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Question 28

An aqueous solution of a crystalline salt reacts with dilute HCl to give a yellow precipitate and a gas that turned dichromate paper green. The crystalline salt may be

  • A.Na2S2O3.5H2O
  • B.Na2CO3.10H20
  • C.Na2S
  • D.NaHCO3
Objective

Question details

Exam body
FUNAAB
Subject
Chemistry
Year
2021/2022
Question no.
#28
Type
Objective
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