Question:
Match List I with List II and choose the correct answer from the codes given below
\[
\begin{array}{c c c}
List I & & List II
A.\; NaNO_3 & & (i)\; Baking\; soda
B.\; Na(NH_4)HPO_4 & & (ii)\; Chile\; saltpetre
C.\; NaHCO_3 & & (iii)\; Microcosmic\; salt
D.\; Na_2CO_3 \cdot 10H_2O & & (iv)\; Washing\; soda
\end{array}
\]
Codes:
{c c c c c}
& A & B & C & D
Match List I with List II and choose the correct answer from the codes given below
\[
\begin{array}{c c c}
List I & & List II
A.\; NaNO_3 & & (i)\; Baking\; soda
B.\; Na(NH_4)HPO_4 & & (ii)\; Chile\; saltpetre
C.\; NaHCO_3 & & (iii)\; Microcosmic\; salt
D.\; Na_2CO_3 \cdot 10H_2O & & (iv)\; Washing\; soda
\end{array}
\]
Codes:
{c c c c c}
& A & B & C & D
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Common names to remember:
\(NaNO_3\) → Chile saltpetre
\(Na(NH_4)HPO_4\) → Microcosmic salt
\(NaHCO_3\) → Baking soda
\(Na_2CO_3 \cdot 10H_2O\) → Washing soda
\(NaNO_3\) → Chile saltpetre
\(Na(NH_4)HPO_4\) → Microcosmic salt
\(NaHCO_3\) → Baking soda
\(Na_2CO_3 \cdot 10H_2O\) → Washing soda
Updated On: Apr 16, 2026
- & (i) & (ii) & (iii) & (iv)
- & (ii) & (iii) & (i) & (iv)
- & (iii) & (i) & (ii) & (iv)
- & (iv) & (i) & (ii) & (iii)
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Concept:
Many inorganic compounds have common names based on their historical uses, sources, or appearance.
Step 1: Match A: \(NaNO_3\) (Sodium nitrate). Sodium nitrate occurs naturally in large deposits in the Atacama Desert in Chile. It was historically mined as a source of nitrates for fertilizers and gunpowder. \[ NaNO_3 \rightarrow \text{Chile saltpetre} \quad \text{(ii)} \]
Step 2: Match B: \(Na(NH_4)HPO_4\) (Sodium ammonium hydrogen phosphate). This compound is known as microcosmic salt. It was originally obtained from human urine ("microcosm" means "little world," referring to the human body) and is used in analytical chemistry for bead tests. \[ Na(NH_4)HPO_4 \rightarrow \text{Microcosmic salt} \quad \text{(iii)} \]
Step 3: Match C: \(NaHCO_3\) (Sodium bicarbonate). Sodium bicarbonate decomposes to release carbon dioxide when heated, causing dough to rise. This property makes it useful in baking. \[ NaHCO_3 \rightarrow \text{Baking soda} \quad \text{(i)} \]
Step 4: Match D: \(Na_2CO_3 \cdot 10H_2O\) (Sodium carbonate decahydrate). This hydrated form of sodium carbonate is used as a cleaning agent for laundry. \[ Na_2CO_3 \cdot 10H_2O \rightarrow \text{Washing soda} \quad \text{(iv)} \]
Step 5: Final matching. \[ A \to (ii),\quad B \to (iii),\quad C \to (i),\quad D \to (iv) \] Looking at the codes, this corresponds to option (b).
Step 1: Match A: \(NaNO_3\) (Sodium nitrate). Sodium nitrate occurs naturally in large deposits in the Atacama Desert in Chile. It was historically mined as a source of nitrates for fertilizers and gunpowder. \[ NaNO_3 \rightarrow \text{Chile saltpetre} \quad \text{(ii)} \]
Step 2: Match B: \(Na(NH_4)HPO_4\) (Sodium ammonium hydrogen phosphate). This compound is known as microcosmic salt. It was originally obtained from human urine ("microcosm" means "little world," referring to the human body) and is used in analytical chemistry for bead tests. \[ Na(NH_4)HPO_4 \rightarrow \text{Microcosmic salt} \quad \text{(iii)} \]
Step 3: Match C: \(NaHCO_3\) (Sodium bicarbonate). Sodium bicarbonate decomposes to release carbon dioxide when heated, causing dough to rise. This property makes it useful in baking. \[ NaHCO_3 \rightarrow \text{Baking soda} \quad \text{(i)} \]
Step 4: Match D: \(Na_2CO_3 \cdot 10H_2O\) (Sodium carbonate decahydrate). This hydrated form of sodium carbonate is used as a cleaning agent for laundry. \[ Na_2CO_3 \cdot 10H_2O \rightarrow \text{Washing soda} \quad \text{(iv)} \]
Step 5: Final matching. \[ A \to (ii),\quad B \to (iii),\quad C \to (i),\quad D \to (iv) \] Looking at the codes, this corresponds to option (b).
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