Which of the following lattices has the highest packing efficiency (i) simple cubic (ii) body-centred cubic and (iii) hexagonal close-packed lattice?
Hexagonal close-packed lattice has the highest packing efficiency of 74%. The packing efficiencies of simple cubic and body-centred cubic lattices are 52.4% and 68% respectively.
2. The polymer used in making plastic crockery is
4. Which of the following is a monoatomic gas?
6. The transuranium elements are the chemical elements with atomic numbers greater than
8. Limestone is a raw material used by which industry?