The temporary hardness of a water sample is due to compound X. Boiling this sample converts X to compound Y. X and Y, respectively are:
a)
Ca(HCO3)2 and Ca(OH)2
b)
Mg(HCO3)2 and Mg(OH)2
c)
Mg(HCO3)2 and MgCO3
d)
Ca(HCO3)2 and CaO
a)
Ca(HCO3)2 and Ca(OH)2
b)
Mg(HCO3)2 and Mg(OH)2
c)
Mg(HCO3)2 and MgCO3
d)
Ca(HCO3)2 and CaO
Question ID - 56455 | SaraNextGen Top Answer The temporary hardness of a water sample is due to compound X. Boiling this sample converts X to compound Y. X and Y, respectively are:
a)
Ca(HCO3)2 and Ca(OH)2
b)
Mg(HCO3)2 and Mg(OH)2
c)
Mg(HCO3)2 and MgCO3
d)
Ca(HCO3)2 and CaO
The temporary hardness of a water sample is due to compound X. Boiling this sample converts X to compound Y. X and Y, respectively are:
|
a) |
Ca(HCO3)2 and Ca(OH)2 |
b) |
Mg(HCO3)2 and Mg(OH)2 |
|
c) |
Mg(HCO3)2 and MgCO3 |
d) |
Ca(HCO3)2 and CaO |
1 Answer
127 votes
Answer Key / Explanation : (b) -
Temporary hardness is caused by bicarbonates of calcium and magnesium
Mg(
2 
Mg
2 
+ 2CO2 
127 votes
Answer Link
127