In the manufacture of $H_2SO_4$,platinized asbestos is used as a catalyst. This is an example of.......

  • A
    Positive catalyst
  • B
    Heterogeneous catalyst
  • C
    Autocatalyst
  • D
    Induced catalyst

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Similar Questions

Write down the use of $ZSM-5$.

Reactions in $Zeolite$ catalysts depend on

Match the following industrial processes in List-$I$ with the catalysts used in List-$II$:
List-$I$ (Industrial process)List-$II$ (Catalyst used)
$A$. Ostwald's process$I$. $CuCl_2$
$B$. Haber's process$II$. Zeolites
$C$. Deacon's process$III$. $Pt$ gauge
$D$. Cracking of hydrocarbons$IV$. $Fe$

The decomposition of $H_2O_2$ can be slowed down by the addition of a small amount of phosphoric acid,which acts as:

Match List-$I$ with List-$II$.
List-$I$ (Processes/Reactions) List-$II$ (Catalyst)
$A. 2 SO_{2(g)} + O_{2(g)} \rightarrow 2 SO_{3(g)}$ $I. V_{2}O_{5}$
$B. 4 NH_{3(g)} + 5 O_{2(g)} \rightarrow 4 NO_{(g)} + 6 H_{2}O_{(g)}$ $II. Pt_{(s)}-Rh_{(s)}$
$C. N_{2(g)} + 3 H_{2(g)} \rightarrow 2 NH_{3(g)}$ $III. Fe_{(s)}$
$D. \text{Vegetable oil}(l) + H_{2} \rightarrow \text{Vegetable ghee}(s)$ $IV. Ni_{(s)}$

Choose the correct answer from the options given below.

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