Advertisements
Advertisements
प्रश्न
Write an equation for the reaction of:
Sodium with oxygen
Advertisements
उत्तर
\[\ce{\underset{(Metal)}{\underset{Sodium}{4Na_{(s)}}} + \underset{(From air)}{\underset{Oxygen}{O2_{(g)}}} -> \underset{(Basic oxide)}{\underset{Sodium oxide}{2Na2O_{(s)}}}}\]
APPEARS IN
संबंधित प्रश्न
Write the chemical reaction when iron reacts with dilute H2SO4.
Show the formation of Na2O by the transfer of electrons.
Food cans are coated with tin and not with zinc because ______.
Explain the following reaction with the help of a balanced chemical equation:
Magnesium reacts with hot water.
Give reason for the following:
Blue colour of copper sulphate solution is destroyed when iron filings are added to it.
Complete and balance the following equation:
Na + O2 →
Which of the following elements would yield an acidic oxide.
Na, S, C, K, H
What type of oxides are formed when metals combine with oxygen? Explain with the help of an example.
Why does aluminium not react with water under ordinary conditions?
Why is white phosphorus kept immersed under water?
What is the action of water on aluminium ? Write equation of the chemical reaction involved.
Name one metal which displaces silver from silver nitrate solution and one which does not.
Which non-metal has been placed in the reactivity series of metals?
An element is soft and can be cut with a knife. If is very reactive and cannot be kept open in the air. It reacts vigorously with water. The element is most likely to be:
(a) Mg
(b) S
(c) P
(d) Na
An element X forms two oxides XO and XO2. The oxide XO has no action on litmus solution but oxide XO2 turns litmus solution red.
(a) What is the nature of oxide XO?
(b) What is the nature of oxide XO2?
(c) Would you call element X a metal or a non-metal? Give reason for your choice.
(d) Can you give an example of element like X?
Rewrite the following statement by selecting the correct option.
A solution of Al2(SO4)3 in water is _____________.
Explain the following:
Reactivity of aluminium decrease if it is dipped in nitric acid.
Find the odd one out:
Why is acidified water considered to be a good conductor of electricity?
