The colour of light absorbed by an aqueous solution of CuSO₄ is

The number of optically active products obtained from the complete ozonolysis of the given compound is ______.

Which of the following hydrogen halides reacts with AgNO₃(aq.) to give a precipitate that dissolves in Na₂S₂O₃ (aq.) ?

Identify the binary mixtures that can be separated into individual compounds, by differential extraction, as shown in the given scheme.