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When a colourless gas (A), which is pois...

When a colourless gas `(A),` which is poisonous and burns with blue flame, is passed through aqueous `NaOH` solution, gives a compound `(B)`. Compound `(B)` on heating gives `(C )`. `(C )` gives a white precipitate `(D)` with `CaCl_(2)`. Both `(C )` and `(D)` decolourises `KMnO_(4)`. Identify `(A)` to `(D)`.

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To solve the problem step by step, we need to identify the compounds A, B, C, and D based on the given clues. ### Step 1: Identify Gas (A) The question states that gas (A) is colorless, poisonous, and burns with a blue flame. **Solution:** - The gas that fits this description is **Carbon Monoxide (CO)**. It is colorless, toxic, and burns with a blue flame. ...
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