Question

an element x which in a yellow solid at room temperature shows catenation and allotropy. x forms two oxides which are also formed during the thermal decomposition of ferrous sulphate crystals and are the major air pollutants 1.identify element x 2.rite the balanced equation 3. write electronic configuration

Answer 1

a) Element X is sulphur (atomic no. 16).
(b) 2Fe$SO_{4}$(s) $\xrightarrow{ Heat}$ $Fe_{2}O_{3}$(s) + S$O_{2}$(g) + S$O_{3}$(g)
c)K, L, M .
2, 8, 6