0 of 5 Questions completed
Questions:
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading…
You must sign in or sign up to start the quiz.
You must first complete the following:
0 of 5 Questions answered correctly
Time has elapsed
You have reached 0 of 0 point(s), (0)
Earned Point(s): 0 of 0, (0)
0 Essay(s) Pending (Possible Point(s): 0)
Average score |
|
Your score |
|
Pos. | Name | Entered on | Points | Result |
---|---|---|---|---|
Table is loading | ||||
No data available | ||||
Substances | Observation |
Metal X oxide and carbon powder | Glow |
Metal Y oxide and carbon powder | Glow |
Metal X oxide and hydrogen gas | No changes |
Metal Y oxide and hydrogen gas | Glow |
The table shows the observations of an experiment involving the heating of a metal oxide with carbon or hydrogen. Base on the observation, arrange metal X, metal Y, carbon and hydrogen in descending order of their position in reactivity series.
Substances | Observation |
Metal P oxide and carbon powder | Glow |
Metal Q oxide and carbon powder | No changes |
Metal P oxide and hydrogen gas | No changes |
The table shows the observations of an experiment involving the heating of two substances. Which of the following is correct about the reactivity of the elements towards oxygen in ascending order?
The following equation shows the reaction between copper(II) oxide and carbon.
CuO + C → Cu + CO₂
Which of the following statements is true about the reaction?
Figure above shows the arrangement of metals M, N and O according to their tendency to lose electrons. Which of the following statements are true about metals M, N and O?
The figure shows the apparatus set-up for the reaction between mixture X and oxide Y. Which of the following pairs will react when heated strongly?