Centane number of diesek fuel will increase with the addition of

If electrical conductivity of an emulsion increases with the addition of NaCl, identify the type of emulsion that is formed.

Assertion: To a system at equilibrium addition of inert gas at constant pressure and temperature drive the reaction to the side where larger number of active species is present. Reason: Addition of inert gas at constant temperature and pressure increases the equilibrium volume.

Octane no of a fuel can be increased by: