MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Hardness of Water and Treatment

A water sampl...

Question

A water sample is said to contain permanent hardness if water contains:

A

sulfates and chlorides of calcium and magnesium.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

carbonates of calcium and magnesium.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

bicarbonates of calcium and magnesium.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

sulfates and chlorides of sodium and potassium.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A sulfates and chlorides of calcium and magnesium.
Permanent hardness of water is due to sulfates and chlorides of calcium and magnesium. Temporary hardness of water is due to bicarbonates of calcium and magnesium.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Permanent hardness of water is due to the presence of chlorides and salts of calcium and magnesium. It can be removed by using .

Q. Permanent hardness is due to the presence of soluble salts of magnesium and calcium in the form of chlorides and sulphates in water. Permanent hardness of water can be removed by:

Q. Consider the following statements:
Hard water does not give lather with soap because hard water contains:
(a) calcium bicarbonate
(b) magnesium bicarbonate
(c) chlorides of calcium and magnesium
(d) sulphates of calcium and magnesium
Which of these statements are correct?

Q. Assertion :Permanent hardness of water can be removed by using washing soda Reason: Washing soda reacts with soluble calcium and magnesium chlorides and sulphates in hard water to form insoluble carbonates

Q. Assertion (A): Hardness of water is removed by treatment with sodium carbonate.
Reason (R): Sodium carbonate reacts with soluble magnesium and calcium chloride to form water soluble compounds.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Water - Hardness and Treatment

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Hardness of Water and Treatment

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon