Question

1] Rust a] soft water

2] Petrol b] carbonic acid

3] Variable valency c] inflammable

4] distilled water d] Fe+2, Fe+3

5] H2CO3 e] oxalic acid​

Answer 1

1. Fe+2,Fe+3

2. Inflammable

3. Oxalic acid

4. Soft water

5. Carbonic acid

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