MCQ
Which of the following shall form an octahedral complex
- A${d^4}$ (low spin)
- B${d^8}$ (high spin)
- ✓${d^6}$ (low spin)
- DNone of these
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(image) $\xrightarrow[{N{H_4}Cl}]{{Zn}}.....?$

$CoCl _{3} . xNH _{3}+ AgNO _{3}( aq ) \rightarrow$
If two equivalents of $AgCl$ precipitate out, then the value of $x$ will be $....$