Home
Class 11
CHEMISTRY
Water is said to permanently hard when i...

Water is said to permanently hard when it contains

A

Sulphates of Mg and Ca

B

Bicarbonates of Mg and Ca

C

Sulphates of Cu and Hg

D

Carbonates and bicarbonates of Mg and Ca.

Text Solution

Verified by Experts

The correct Answer is:
A
Water containing sulphates of `Ca^(2+)` and `Mg^(2+)` is said to be permenetly hard.
Promotional Banner

Topper's Solved these Questions

  • HYDROGEN

    DINESH PUBLICATION|Exercise SELECTED STRAIGHT OBJECTIVE TYPE MCQs|31 Videos

  • HYDROGEN

    DINESH PUBLICATION|Exercise REASON ASSERTION TYPE MCQs|14 Videos

  • HYDROGEN

    DINESH PUBLICATION|Exercise HYDROGEN PEROXIDE|32 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    DINESH PUBLICATION|Exercise UNIT TEST - 34|1 Videos

  • MOLE CONCEPT

    DINESH PUBLICATION|Exercise Matrix-Match|4 Videos

Similar Questions

Explore conceptually related problems

Water is said to be permanently hard when it contains :

25mL samples of distiled water, tap water and boiled water required, respectively, 1mL, 13mL and 5mL of soap solution to form a permanent lather. The ratio of temporary to permanent hardness in the tap water is

The salt which imparts permanent hardness to water is

You are provided with two samples of hard water, one containing temporary hardness and the other permanent hardness. Without the help of any chemical, how will you identify the nature of the sample.