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A student planned to prepare hydrogen …

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A student planned to prepare hydrogen gas in the laboratory by taking zinc granules and dillute sulphuric acid. What will happen if he uses : (i) same amount of zinc dust in place of zinc granules. (ii) same amount of copper in place of zinc. (iii) sodium hydroxide solution in place of sulphuric acid.

Posted by Vaibhav Pandey 4 years, 11 months ago

CBSE > Class 10 > Science

1 answers

Madhav Kumar 4 years, 11 months ago

1)znso4 +h2 is formed. It doesn't matter what you take between dust or granules of zinc because both are in solid state. 2)No reaction takes place because copper is less reactive than hydrogen. 3)Sodium zincate and hydrogen gas is formed. I hope you satisfied from this answer. THANKS.

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CBSE > Class 10 > Science