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In which of the following reactions hete...

In which of the following reactions heterogenous catalyse is involved? (i) `2SO_2 (g) + O_2(g) overset (NO(g)) rarr 2SO_3(g)` (ii) `2SO_2 (g) + O_2(g) overset (Pt(s)) rarr 2SO_3(g)` (iii) `N_2(g) + 3H_2(g) overset (Fe(s)) rarr 2NH_3(g)` (iv) `CH_3COOCH_3(l) + H_2 O(l) overset (HCl(l)) rarr CH_3COOH (aq) + CH_3OH (l)`

A

(ii),(iii)

B

(ii),(iii),(iv)

C

(i),(ii),(iii)

D

(iv)

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MODERN PUBLICATION-SURFACE CHEMISTRY-EXERCISE
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  11. Atom A has a mass number 209 and atomic number 82. Atom B has a mass n...

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  12. Atom A has a mass number 209 and atomic number 82. Atom B has a mass n...

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