Question Detail

Permanent hardness of water is due to the presence of ?

Magnesium bicarbonate
Calcium bicarbonate
Sodium bicarbonate
Calcium sulphate

Answer: Option D

Similar Questions :

1. How many different oxides are formed by nitrogen ?

two
three
four
five

Answer: Option A

2. Which one of the following metals does not react with water to produce Hydrogen?

Cadmium
Lithium
Potassium
Sodium

Answer: Option A

3. Permanent hardness of water is due to the presence of ?

Magnesium bicarbonate
Calcium bicarbonate
Sodium bicarbonate
Calcium sulphate

Answer: Option D

4. pH of water is

5
6
7
8

Answer: Option C

5. All noble gases are ?

colourless
colourless
colourless and odourless
colourless and but have odour

Answer: Option C

Read more from - Chemistry Questions Answers