Q7 / 199 · NTA Abhyas (NEET) 2020 · Chemistry · Electrochemistry

Red hot carbon will remove oxygen from the oxides XO and YO not from ZO. Y will remove oxygen from XO. Use this evidence to deduce the order of activity of the three metals X, Y and Z putting the most reactive first

  • A
    X, Y, Z
  • Correct answer
    B
    Z, Y, X
  • C
    Y, X, Z
  • D
    Z, X, Y

Solution

Carbon does not reduce ZO and thus, is more reactive. Also Y removes oxygen from XO and thus, Y is more active than X. Thus, activity order is Z, Y, X.
 

Hence, the correct answer is option: 'B'.

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