Thermodynamically the most stable form of carbon is
Graphite is thermodynamically more stable than diamond and its free energy of formation is 1.9 kJ mol–1 lower at room temperature and ordinary pressure.
The compound ‘C’ in the following sequence of reaction is
The number of OH groups directly linked to boron atoms in Na2B4O7.10 H2O is
From B2H6 all the following can be prepared except
Which of the following allotropic forms of carbon is isomorphous with crystalline silicon?
A metal, M forms chlorides in +2 and +4 oxidation states. Which of the following statements about these chlorides is correct?
In which of the following silicates, cyclic structure is present?