Question 29

When water boilers are used for a long period of time, the solid substance left behind as scale are

  • A.magnesium trioxosilicate (IV) and rust
  • B.magnesium trioxosilicate (IV) and calcium tetraoxosulphate (VI)
  • C.clay and magnesium trioxosilicate (IV)
  • D.clay and rust
Objective

Question details

Exam body
FUNAAB
Subject
Chemistry
Year
2019/2020
Question no.
#29
Type
Objective

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