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Question 34

Which of the following is used as water softener?

  • A.Na2CO3.10H2O
  • B.CuSO4. 5H2O
  • C.MgSO4. 7H2O
  • D.CaCI2.2H2O
  • E.Na2SO4. 10H2O
Objective

Question details

Exam body
WAEC
Subject
Chemistry
Year
1997
Question no.
#34
Type
Objective
Previous · Q33Which of the following when heated strongly in air will leave a metal as… Next · Q35 The following oxides react with both acids and bases to form salts except

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