AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
(i) Iodine is lustrous (shiny surface), whereas non-metals are generally non-lustrous.
(ii) Graphite conducts electricity, whereas non-metals are generally bad conductors of electricity.
Source: Metals and Non-metals, Section 3.1.2
The examiner expects one specific physical property for each exception — no elaboration needed. The key words are lustrous for iodine and conducts electricity for graphite. These are directly stated in the textbook as exceptions among non-metals. Avoid writing about chemical properties here; the question specifically asks for physical properties.