MCQ
Which of the following may be colourless
- A$C{r^{ + 3}}$
- ✓$C{u^ + }$
- C$F{e^{ + 3}}$
- D$C{u^{2 + }}$
✓
Answer
Correct option: B.
$C{u^ + }$
b
(b)
(b)
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