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BITSAT 2012
Exam
BITSAT
Year
2012
Subject
Chemistry
Chapter
d and f Block Elements

BITSAT 2012 · Chemistry · d and f Block Elements

An extremely hot copper wire reacts with steam to give

An extremely hot copper wire reacts with steam to give

Options

  1. ACuO\mathrm{CuO}
  2. BCu2O\mathrm{Cu}_{2} \mathrm{O}
  3. CCu2O2\mathrm{Cu}_{2} \mathrm{O}_{2}
  4. DCuO2\mathrm{CuO}_{2}

Correct answer

B. Cu2O\mathrm{Cu}_{2} \mathrm{O}

Step-by-step solution

2Cu Hot +H2O⟶ Steam Cu2O+H2↑\underset{\text{ Hot }}{2 \mathrm{Cu}}+\underset{\text{ Steam }}{\mathrm{H}_{2} \mathrm{O} \longrightarrow} \mathrm{Cu}_{2} \mathrm{O}+\mathrm{H}_{2} \uparrow
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