Teaching SUPER TET - UP Assistant Teacher Mock Test Series General Science Chemistry Organic Chemistry

जल गैस से मिथाइल ऐल्कोहल के निर्माण में प्रयुक्त उत्प्रेरक कौन-सा है?

1
ZnO + MnO2
2
Cr2O3 + MgO
3
ZnO + Cr2O3
4
CaO + CrO3
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