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प्रश्न
State a reason to prove that water is a compound and not a element.
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उत्तर
Three reasons are :
- Water has new properties than its constituents [i.e. H2 and O2]. H2 is a combustible gas, O2 gas is a supporter of combustion but water is liquid.
- In water hydrogen and oxygen, elements combine in fixed ratio by weight 1 : 8.
- Components of water i.e. H2 and oxygen can be separated by chemical means e.g. by electrolysis of water.
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संबंधित प्रश्न
Complete the following chemical reaction.
\[\ce{Ca_3N_{2(s)} + H_2O_{(l)} ->}\] ?
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How the temporary and permanent hardness is removed?
Give a reason why metals are arranged in a series called – ‘activity series of metals’. Name a metal which reacts with
(a) Cold water
(b) Boiling water
(c) Steam to liberate hydrogen in each case.
How does it occur in the free state and in the combined state.
Why is fused calcium chloride and not potassium chloride kept in a desiccator?
How can production of hydrogen from water gas be increased by using water gas shift reaction?
