E-PolyLearning

21. Isomorph of sodium fluoride is
a. chlorine
b. magnesium oxide
c. sodium
d. Sulphur
View Answer Report Discuss 50-50!
Answer: (b).magnesium oxide

22. Lattice points have another name which is called
a. lattice sites
b. lattice arrangements
c. lattice circles
d. lattice array
View Answer Report Discuss 50-50!
Answer: (a).lattice sites

23. In amorphous solids atoms have no regular
a. molecules
b. volume
c. density
d. arrangement
View Answer Report Discuss 50-50!
Answer: (d).arrangement

24. Usual shape in which potassium chromate grows is
a. cubic
b. rhombohedra
c. triclinic
d. trigonal
View Answer Report Discuss 50-50!
Answer: (c).triclinic

25. Independent molecules of sodium chloride can exist in
a. solids
b. liquids
c. ionic solid
d. vapor phase
View Answer Report Discuss 50-50!
Answer: (d).vapor phase

Page 5 of 106