1
) The internal energy of fixed mass of an ideal
gas depends on ………………..
A ) Pressure , b
) Volume ,
C ) Temperature , d
) All of these ,
Correct
answer : - C ) Temperature ,
(
It depends on temperature , not on pressure and its volume ) .
2
) The boiling point of noble gas
increases ………….. And noble gases has very
low boiling point as compare to others .
A ) Down the group . b
) Going up the group ,
C ) Both , d
) None of these ,
Correct
answer : - A ) Down the group .
3
) Colligative properties depend on …………
A ) Solute , b
) Solvent ,
C ) Both , d
) None of these ,
Correct
answer : - A ) Solute ,
(
It depends Solute particles not in nature of solute ) .
4
) Relation between kw, ka, kb is …………….
Correct
answer : - ( kw = ka * kb ) .
5
) Buffer solution resist ………….. when small
amount of a strong acid or base is added.
A ) Change in PH , b ) Does not change in PH ,
C ) Both , d
) None of these ,
Correct
answer : - A ) Change in PH ,
6
) Water (H2O) has…………….. than HF.
Because HF forms 1 hydrogen bond and H2O forms 2 hydrogen bond. More hydrogen
bonds, higher B.P.
A ) Higher boiling point , b ) Higher
melting point ,
C ) Both , d
) None of these ,
Correct
answer : - A ) Higher boiling point ,
7
) Nelson cell is used to prepare…………
A ) Sodium Hydroxide ( NaOH ) . b ) Potassium chloride ,
C ) Both , d
) None of these ,
Correct
answer : - A ) Sodium Hydroxide ( NaOH ) .
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