Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry

In the industrial production of Dalda ghee, the process involved is-

1

Oxidation

2

Ionisation

3

Hydrogenation

4

More than one of the above

5

None of the above

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