Question:
Identify correctly matched sets:
I. NaHCO$_3$ - fire extinguisher
II. Na$_2$CO$_3$ - water softening
III. NaOH - purification of bauxite
Identify correctly matched sets:
I. NaHCO$_3$ - fire extinguisher
II. Na$_2$CO$_3$ - water softening
III. NaOH - purification of bauxite
I. NaHCO$_3$ - fire extinguisher
II. Na$_2$CO$_3$ - water softening
III. NaOH - purification of bauxite
Show Hint
Know industrial applications of common salts.
Check chemical reactions for use.
NaHCO$_3$, Na$_2$CO$_3$, NaOH have distinct roles.
Updated On: Mar 3, 2026
- I, II only
- II, III only
- I, III only
- I, II, III
Hide Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
• NaHCO$_3$ decomposes releasing CO$_2$ → fire extinguisher.
• Na$_2$CO$_3$ precipitates Ca$^{2+}$, Mg$^{2+}$ → water softening.
• NaOH reacts with Al$_2$O$_3$ in bauxite → purification.
• Na$_2$CO$_3$ precipitates Ca$^{2+}$, Mg$^{2+}$ → water softening.
• NaOH reacts with Al$_2$O$_3$ in bauxite → purification.
Was this answer helpful?
0
0
Top Questions on Halides and Hydrides of alkali
- Identify the correct statements
I. Lithium halides are somewhat covalent in nature
II. NaNO$_3$ on heating gives NO$_2$ gas
III. LiHCO$_3$ is a solid
IV. All alkali metals form ethynides on reaction with ethyne- TS EAMCET - 2025
- Chemistry
- Halides and Hydrides of alkali
- Among alkaline earth metals, metal with least melting point is:
- TS EAMCET - 2025
- Chemistry
- Halides and Hydrides of alkali
- Which of the following compounds are correctly matched with their uses?
- TS EAMCET - 2025
- Chemistry
- Halides and Hydrides of alkali
- The correct order of reducing power of alkali metals in aqueous solution is
- TS EAMCET - 2024
- Chemistry
- Halides and Hydrides of alkali
- Observe the following statements
Statement I : Ca(OH)$_2$; is used in white wash
Statement 11 : \(CaCO_3\) is used as mild abrasive in tooth paste- TS EAMCET - 2024
- Chemistry
- Halides and Hydrides of alkali
View More Questions
Questions Asked in TS EAMCET exam
- The equation having the multiple root of the equation $x^4 + 4x^3 - 16x - 16 = 0$ as its root is
- TS EAMCET - 2025
- System of Linear Equations
- If $\alpha, \beta, \gamma, \delta$ are the roots of the equation $x^4 - 4x^3 + 3x^2 + 2x - 2 = 0$ such that $\alpha$ and $\beta$ are integers and $\gamma, \delta$ are irrational numbers, then $\alpha + 2\beta + \gamma^2 + \delta^2 =$
- TS EAMCET - 2025
- System of Linear Equations
- If both roots of the equation $x^2 - 5ax + 6a = 0$ exceed 1, then the range of 'a' is
- TS EAMCET - 2025
- System of Linear Equations
- If the equations $x^2 + px + 2 = 0$ and $x^2 + x + 2p = 0$ have a common root then the sum of the roots of the equation $x^2 + 2px + 8 = 0$ is
- TS EAMCET - 2025
- System of Linear Equations
- If $\alpha$ is a root of the equation $x^2-x+1=0$ then $(\alpha + \frac{1}{\alpha}) + (\alpha^2 + \frac{1}{\alpha^2}) + (\alpha^3 + \frac{1}{\alpha^3}) + \dots$ to 12 terms =
- TS EAMCET - 2025
- Complex numbers
View More Questions