Which of the following compounds contains hydrogen in a +1 oxidation state?

Which of the following compounds contains hydrogen in a +1 oxidation state?

Step 1: Understand what oxidation state means. It refers to the charge of an atom in a compound.
Step 2: Identify the compounds given in the question. We need to check each one for hydrogen's oxidation state.
Step 3: Recall that in most compounds, hydrogen has an oxidation state of +1, except when it is bonded to metals where it can be -1.
Step 4: Look at the compound water (H2O). Here, hydrogen is bonded to oxygen.
Step 5: Determine the oxidation state of hydrogen in water. Since oxygen is -2, and there are two hydrogens, each hydrogen must be +1 to balance the charge.
Step 6: Conclude that in water (H2O), hydrogen has an oxidation state of +1.

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