(i) An aqueous solution of a compound A is acidic towards litmus and A sublimes at about 300^(@)C (ii)A solution of A, on treatment with an excess of NH_(4)SCN, gives a red compound, and on treatment with a solution of K_(4)[Fe(CN)_(6)], gives a blue compound. (iii) The solid A, on being heated with an excess of K_(2)Cr_(2)O_(7) in the presence of concentrated H_(2)SO_(4), evolves deep red vapours of D. (iv) On passing the vapours of D into a solution of NaOH and then adding the solution of acetic acid and lead acetate, a yellow precipitate of a compound E is obtained. Q. Can compound A be prepared in the anhydrous form by strongly heating its hydrated crystals?

(i) An aqueous solution of a compound A is acidic towards litmus and A

1.	(i) An aqueous solution of a compound A is acidic towards litmus and A sublimes at about 300^(@)C (ii)A solution of A, on treatment with an excess of NH_(4)SCN, gives a red compound, and on treatment with a solution of K_(4)[Fe(CN)_(6)], gives a blue compound. (iii) The solid A, on being heated with an excess of K_(2)Cr_(2)O_(7) in the presence of concentrated H_(2)SO_(4), evolves deep red vapours of D. (iv) On passing the vapours of D into a solution of NaOH and then adding the solution of acetic acid and lead acetate, a yellow precipitate of a compound E is obtained. Q. Can compound A be prepared in the anhydrous form by strongly heating its hydrated crystals?
Answer» No, because the WATER molecules are very stongly bound in the hydrated crystals No, because the SALT gets hydrolysed in the process Yes, because the water molecules are loosely bound in the hydrated crystals yes, because the salt SUBLIMES at `300^(@)C` ANSWER :B