Question
Chemistry Question on p -Block Elements
Element of group 16 (except polonium) are called chalcogens because
A
these elements, particularly sulphur and oxygen, are present in many metallic ores, mainly as oxides and sulphides
B
a large number of acids contain these elements, particularly sulphur and oxygen
C
these elements mainly form anions
D
these elements exist in different allotropic forms
Answer
these elements, particularly sulphur and oxygen, are present in many metallic ores, mainly as oxides and sulphides
Explanation
Solution
Elements of group-16 (except Po) are called chalcogens i.e. ore forming elements since these elements are present in many metallic ores in the form of oxides and sulphides.