Reaction of dilute HCl with maltose gives:

Maltose is

$ A solution of BiCl_(3) in conc. HCl when diluted with water gives white ppt. ! BiCl_3 is insoluble in dil. HCl

A solution of a colourless salt in conc. HCl on dilution with water gives white ppt. it is due to

Assertion : Reaction of HCl with But -2- ene in the presence or absence of peroxide will give same products. Reason : Above reaction is regiioselective reaction.

Barium sulphate on fusion charcoal and sodium carbonate yields a compound (X).(X) on reaction with dilute HCl liberates a gas (Y) . The gas (Y) can be identified by :

Acetaldehyde on reaction with very dilute alkali gives