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Chemistry · PYQ NEET UG 2019(2)

हिन्दी

Identify the CORRECT formula of 'oleum' from the following.

  1. A
    \( \mathrm{H_2S_2O_8} \)
  2. B
    \( \mathrm{H_2S_2O_7} \)
  3. C
    \( \mathrm{H_2SO_3} \)
  4. D
    \( \mathrm{H_2SO_4} \)
View Answer & Solution

Correct answer · Option B

\( \mathrm{H_2S_2O_7} \)

Explanation

Oleum is pyrosulfuric acid, having the chemical formula \( \mathrm{H_2S_2O_7} \).

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