Advertisements
Advertisements
प्रश्न
State a reason to prove that water is a compound and not a element.
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Consider the reaction of water with F2 and suggest, in terms of oxidation and reduction, which species are oxidized/reduced.
Complete the following chemical reaction.
\[\ce{CaO_{(s)} + H_2O_{(g)} ->}\]?
Classify the chemical reaction into (a) hydrolysis, (b) redox and (c) hydration reactions.
Complete the following chemical reaction.
\[\ce{AlCl_{3(g)} + H_2O_{(l)} ->}\] ?
Classify the chemical reaction into (a) hydrolysis, (b) redox and (c) hydration reactions.
Complete the following chemical reaction.
\[\ce{Ca_3N_{2(s)} + H_2O_{(l)} ->}\] ?
Classify the chemical reaction into (a) hydrolysis, (b) redox and (c) hydration reactions.
Write chemical reactions to show the amphoteric nature of water.
Give a balanced equation for the following conversion:
Iron to triiron tetroxide using steam.
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?
Write a short note on the catalytic nature of water.
Polyphosphates are used as water softening agents because they ______.
