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Question: Answered & Verified by Expert
A colourless organic compound gives brisk effervescences with a mixture of sodium nitrite and dil. HCl. It could be
ChemistryCarboxylic Acid DerivativesNEET
Options:
  • A Oxalic acid
  • B Acetic acid
  • C Urea
  • D Glucose
Solution:
2915 Upvotes Verified Answer
The correct answer is: Urea
NaNO2+HClHNO2+NaCl

H 2 NCONH 2 Urea + HNO 2 CO 2 + NH 3 + H 2 O+ N 2

CO2 gas evolves with brisk effervescence.

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