Iron reacts with blue vitriol to give green vitriol and reddish-brown metal. Green vitriol and the respective metal is:
(a) Ferrous sulphate, Copper
(b) Copper sulphate, Silver
(c) Ferrous sulphate, Silver
(d) Copper sulphate, Copper

No table found. the question asks for covalent bond based on electronegativies

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.