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Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non- malleable and are coloured. (a) Name a lustrous non-metal. (b) Name a non-metal which exists as a liquid at room temperature. (c) The allotropic form of a non-metal is a good conductor of electricity. Name the allotrope. (d) Name a non-metal which is known to form the largest number of compounds. (e) Name a non-metal other than carbon which shows allotropy. Name a non-metal which is required for combustion.

ScienceClass 9CBSEAnswered 27 Mar 2026
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Answers

  1. Iodine is a lustrous non-
  2. Bromine is liquid at room temperature
  3. Graphite is an allotropic form of Carbon (non-metal), which is a good conductor of
  4. Carbon is a non-metal which can form the largest number of
  5. Sulphur and Phosphorous are the non-metals which show
  6. Oxygen is a non-metal which is required for

Classify the substances given in Fig. 2.2 into elements and

Science · Class 9