Advertisements
Advertisements
प्रश्न
What is the action of water on magnesium ? Write equation of the chemical reaction involved.
उत्तर
Magnesium does not react with cold water.
(i) However, it reacts with steam rapidly to form magnesium hydroxide and hydrogen gas.
Mg(s) + H2O(g) → Mg(OH)2(aq) + H2(g)
(ii) Magnesium reacts very rapidly with steam to form magnesium oxide and hydrogen gas.
Mg(s) + H2O(g) → MgO(s) + H2(g)
APPEARS IN
संबंधित प्रश्न
Why are metals called electropositive elements whereas non-metals are called electronegative elements?
State whether the following statement is true or false:
Non-metals react with dilute acids to produce a gas which burns with a 'pop' sound.
Write equation for the reaction of sodium with oxygen.
Which of the following elements would yield an acidic oxide.
Na, S, C, K, H
What special name is given to substances like aluminium oxide.
Write the chemical equation of the reaction which takes place when iron reacts with dilute sulphuric acid. What happens when the gas produced is ignited with a burning matchstick?
State and explain the reaction, if any, of the following metals with a solution of copper sulphate:
(a) Gold
(b) Copper
(c) Zinc
(d) Mercury
Name a metal which It does not react with any physical state of water?
Choose the correct alternative and rewrite the following:
Reaction of iron nails whith copper sulphate solution is an example of _____________________
Why is acidified water considered to be a good conductor of electricity?
