12.5. Name the methods for separation of the following:

(i) mixture of two organic compounds having different solubilities in the same solvent
(ii) naphthalene from kerosene oil

(iii) organic liquid that decomposes below its boiling point

The standard enthalpy of combustion at 25°C of hydrogen, cyclohexene (C₆H₁₀) and cyclohexane (C₆H₁₂) are –241, –3800 and –3920 kJ mol–1 respectively. Calculate the standard enthalpy of hydrogenation of cyclohexene.

Kindly Consider following table–

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The total number of spectral lines formed when an electron jumps from n₇ → n₁ energy level.

How many faradays are required to reduce 0.1 mole of MnO⁻₄ to Mn+² ?

In the given reaction -