is known as:
NET
NUST Entry Test
Chemistry
Thermochemistry
What is the molality of 92g toluene in 250g benzene?
NET
NUST Entry Test
Chemistry
Solutions
In depression of freezing point, freezing constant is divided by
NET
NUST Entry Test
Chemistry
Solutions
Percentage of weight of NaCl if 2g NaCl is dissolved in 18g water
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NUST Entry Test
Chemistry
Solutions
Which one is the correct formula for molar mass of solute in the case of boiling point elevation?
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NUST Entry Test
Chemistry
Solutions
For colligative properties the solution should be
NET
NUST Entry Test
Chemistry
Solutions
Colligative Properties depend upon
NET
NUST Entry Test
Chemistry
Solutions
The reaction in which a molecule is broken down by water is known as
NET
NUST Entry Test
Chemistry
Solutions
Definition of Raoult's law is
NET
NUST Entry Test
Chemistry
Solutions
Lowering of vapor pressure is directly proportional to?
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NUST Entry Test
Chemistry
Solutions
The number of moles of solute dissolved per $\rm{dm^{3}}$ of the solution is called
NET
NUST Entry Test
Chemistry
Solutions
An ideal solvent dissolves maximum solute at?
NET
NUST Entry Test
Chemistry
Solutions
Which of the following has maximum freezing point:
NET
NUST Entry Test
Chemistry
Solutions
When common salt is dissolved in water:
NET
NUST Entry Test
Chemistry
Solutions
The vapour pressure of an aqueous solution of glucose is:
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NUST Entry Test
Chemistry
Solutions
10% aqueous solution of glucose freezes at:
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NUST Entry Test
Chemistry
Solutions
Solubility of $Ce_{2}(SO_{4}){3}$ decreases with:
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NUST Entry Test
Chemistry
Solutions
The type of solubility curve which don't show sharp breaks anywhere is called:
NET
NUST Entry Test
Chemistry
Solutions
A curve drawn between solubility and temperature is called:
NET
NUST Entry Test
Chemistry
Solutions
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