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प्रश्न
Give one example electrochemical reaction.
Give an example electrochemical reaction.
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उत्तर
Acidulated water breaks into hydrogen and oxygen.
\[\ce{2H2O ->[Electricity] 2H2 + O2}\]
संबंधित प्रश्न
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer
Which of the following is a reducing agent?
- oxygen
- chlorine
- hydrogen
- none of these
Define electrolysis.
Fill in the blank:
The substances which undergo chemical change are called _______
Give an example of the following chemical changes.
A reaction involving
(i) Change of state
(ii) formation of precipitate
Distinguish by heating the following in dry test tubs.
Zinc carbonate, Copper carbonate and lead carbonate.
State the following reaction represent oxidation or reduction.
\[\ce{Fe++->Fe+++}\]
________ is a chemical substance which alters the speed of a chemical reaction.
Iron benches kept in lawns and gardens get____________. It is a _________ change because a new _________ is formed.
We are advised to not to play with fireworks. Give reason.
The reaction of H2 gas with oxygen gas to form water is an example of ______.
