(i) Nitrogen
(ii) Bismuth
(iii) Antimony
(iv) Arsenic
Correct Answer: (i) Nitrogen
Explanation: The element that do not show allotropy is Nitrogen.
(i) Nitrogen
(ii) Bismuth
(iii) Antimony
(iv) Arsenic
Correct Answer: (i) Nitrogen
Explanation: The element that do not show allotropy is Nitrogen.