Advertisements
Advertisements
प्रश्न
Define reduction.
Advertisements
उत्तर
Those reactions in which hydrogen combines with a substance or oxygen is removed from a substance, are known as reduction reactions.
Example: \[\ce{2HgO->[heat]2Hg +O2}\]
APPEARS IN
संबंधित प्रश्न
A shiny brown-coloured element ‘X’ on heating in air becomes black in colour. Name the element ‘X’ and the black-colored compound formed.
Identify the component oxidised in the following reaction:
\[\ce{H2S + Cl2 -> S + 2HCl}\]
Define the following in terms of gain or loss of hydrogen with one example:
Oxidation
Define the following in terms of gain or loss of hydrogen with one example:
Reduction
Identify the substances that are oxidised and the substances that are reduced in the following reaction.
\[\ce{CuO_{(s)} + H2_{(g)} -> Cu_{(s)} + H2O_{(l)}}\]
State, giving reason, whether the substances printed in bold letters have been oxidized or reduced.
PbO + CO → Pb + CO2
State whether the following conversion is oxidation or reduction:
Cu2+ + 2 e-→ Cu
Name:
a substance that oxidizes concentrated HCl to chlorine.
Choose the odd one out and write the reason:
Identify the type of chemical reaction given below:
\[\ce{2Mg + O2 -> 2MgO}\]
