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Anita prepared a fresh solution of sodium hydroxide in a test tube. She dropped a small piece of aluminium foil into it and then brought a burning matchstick near the mouth of the test tube. She heard a pop sound. The pop sound indicates the presence of
  • a)
    water gas
  • b)
    oxygen gas
  • c)
    hydrogen gas
  • d)
    aluminium gas
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Anita prepared a fresh solution of sodium hydroxide in a test tube. Sh...
The 'pop' sound indicates the presence of hydrogen gas, as metals react with sodium hydroxide to produce hydrogen gas.
2Al + 2NaOH → 2NaAlO2 + H2
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Anita prepared a fresh solution of sodium hydroxide in a test tube. She dropped a small piece of aluminium foil into it and then brought a burning matchstick near the mouth of the test tube. She heard a pop sound. The pop sound indicates the presence ofa)water gasb)oxygen gasc)hydrogen gasd)aluminium gasCorrect answer is option 'C'. Can you explain this answer?
Question Description
Anita prepared a fresh solution of sodium hydroxide in a test tube. She dropped a small piece of aluminium foil into it and then brought a burning matchstick near the mouth of the test tube. She heard a pop sound. The pop sound indicates the presence ofa)water gasb)oxygen gasc)hydrogen gasd)aluminium gasCorrect answer is option 'C'. Can you explain this answer? for CTET & State TET 2024 is part of CTET & State TET preparation. The Question and answers have been prepared according to the CTET & State TET exam syllabus. Information about Anita prepared a fresh solution of sodium hydroxide in a test tube. She dropped a small piece of aluminium foil into it and then brought a burning matchstick near the mouth of the test tube. She heard a pop sound. The pop sound indicates the presence ofa)water gasb)oxygen gasc)hydrogen gasd)aluminium gasCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for CTET & State TET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Anita prepared a fresh solution of sodium hydroxide in a test tube. She dropped a small piece of aluminium foil into it and then brought a burning matchstick near the mouth of the test tube. She heard a pop sound. The pop sound indicates the presence ofa)water gasb)oxygen gasc)hydrogen gasd)aluminium gasCorrect answer is option 'C'. Can you explain this answer?.
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