Gujarat BoardEnglish MediumSTD 11 ScienceChemistry6.2. Equilibrium - II (icon Equilibrium)1 Mark
MCQ
Correct formula of calomel is
✓
$H{g_2}C{l_2}$
B
$HgC{l_2}$
C
$HgC{l_2}.{H_2}O$
D
$HgS{O_4}$
✓
Answer
Correct option: A.
$H{g_2}C{l_2}$
a Correct formula of calomel is $Hg _2 Cl _2$. Calomel is mercurous chloride or mercury $(I)$ chloride. It is used into calomel electrode which is metal-sparingly soluble salt electrode. it is secondary reference electrode.
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