The number of hydroxyl groups in hyponitrous acid is
Answers
Answer:
Structure and properties
There are two possible structures of hyponitrous acid, trans and cis. Trans-hyponitrous acid forms white crystals that are explosive when dry. In aqueous solution, it is a weak acid (pKa1 = 7.21, pKa2 = 11.54), and decomposes to nitrous oxide and water with a half life of 16 days at 25 °C at pH 1–3:
H
2N
2O
2 → H
2O + N
2O
Since this reaction is not reversible, N
2O should not be considered as the anhydride of H
2N
2O
2.[1]
The cis acid is not known,[1] but its sodium salt can be obtained.[2]
Preparation
Hyponitrous acid (trans) can be prepared from silver(I) hyponitrite and anhydrous HCl in ether:
Ag
2N
2O
2 + 2 HCl → H
2N
2O
2 + 2 AgCl
Spectroscopic data indicate a trans configuration for the resulting acid.[2]
Biological aspects
In enzymology, a hyponitrite reductase is an enzyme that catalyzes the chemical reaction[3]
H
2N
2O
2 + 2 NADH + 2 H+
↔ 2 NH
2OH + 2 NAD+
Answer:
hyponitrous acid is H 2 N 2 O2
it contains 2 hydroxyl groups.
refer to the attachment
