MCQ
निम्न में से कौन-सा पारा चुम्बकीय है?
- A$\left[ Ni ( CO )_4\right]^{2+}$
- B$\left[ Co \left( NH _3\right)_6\right]^{3+}$
- C$\left[ Ni ( CN )_4\right]^{2-}$
- ✓$\left[ NiCl _4\right]^{2-}$
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