Verified Solution • 2025–26 Session
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QAIPMT-2005-Ch-2483: NEET 2005 Chemistry - Class 11 AIPMT-2005-Ch-2483 Solution: \(H_2S\) gas when passed through a solution of cations…
gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is because presence of HCl decreases the sulphide ion concentration solubility product of group II sulphides is more than that of group IV sulphates presence of HCl increases the sulphide ion concentration sulphides of group IV cations are unstable in HCl.
Multiple Choice Options
- A BF 3
- B NH 3
- C PCl 3
- D IF 3
Step-by-Step Verified Solution
IF 3 has three bond pairs and two lone pairs, thus, it has sp 3 d hybridization.
PCl 3 has three bond pairs and one lone pair thus, it has sp 3 hybridization.
NH 3 has three bond pairs and one lone pair thus, it has sp 3 hybridisation.
BF 3 has three bond pairs and no lone pair thus, it has sp 2 hybridisation.