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Which gives yellow ppt. with H2PtCl6 ?...

Which gives yellow ppt. with `H_2PtCl_6` ?

A

Ammoina

B

`CO_2`

C

`Cl_2`

D

`CO`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question "Which gives yellow ppt. with H2PtCl6?", we can follow these steps: ### Step 1: Understand the Reaction We need to identify a substance (X) that reacts with H2PtCl6 (Hexachloroplatinic acid) to form a yellow precipitate (ppt). **Hint:** Look for common reagents that form precipitates with H2PtCl6. ### Step 2: Identify Potential Candidates One common reagent that is known to react with H2PtCl6 is ammonia (NH3). **Hint:** Consider the properties of ammonia and its reactions with metal chlorides. ### Step 3: Write the Reaction Equation When H2PtCl6 reacts with ammonia, the following reaction occurs: \[ H_2PtCl_6 + 2NH_3 \rightarrow [NH_4]_2PtCl_6 \] This results in the formation of a yellow precipitate. **Hint:** Check the stoichiometry of the reaction to ensure it is balanced. ### Step 4: Conclusion From the reaction, we can conclude that ammonia (NH3) is the substance that gives a yellow precipitate when reacted with H2PtCl6. **Final Answer:** Ammonia (NH3) gives a yellow ppt. with H2PtCl6. ---
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