MCQ
The carbonate which does not leave a residue on heating is
- A$N{a_2}C{O_3}$
- B$A{g_2}C{O_3}$
- C$CuC{O_3}$
- ✓${(N{H_4})_2}C{O_3}$
✓
Answer
Correct option: D.
${(N{H_4})_2}C{O_3}$
d
$A]\, Na _2 CO _3( s ) \stackrel{\Delta}{\longrightarrow}$ No Reaction
$A]\, Na _2 CO _3( s ) \stackrel{\Delta}{\longrightarrow}$ No Reaction
$B] \,Ag _2 CO _3 \stackrel{\Delta}{\longrightarrow} Ag ( s )+ CO _2( g )$
$C] \,Cu _2 CO _3 \stackrel{\Delta}{\longrightarrow} CuO ( s )+ CO _2( g )$
$D] \,\left( NH _4\right)_2 CO _3 \stackrel{\Delta}{\longrightarrow} NH _3( g )+ CO _2( g )$
So, residue is not left in [$D$].
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O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
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\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
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