Multiple choice

What causes eye irritation while cutting onion?

  1. Compounds of sulphur

  2. Compounds of nitrogen

  3. Compounds of magnesium

  4. Compounds of calcium

  5. Compounds of iron
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A Correct answer
Explanation

Eye irritation can be avoided by cutting onions under running water or submerging the onions in a basin of water. Leaving the root end intact also reduces irritation as the onion base has a higher concentration of sulphur compounds than the rest of the bulb.

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