Advertisements
Advertisements
प्रश्न
Show the formation of Na2O by the transfer of electrons.
Advertisements
उत्तर
`Na_2O`
Na=11=2,8,1 (Valency = 1)
O = 8 = 2,6 (Valency = 2)
(a) `Na → Na^(+)+ e^-`
`(Na → Na^(+)+e^-) xx 2`
`2Na → 2Na + 2e^-`
(b) `O + e^(-)→ O^-`
`(O + e^(-) → O^- ) xx 2`
`2O + 2e^(-) → O^-`

`i.e. 2Na + O → Na_2O`
APPEARS IN
संबंधित प्रश्न
How will you indicate the following effect in a chemical equation?
A solution made in water.
What is meant by a chemical reaction? Explain with the help of an example.
One of the following does not happen during a chemical reaction. This is:
Write the balanced chemical equation of the following reaction.
aluminium + sodium hydroxide + water → sodium meta aluminate + hydrogen
In certain reaction an insoluble solid called precipitate is formed. State the colour and name of the precipitate formed in the following reaction involving addition of:
Iron [II] sulphate to sodium hydroxide.
In certain reaction an insoluble solid called precipitate is formed. State the colour and name of the precipitate formed in the following reaction involving addition of:
Lead nitrate to ammonium hydroxide.?
Give an example of a chemical equation in which two reactants form:
one product
Balance the following simple equation:
Ca + H2O → Ca(OH)2 + H2
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
Fe2O3 + 2H2 → 2Fe + 3H2O
Balance the given chemical reaction as per the instructions below.
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
Balance the equation with proper coefficient and rewrite the equation.
