7.- cresol,chloroform and caustic potash are heated the compounds formed are :

On heating baking soda the compounds formed are

On heating an aliphatic primary amine with chloroform and enthanolic potassium hydrozide, the organic compound formed is

When white phosphorus is heated with caustic soda, the compounds formed are

An organic compound 'A' on reduction give compound 'B' which on reaction with trichloromethane and caustic potash foms 'C'. The compound 'C' on catalytic reduction give N-methyl benzenamine, the compound 'A' is:

When phenol reacts with chloroform and an alkali, the compound formed is salicylaldehyde. If pyrene is used in place of chloroform, the product obtained is :