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 : -
 double , B ) decrease by two times , C ) remain same , D ) None of these ,){kind=link}
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