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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
Fill in the blank:
The basic conditions necessary for a chemical reaction is _______
Complete and balance the following reaction:
Pb(NO3)2 + KI →
Name: Two carbonates do not produce carbon dioxide on heating.
Give balanced equation for the following conversion affected by heat alone on the substance:
Zinc nitrate to nitrogen dioxide
Complete the table given below.
| Addition of dil. H2SO4 to KHCO3 | Name of residue obtained |
Which of the following is not an “element + element → compound” type reaction?
Write some materials prepared by chemical changes.
Why is spoiling food a chemical change?
When milk is mixed with coffee decoction, the colour of milk and decoction changes due to ______.
