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प्रश्न
Which transition metal is used as a catalyst in the manufacture of vegetable ghee?
विकल्प
Fe
Cr
Co
Ni
MCQ
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उत्तर
Ni
Explanation:
Nickel (Ni) is used as a catalyst in the hydrogenation of vegetable oils to form vegetable ghee (vanaspati ghee). In this process, unsaturated oils are converted into saturated fats using hydrogen gas in the presence of a finely divided nickel catalyst. This is a common industrial use of transition metals.
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