Question

What is the action of concentrated sulphuric acid on the following
(a) phosphorous pentachoride
(b) copper
(c) potassim chlorate

Answer 1

(a) `H_(2)SO_(4)+2PCI_(5) to SO_(2)CI_(2)+2POCI_(3)+2HCI`
(b) `Cu+2H_(2)SO_(4) to CuSO_(4) +SO_(2)+2H_(2)`
(c) `2KCIO_(3)+3H_(2)SO_(4) to 3KHSO_(4)+HCIO+2CIO_(2)+H_(2)O`