Which of the following statements is $NOT$ true for a catalyst?
- AIt does not change the activation energy.
- BIt provides an alternative reaction pathway with lower activation energy.
- C$A$ catalyst forms an intermediate with the reactant.
- DEnzyme catalysis is always highly specific.
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What is the role of adsorption in heterogeneous catalysis?
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View SolutionMatch the following.
List-$I$ (Reaction) List-$II$ (Catalyst) $A$. $N_{2(g)} + 3H_{2(g)} \longrightarrow 2NH_{3(g)}$ $I$. $Ni$ $B$. $2H_{2(g)} + O_{2(g)} \longrightarrow 2H_2O_{(l)}$ $II$. $Pt$ $C$. $CO_{(g)} + 3H_{2(g)} \longrightarrow CH_{4(g)} + H_2O_{(g)}$ $III$. $ZnO-Cr_2O_3$ $D$. $CO_{(g)} + 2H_{2(g)} \longrightarrow CH_3OH_{(g)}$ $IV$. $Fe$
The correct answer is:
| List-$I$ (Reaction) | List-$II$ (Catalyst) |
|---|---|
| $A$. $N_{2(g)} + 3H_{2(g)} \longrightarrow 2NH_{3(g)}$ | $I$. $Ni$ |
| $B$. $2H_{2(g)} + O_{2(g)} \longrightarrow 2H_2O_{(l)}$ | $II$. $Pt$ |
| $C$. $CO_{(g)} + 3H_{2(g)} \longrightarrow CH_{4(g)} + H_2O_{(g)}$ | $III$. $ZnO-Cr_2O_3$ |
| $D$. $CO_{(g)} + 2H_{2(g)} \longrightarrow CH_3OH_{(g)}$ | $IV$. $Fe$ |
The correct answer is:
In the case of autocatalysis,..........
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View SolutionGive information about important features of solid catalysts.
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