Which of the following is a hydride reducing agent?Select answer from the options belowH2ONaNH2NaBH4NH4+Save for LaterSubmit Answer

Step 1: Break Down the Problem

We're looking for a hydride reducing agent among the provided options. A hydride reducing agent typically donates a hydride ion (H⁻) in redox reactions.

Step 2: Relevant Concepts

• Hydride Reducing Agents: Compounds that contain a hydride ion (H⁻) and can transfer this to other substances, thus reducing them.
• Common examples include metal hydrides such as NaBH₄ (Sodium borohydride).

Step 3: Analyze Each Option

1. H₂O (Water): Does not serve as a hydride reducing agent.
2. NaNH₂ (Sodium amide): Primarily acts as a strong base, not a reducing agent for hydrides.
3. NaBH₄ (Sodium borohydride): Known as a strong hydride reducing agent, it releases hydride ions in reactions.
4. NH₄⁺ (Ammonium ion): Typically acts as an acid and does not donate hydride ions.

Step 4: Verify and Summarize

After examining the choices, NaBH₄ is recognized as a hydride reducing agent due to its ability to provide hydride ions (H⁻) in reactions.

Final Answer

The hydride reducing agent is NaBH₄ (Sodium borohydride).