\( \left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+} \) अनुचुम्बकीय है जबाकि \( \lef...
\( \left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+} \) अनुचुम्बकीय है जबाकि \( \left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-} \) प्रतिचुम्बकीय है। स्पष्ट कीजिए क्यों?
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