Reaction With Water
Reaction With Water
Reaction of metal with water:
Different metals react differently with water . It depends on the reactivity of the metal .Some metals react with water at ordinary temperature, some reacts only with hot water, while some metals react with the steam.In each case their occur formation of metal oxide and release of hydrogen gas.
Most metals react with water to produce a metal hydroxide or metal oxide and hydrogen gas. If reaction takes place at ordinary temperature, metal hydroxide is formed and if reaction takes place at a higher temperature, metal oxide is formed.
Or
Metals Like Potassium, Sodium and Calcium : These metals decompose water at ordinary temperature as they are highly reactive.
The reaction of sodium and potassium with water is so violent and exothermic that the hydrogen gas produced catches fire immediately.
Which of the following are correct : (a) Metals like Magnesium do not react with cold water as it is less reactive . (b) Most metals react with water to produce a metal hydroxide or metal oxide and hydrogen gas. (c) The reaction of sodium and potassium with water is so violent and exothermic. | |||
| Right Option : D | |||
| View Explanation | |||
The metal which reacts with water only when it is red hot and steam passed over it is : | |||
| Right Option : A | |||
| View Explanation | |||
The Sulphuric acid turns _______ litmus paper into ___________ | |||
| Right Option : C | |||
| View Explanation | |||
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