Which of the following shows the structure and geometry of hydroxylamine?

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Question restatement: Which of the following shows the structure and geometry of hydroxylamine?

Option 1: Structure 1. This depiction appears to place two hydroxyl (OH) groups bonded to nitrogen along with a hydrogen. Hydroxylamine has the formula NH2OH, meaning nitrogen is bonded to two hydrogens and one OH group. A structure with two OH groups on N corresponds to dihydroxylamine (NH(OH)2), not hydroxylamine, so this option is incorrect.

Option 2: Structure 2. Here, nitrogen is shown bonded to two hydrogens and to one OH group, which matches NH2OH. The geometry around nitrogen in hydroxylamine is approximately tetrahedral due to the four substituents (two H, one OH, and one lone pair). This option correctly reflects both the connectivity (N–H, N–H, N–OH) and the expected valence, so it is correct.

Option 3: Structure 3. This drawing appears to place three OH groups attached to nitrogen (N bonded to OH on top and OH groups on the sides) which would correspond to NH(OH)2 or a higher oxidation state arrangement not consistent with hydroxylamine’s formula NH2OH. This is not correct for hydroxylamine.

Option 4: Structure 4. This image depicts nitrogen bonded to hydrogen atoms and to an OH group as well, but the arrangement shown does not match the correct connectivity or might imply a different isomer or protonation state. Since hydroxylamine specifically has two N–H bonds and one N–O–H unit, this option misrepresents the standard connectivity, so it is incorrect.

Summary: Among the four options, Structure 2 aligns with hydroxylamine’s chemical formula NH2OH, showing two N–H bonds and one N–OH bond with appropriate tetrahedral geometry. The other structures either depict an incorrect number of N–OH attachments or depict isomers/tautomeric forms not representative of hydroxylamine.

Chemistry 2 and Chemical Physics 2 Experiment T: Titration - Prelab Quiz Chemistry 2 and Chemical Physics 2 Experiment T: Titration - Prelab Quiz

Which of the following shows the structure and geometry of hydroxylamine?

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