Which of the following oxides cannot be reduced by hydrogen?

  • A
    Hot $CuO$
  • B
    $Fe_2O_3$
  • C
    Hot $SnO_2$
  • D
    Hot $Al_2O_3$

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Similar Questions

Hydrogen can be produced by heating

Which of the following statements is incorrect?

Fill in the blanks:
$(1)$ In the crystal structure of ice, the oxygen atom is at a distance of $276 \ pm$ from four hydrogen atoms.
$(2)$ The relative proportion of tritium to protium is $1: 10^{18}$.

The calorific value of producer gas is low because of:

Match List $I$ with List $II$
List $I$List $II$
$A.$ Cobalt catalyst$I.$ $(H_2 + Cl_2)$ production
$B.$ Syngas$II.$ Water gas production
$C.$ Nickel catalyst$III.$ Coal gasification
$D.$ Brine solution$IV.$ Methanol production

Choose the correct answer from the options given below:

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