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5. Co-ordination chemistry — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry5. Co-ordination chemistry1 Mark
MCQ
Which of these reaction is correct ?
  • A
    $C{l^ - } + B{r_2}\, \to \,B{r^ - } + C{l_2}$
  • ✓
    Mohr's salt $\xrightarrow{{NaOH\,solution\,}}N{H_3}\, \uparrow \,(g)$
  • C
    ${K_2}C{r_2}{O_7}$ solution $\xrightarrow{{S{O_3}\,}}$ Green colour solution
  • D
    $FeC{l_2}\,\xrightarrow{{NaOH\,}}$ (ppt. coloured) $\xrightarrow{{Excess\,NaOH\,}}$ Soluble complex
✓

Answer

Correct option: B.
Mohr's salt $\xrightarrow{{NaOH\,solution\,}}N{H_3}\, \uparrow \,(g)$
b
Any $NH^ +_4$ salt when react with base gives $NH_3$ as product

$NH_4^+ +OH^-\to NH_3 \uparrow + H_2O$

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