Which of the following substances cause temporary hardness in water? 1. Mg(HC03)2 2. Ca(HC03)2 3. CaCl2 4. MgS04 Select the correct answer using the code given below.

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Q: 30 (CDS-I/2018)

Which of the following substances cause temporary hardness in water?
1. Mg(HC03)2
2. Ca(HC03)2
3. CaCl2
4. MgS04
Select the correct answer using the code given below.
AnyChart Trial Version

question_subject: 

Ecology

question_exam: 

CDS-I

stats: 

0,23,39,15,17,7,23

keywords: 

{'cacl2': [0, 0, 0, 1], 'temporary hardness': [0, 0, 0, 3], 'substances': [0, 0, 1, 1], 'water': [65, 15, 80, 129], 'mgs04': [0, 0, 0, 1]}