Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Periodic Table

Which of the following is colourless?

1

[Cu(PPh3)4]+

2

\(\rm MnO_4^-\)

3

[Ni(H₂O)₆]²⁺

4

More than one of the above

5

None of the above

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