Enzymes are:

1. Biochemical catalysts.

2. Protein molecules of high molecular masses.

3. Both (1) and (2)

4. None of the above.

Subtopic:  Catalyst |
 93%
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Heterogeneous catalysis is shown in:

1. \(2SO_{2}{(g)} \ + \ O_{2}{(g)} \ \xrightarrow[]{Pt(s)} \ 2SO_{3}{(g)}\)
2. \(4NH_{3}{(g)} \ + \ 3H_{2}{(g)} \ \xrightarrow[]{Fe(s)} \ 2NH_{3}{(g)}\)
3. \(Vegetable \ oil(l) \ + \ H_{2}(g) \ \xrightarrow[]{Ni(s)} \ Vegetable \ ghee(s)\)
4. All of the above

Subtopic:  Catalyst |
 85%
From NCERT
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Shape selective catalysis is:

1. Catalytic reaction depends upon the pore structure of the catalyst.
2. Catalytic reactions depend on the size of the reactant and the product molecules.
3. Both '1' and '2'
4. None of the above.
Subtopic:  Catalyst |
 91%
From NCERT
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The correct statement about heterogeneous catalysis is :

1. The catalyst and reactants are present in different phases.
2. The catalyst and reactants are present in the same phase.
3. The products and reactants are present in different phases.
4. None of the above.

Subtopic:  Catalyst |
 86%
From NCERT
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