The internal energy of fixed mass of an ideal gas depends on ………………..

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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