An element X which is 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 (a) Identify the element X (b) Write the electronic configuration of X (c) Write the balanced chemical equation for the thermal decomposition of ferrous sulphate crystals ? (d) What would be the nature (acidic/basic) of oxides formed ? (e) Locate the position of the element in the modern table.

An element X which is a yellow solid at room temperature shows catenat

1.	An element X which is 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 (a) Identify the element X (b) Write the electronic configuration of X (c) Write the balanced chemical equation for the thermal decomposition of ferrous sulphate crystals ? (d) What would be the nature (acidic/basic) of oxides formed ? (e) Locate the position of the element in the modern table.
Answer» (a) The available information suggests that the element X is sulphur. (b) Electronic configuration of S(Z = 16) 2, 8, 6 (c) `2FeSO_(4).7H_(2)O(s)overset("heat")rarrFe_(2)O_(3)(s)+SO_(2)(g)+SO_(3)(g)+7H_(2)O(g)` (d) `Fe_(2)O_(3)" (basic oxide)", SO_(2)" (acidic oxide)", SO_(3)" (acidic oxide)"` (e) Sulphur is a member of group 16 and period 3.

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