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What is the oxidation state of hydrogen in NaH?

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Question: What is the oxidation state of hydrogen in NaH?

Options:

  1. -1
  2. 0
  3. +1
  4. +2

Correct Answer: -1

Solution: 

In sodium hydride (NaH), hydrogen has an oxidation state of -1 because it is bonded to a metal.

What is the oxidation state of hydrogen in NaH?

Practice Questions

Q1
What is the oxidation state of hydrogen in NaH?
  1. -1
  2. 0
  3. +1
  4. +2

Questions & Step-by-Step Solutions

What is the oxidation state of hydrogen in NaH?
  • Step 1: Identify the compound. We are looking at sodium hydride, which is written as NaH.
  • Step 2: Recognize the elements involved. Sodium (Na) is a metal, and hydrogen (H) is a non-metal.
  • Step 3: Understand the general rule for hydrogen. Hydrogen usually has an oxidation state of +1 when bonded to non-metals.
  • Step 4: Note the exception. When hydrogen is bonded to metals, it typically has an oxidation state of -1.
  • Step 5: Apply the rule to NaH. Since hydrogen is bonded to sodium, a metal, its oxidation state is -1.
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