Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Surface Chemistry

Catalyst used in hydrogenation of Vegetable oil into Vanaspati ghee is:

1

Ni

2

Fe

3

Cu

4

More than one of the above

5

None of the above

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