In which of the following processes, platinum is used as a catalyst [N

1.	In which of the following processes, platinum is used as a catalyst [NCERT 1978, 79]
A.	Oxidation of ammonia to form nitric acid
B.	Hardening of oils
C.	Production of synthetic rubber
D.	Synthesis of methanol
Answer» B. Hardening of oils

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In which of the following processes, platinum is used as a catalyst [NCERT 1978, 79]

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