Advertisements
Advertisements
प्रश्न
How does it occur in the free state and in the combined state.
Advertisements
उत्तर
Water occurs in free state : In the form of ice, snow, frost
As – river water, lake water, sea water, spring water
As – water vapour, clouds, mist, fog
In combined state : In plants and animals, in hydrated salts i.e., MgCl2.6H2O and in certain minerals, milk, dry cereals and in green vegetables.
APPEARS IN
संबंधित प्रश्न
Complete the following chemical reaction.
\[\ce{PbS_{(s)} + H_2O_{2(aq)} ->}\] ______
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.
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.
Give a balanced equation for the following conversion:
Iron to triiron tetroxide using steam.
State a reason to prove that water is a compound and not a element.
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?
Write a short note on the catalytic nature of water.
Write the chemical equation for the production of water when zinc reacts with sulphuric acid.
The metal that gives hydrogen gas upon treatment with both acid as well as base is ______.
