Test Index

NCERT Class XII Chemistry
Chapter - Surface Chemistry
Questions with Solutions

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Question : 19
Total: 35
Give four examples of heterogeneous catalysis.
Solution:  
(a) CH2= CH2(g)+H2(g)
Pt
––––––▶
 CH3−CH3(g)
(b) N2(g)+3H2(g)
Fe
––––––▶
2NH3(g)
(c) CO(g)+2 H2(g)
ZnO+ Cr2 O3
––––––––––▶
 CH3OH(l)
(d) 2SO2(g)+O2(g)
Pt
––––––▶
2SO3(g)
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