Q.3. Match the following :
Column I Column II
1. Iron (Fe)+ Oxygen (O2, from air)+ water (H2
O) a. Baking Soda2. MgO + H2
O -- b. BLue Vitriol / CuSo4
Copper sulphate
3. Sodium Hydrogen Carbonate (NaHCO3) c. Mg (OH)2
4. Copper Sulphate Pentahydrate (Cuso4
, 5H2
o) d) Rust (Iron Oxide)
Fe2
O3
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Explanation:
question 1 goes with od rust
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