Question

sulphur is heated with sodium hydroxide solution​

Answer 1

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sulphur is heated with NaOH (aq). solution : sulphur reacts with sodium hydroxide (strong base) to produce sodium sulphide, sodium thiosulfate and water. it is disproportionation reaction. here sulphur oxidizes from zero to + 4 in sodium thiosulfate and reduces from zero to - 2 in sodium sulphide.

Answer 2

When a base reacts with a metal metal salt in hydrogen gas are formed. In this reaction metal is zinc & base is Sodium hydroxide. When sodium hydroxide solution is heated with zinc granules then Sodium zincate and hydrogen gas are formed. ... All the metals do not react with bases to form salt and hydrogen gas..