p-Block Elements-I 2 Question 24
24. The value of $n$ in the molecular formula $\mathrm{Be}{n} \mathrm{Al}{2} \mathrm{Si}{6} \mathrm{O}{18}$ is
(2010)
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Solution:
- Graphite is better lubricant on moon than on earth because of absence of gravitational pull on the moon.
