Carbon is found in graphite in ………form.
a) tetrahedral
b) octahedral
c) hexagonal
d) cubic
The temperature at which one allotrope changes into another is called ……..
a) melting point
b) boiling point
c) freezing point
d) transition temperature
Tin exists in allotropic forms ………….
a) grey tin
b) white tin
c) red tin
d) a & b both
S8 is found in …………. shape at 95.5OC.
a) orthorhombic
b) monoclinic
c) cubic
d) a & b both
Transition temperature for tin is ………..
a) 95.5OC
b) 13.2OC
c) 128.5OC
d) 97.9OC
Potassium nitrate exists in…………...forms at transition temperature.
a) rhombohedral
b) orthorhombic
c) monoclinic
d) a & b both
