Zelotie used to soften hardness of water is hydrated
a)Sodium aluminium silicate
b) Calcium aluminium silicate
c) Zinc aluminium borate
d) Lithium aluminium hydride
Answers
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0
Answer:
1 point
b²-4ac < 0
b²-4ac > 0
b²-4ac = 0
None of these
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Answer:
a) is the answer OK
Explanation:
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