The two metal ions that cause hardness to water are:?

Calcium, Magnesium
Sodium, Calcium
Sodium, Potassium
Sodium, Magnesium

LohaHridoy

5 views

2025-01-04 04:42

1 Answers

AhmedNazir

Answer: Option 1

Calcium and magnesium ion cause hardness of water.

5 views Answered 2022-09-01 13:21

Related Questions

Proximate Cause refer to the _________ cause which set in motion a chain of events producing loss.?

1 Answers 4 Views

Statement : Residents from Model Colony coming under North Ward of City X have complained to the Ward Officer that for last three days the tap water in the ward is contaminated and no action is being initiated by municipal staff. Courses of Action : I. The Ward Officer of North Ward should initiate action against residents who have lodged complaints against municipal staff. II. The Ward Officer should ask his junior officer to visit Model Colony to assess the actual condition of water with his staff and to get samples of water tested from laboratories. III. The Ward Officer should ask Ward Engineer to check water installations and pipelines in the Model Colony area.?

1 Answers 6 Views

The method that cannot be used for removing permanent hardness of water is?

1 Answers 4 Views

A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be?

1 Answers 5 Views

Permanent hardness of water may be removed by addition of?

1 Answers 5 Views

Hardness of the water is commonly measured in terms of?

1 Answers 4 Views

Maximum permissible concentration of total hardness in drinking water is?

1 Answers 5 Views

If a gas metal arc process uses a low arc voltage and the arc is continuously interrupted as the molten electrode metal fills up the arc gap is known as?

1 Answers 5 Views

In a metal arc welding process, a gas metal arc welding with magnetized flux is used and can be done in all the positions i.e. flat position, vertical position or inclined position.?

1 Answers 8 Views

The operation of producing cup shaped parts from flat sheet metal blanks by bending and plastic flow of metal, is known as?

1 Answers 5 Views

এক্সাম দিয়ে মেধা যাচাই করুন

Job Preparation (1125)

Admission (754)

এসএসসি (10)

এইচএসসি (5)