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प्रश्न
State three reasons (of which at least one must be chemical) for believing that sulphur is a non-metal.
उत्तर
(i) Sulphur is not lustrous, which shows that it is a non-metal.
(ii) Sulphur is a non-sonorous material, which shows that it is a non-metal.
(iii) Sulphur reacts with oxygen to form sulphur dioxide that is acidic in nature. This shows that it is a non-metal.
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