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Question 1 of 10
1. Question
1 point(s)Which of the following is correct about the colour of halogen when dissolve in water?
CorrectIncorrect -
Question 2 of 10
2. Question
1 point(s)2 reactants A and B are mixed with tetrachloromethane. Which of the following is correct about the reactants and the colour of tetrachloromethane at the end of the experiment?
Reactants A and B Colour of Tetrachloro-methane A Potassium iodide solution + chlorine water Colourless B Potassium chloride solution + bromine water Brown C Potassium iodide solution + bromine water Purple D Potassium bromide solution + iodine water Brown CorrectIncorrect -
Question 3 of 10
3. Question
1 point(s)Metal which placed higher in the electrochemical series
CorrectIncorrect -
Question 4 of 10
4. Question
1 point(s)When an ion of metal is displaced by a more reactive metal, the ion of metal
CorrectIncorrect -
Question 5 of 10
5. Question
1 point(s)The following ionic equation shows the reaction between iron(II) sulphate solution and acidified potassium dichromate(VI) solution
Cr₂O₇²⁻ + 14H+ + 6Fe²⁺ → 2Cr³⁺ + 6Fe³⁺ + 7H₂O
Which of the following statements are true about this reaction?
CorrectIncorrect -
Question 6 of 10
6. Question
1 point(s)The figure shows an experiment carried out for iron(II) sulphate. Which of the following may be solution X?
CorrectIncorrect -
Question 7 of 10
7. Question
1 point(s)The figure shows an experiment to study the redox reaction on iron (III) sulphate solution. The orange colour of iron (III) sulphate solution turn green when a few drops of solution X is added into it. Possibly, solution X is
CorrectIncorrect -
Question 8 of 10
8. Question
1 point(s)2Fe²⁺ + Cl₂ → 2Fe³⁺ + 2Cl⁻
The ionic equation above shows the redox reaction between iron(II) sulphate and chlorine. Which of the following is true about the reaction?CorrectIncorrect -
Question 9 of 10
9. Question
1 point(s)The following ionic equation represents a redox reaction
2Fe²⁺ + Br₂ → 2Fe³⁺ + 2Br⁻
Which of the following statements is true?
CorrectIncorrect -
Question 10 of 10
10. Question
1 point(s)Cr₂O₇²⁻ + 14H⁺ + 6Fe²⁺ → 2Cr³⁺ + 6Fe³⁺ + 7H₂O
The ionic equation above shows the reaction between iron(II) sulphate solution and acidified potassium dichromate(VI) solution. Which of the following statements are true about this reaction?
CorrectIncorrect