Question:
Which of the following is Indian saltpetre?
Which of the following is Indian saltpetre?
Show Hint
Important common names:
\[
KNO_3 \rightarrow \text{Indian saltpetre}
\]
\[
NaNO_3 \rightarrow \text{Chile saltpetre}
\]
\[
Na_2CO_3\cdot 10H_2O \rightarrow \text{Washing soda}
\]
\[
CaOCl_2 \rightarrow \text{Bleaching powder}
\]
Updated On: Jun 26, 2026
- \(NaNO_3\)
- \(KNO_3\)
- \(CsNO_3\)
- \(Mg(NO_3)_2\)
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Recall the common names of important nitrates.
Many nitrate salts are known by special common names.
\[ KNO_3 \] is commonly known as Potassium nitrate and is traditionally called Indian saltpetre
Step 2: Analyze the other options.
\[ NaNO_3 \] is known as Sodium nitrate or Chile saltpetre and not Indian saltpetre.
\[ CsNO_3 \] is cesium nitrate and has no common name as Indian saltpetre.
\[ Mg(NO_3)_2 \] is magnesium nitrate and is not called saltpetre.
Step 3: Identify the correct compound.
Therefore, \[ \text{Indian saltpetre} = KNO_3 \]
Step 4: Final conclusion.
Hence, the correct answer is \[ \boxed{KNO_3} \] Therefore, the correct option is \[ \boxed{(2)} \]
Many nitrate salts are known by special common names.
\[ KNO_3 \] is commonly known as Potassium nitrate and is traditionally called Indian saltpetre
Step 2: Analyze the other options.
\[ NaNO_3 \] is known as Sodium nitrate or Chile saltpetre and not Indian saltpetre.
\[ CsNO_3 \] is cesium nitrate and has no common name as Indian saltpetre.
\[ Mg(NO_3)_2 \] is magnesium nitrate and is not called saltpetre.
Step 3: Identify the correct compound.
Therefore, \[ \text{Indian saltpetre} = KNO_3 \]
Step 4: Final conclusion.
Hence, the correct answer is \[ \boxed{KNO_3} \] Therefore, the correct option is \[ \boxed{(2)} \]
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