Question:medium

Identify the pair of chlorides responsible for permanent hardness of water.

Show Hint

Permanent hardness is due to chlorides and sulphates of calcium and magnesium, such as \(CaCl_2\), \(MgCl_2\), \(CaSO_4\), and \(MgSO_4\).

Updated On: May 7, 2026

\(NaCl,\ KCl\)
\(CaCl_2,\ KCl\)
\(AlCl_3,\ MgCl_2\)
\(MgCl_2,\ CaCl_2\)

Show Solution

The Correct Option is D

Solution and Explanation

Was this answer helpful?

0

Top Questions on water

What is the volume occupied by 1 molecule of water, if its density is 1 g/cm$^3$?
- MHT CET - 2025
- Chemistry
- water
View Solution
Which one of the following removes temporary hardness of water?
- BITSAT - 2019
- Chemistry
- water
View Solution
Identify the structure of water in the gaseous phase.
- BITSAT - 2017
- Chemistry
- water
View Solution
Which one of the following removes temporary hardness of water?
- BITSAT - 2015
- Chemistry
- water
View Solution
Want to practice more? Try solving extra ecology questions todayView All Questions

Questions Asked in AP ECET Ceramic Tech exam

If \[ \frac{2x+5}{(x-1)(x+3)} = \frac{A}{x-1} + \frac{B}{x+3}, \] then \[ A+B = \; ? \]

AP ECET Ceramic Tech - 2025
Calculus

If \[ \frac{3x-1}{(x-1)(x-2)(x-3)} = \frac{A}{x-1} + \frac{B}{x-2} + \frac{C}{x-3}, \] then the values of \((A,B,C)\) are

AP ECET Ceramic Tech - 2025
Calculus

If \(\sin\theta=\frac{3}{5}\), then \(\cos\theta=\)

AP ECET Ceramic Tech - 2025
Trigonometry

If \(\cos\theta\cosec\theta=-1\) and \(\theta\) lies in the second quadrant, then \(\cos\theta=\)

AP ECET Ceramic Tech - 2025
Trigonometry