MCQ
A dry cell converts chemical energy into:
- AMechanical energy
- BHeat energy
- CElectrical energy
- DLight energy
Explanation:
A dry cell converts chemical energy into electrical energy.
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They were labelled $ A$ and $B$ for testing.
$A$ and $ B $ were separately taken in test tubes and boiled with $NaOH$ solution.
The end solution in each tube was made acidic with dilute $HN{O_3}$ and then some $AgN{O_3}$ solution was added.
Substance $B$ give a yellow precipitate.
Which one of the following statements is true for this experiment
