Which of the following substances cause temporary hardness in water?
1. Mg(HCO3)2
2. Ca(HCO3)2
3. CaCl2
4. MgSO4
There are two types of water hardness: temporary and permanent hardness. Temporary hardness is due to the presence of calcium hydrogen carbonate Ca(HCO3)2(aq) and magnesium hydrogen carbonate Mg(HCO3)2(aq).
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' Misch metal ' is widely used in manufacture of which of the following
Select the antonym of
seedy
Improve the bracketed part of the sentence.
She is expected to be a candidate of continuity and is also expected to take a stand for ("radically economic transformation").
Select the synonym of
perusal
In which language was the ' Shrimad Bhagavad Gita ' originally written
Oval stadium in England is associated with
antagonize