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प्रश्न
How did the name 'hydrogen' originate?
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उत्तर
The name 'hydrogen' originated on account of its ability to form water.
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संबंधित प्रश्न
For laboratory preparation of hydrogen, give the following:
chemical equation
Give reason for the following:
The end of the thistle funnel should be dipped under acid.
Why are the following metals not used in the lab. preparation of hydrogen?
sodium
Complete and balance the following reaction.
Fe + H2O →_____________ +___________
Select the correct options for the following statement:
The metal which reacts with steam liberating hydrogen & the reaction is reversible.
Select the correct options for the following statement:
The metallic compound formed when a metal above aluminium in the activity series reacts with steam.
Complete and balance the equation:
[General method]
Reactions of active metals - cold water
Calcium - Ca + H2O → ______+ _______ [g]
Account for the following fact:
Though lead is above hydrogen in the activity series, it does not react with dilute hydrochloric acid or dilutes sulphuric acid.
State the electronic configuration of hydrogen [at. no. 1].e
Give a reason why hydrogen can be placed in group 1 [1A] and group 17 [VIIA] of the periodic table.
State the condition and give balanced equation for the conversion of water gas to hydrogen – in the Bosch process.
