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प्रश्न
Give reason for the following:
Dilute sulphuric acid cannot be replaced by concentrated acid in the preparation of hydrogen.
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उत्तर
Dilute sulphuric acid cannot be replaced by concentrated acid in the preparation of hydrogen because it is a strong oxidising agent and it will produce sulphur dioxide.
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संबंधित प्रश्न
Fill in the blank
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What is noticed if the products are not allowed to escape?
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materials used
For laboratory preparation of hydrogen, give the following:
chemical equation
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The end of the thistle funnel should be dipped under acid.
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Zn + HCl →_____________ +___________
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The metallic compound formed when a metal above aluminium in the activity series reacts with steam.
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Account for the following fact:
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State the electronic configuration of hydrogen [at. no. 1].e
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