A reversible chemical reaction is having two reactants in equilibrium if the concentration of reactants are double , then equilibrium constant kc will be : - A ) double , B ) decrease by two times , C ) remain same , D ) None of these ,

1 ) A reversible chemical reaction is having two reactants in equilibrium if the concentration of reactants are double , then equilibrium constant kc  will be : -

A ) double ,                                                         B ) decrease by two times ,

C ) remain same ,                                               D ) None of these ,

Correct Answer : -   C ) remain same ,

Explanation : -

At a fixed temperature , the Kc remains the same .  And Kc does not  depend on concentration of reactants and products .

 

2 )  . . . . . . . . . . . process help us to calculate lattice energy of ionic crystal .

A ) Born Haber ,                                                 B ) Crystallization ,

C ) Both A and B ,                                              D ) None of these ,

Correct Answer : -   A ) Born Haber ,

And Lattice energy is used to explain the stability of ionic Solids .

 

3 ) The gas leaked from storage tank of union carbide plant in Bhopal gas tragedy was . . . . . . . . . . . . . . ( methyl  isocyonate MIC ) .

 

4 ) Covalent crystals are formed by sharing of electrons .  The covalent bond extend in two or three dimensions .

Some molecules : -

Silicon Si : - covalent solid .

Sulphur S8 : - molecular solid .

Phosphorus P4 : - molecular solid .

Iodine I2 : - molecular solid .

 

5 ) For most of chemical reactions , the rate of reaction . . . . . . . . . . . as the reaction proceeds .

A ) increases ,                                                    B ) decrease ,

C ) remains same ,                                             D ) None of these ,

Correct Answer : -   B ) decrease ,

 

6 ) Amino acids are organic compounds that contains amine ( - NH2 ) and carboxyl ( - COOH ) function group .

 

7 ) pH of unpolluted water should be 5.60 .

Now go to online quiz section and Chemistry Quiz 5 is uploaded related to these mcqs  , so check your preparation by this link : -

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