Teaching Rajasthan 3rd Grade REET Mains (Level I & II) Mock Test General Science Chemistry

______ जंग के लिए एक सूत्र है।

1

Fe₂ OHx H₂O

2

Fe O₂ x H₂O

3

Fe₂ O₃x H₂O

4

Fe₂ Ox H₂O

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