Which of the following is NOT a laboratory safety rule ?You should never mix acids with basesYou should tie back your long hairYou should never add water to acidAll of the above are valid safety rules (2024)

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A

You should never mix acids with bases

B

You should never add water to acid

C

You should tie back your long hair

D

All of the above are valid safety rules

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Solution

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The correct option is A You should never mix acids with bases
Mostly acid-base mixing reactions are exothermic reactions which releases heat energy which can harm the person. So, it is advised to not mix acid and bases in the laboratory.

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Which of the following is NOT a laboratory safety rule ?You should never mix acids with basesYou should tie back your long hairYou should never add water to acidAll of the above are valid safety rules (2024)

FAQs

Which of the following is not a laboratory safety rule? ›

Thus acid can't be mixed with base is not a lab safety rule. Hence, the correct answer is option B.

Which of the following is not a good practice for dealing with acids and bases? ›

You should never mix acids with bases.

Which of the following is not allowed in a chemistry laboratory? ›

In a lab, it is not allowed to use cell phones, eat or drink, have unenrolled students present, mix chemicals without instruction, or handle open flames without careful adherence to safety instructions.

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