Which of the following statements is true about the complex [Cr(NH3)6]3+?

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Question: Which of the following statements is true about the complex [Cr(NH3)6]3+?

Options:

Correct Answer: It is octahedral

Solution:

[Cr(NH3)6]3+ has an octahedral geometry due to the six ligands surrounding the chromium ion.

Which of the following statements is true about the complex [Cr(NH3)6]3+?

Which of the following statements is true about the complex [Cr(NH3)6]3+?

Step 1: Identify the complex ion [Cr(NH3)6]3+. This means it has a chromium (Cr) ion and six ammonia (NH3) ligands.
Step 2: Understand that ligands are molecules that surround a central metal ion in a complex. In this case, there are six NH3 ligands.
Step 3: Recognize that when there are six ligands around a central metal ion, the geometry of the complex is typically octahedral.
Step 4: Conclude that since [Cr(NH3)6]3+ has six ligands, it must have an octahedral geometry.

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