Class XII Chemistry Practical Simulation. FOR FULL VIDEO CHECK MY INSTAGRAM HANDLE @khuranasanket9

[sanketkhurana]

1. Vapour pressure of a solvent increases on adding a volatile solute because a volatile solute will lead to more vapours in the solution causing a higher pressure. On contrary, on adding a non volatile solute it decreases.

2. Chlorine is ortho and para directing even though it is electron withdrawing because chlorine withdraw electrons through inductive effect and releases electrons through resonance. “Resonance and inductive effect” in short is the reason. One can draw resonating structures to explain better.

3. Ferric Chloride when added to Phenol gives violet colouration (because of formation of iron phenol complex) and when added to benzoic acid, buff coloured ppt (ferric benzoate) is formed. We can also use Sodium carbonate test to distinguish between phenol and benzoic acid.

[Glorifiedinit_]

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[alokkumar]

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[itx_nitin]

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[sanghmitrasharma]

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[somyasingh]

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[RatnapriyaJha-zg]

Vapour pressure decrease according to Raoult's law or chlorine resonance stabilized hojata h

[ansharora]

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[d.n.p.]

today is my CHEMISTRY practical and same vapor pressure question is asked. 😂😂

[ashirt]

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[MonikaChoudhary-tfsf]

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[purvipatankar]

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[Pushpanjali_]

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[shagunchaudhary]

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[mahimabharati]

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[nishthagupta]

I had my practical today thankfully the external was chill and supportive

[priyalljainnn]

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[Shadowsnipe]

The Vapour pressure will decrease as the surface area for the evopration of the volatile solvent decreases hence less eveporation means less vapurs exert pressure therfore overall decrease in capour pressure

Also vapour pressure is the pressure exerted by the gas in equilibrium to the walls of the container

[MS-zpql]

Cl is electron widrawing but still it has+m effect due to resonance and availablity of lone pair which increases electron density at ortho and para positions in its resonating structure and hence an electrophile ptefers to attack on ortho and para positions.
Hope it helped someone 😊

[nupurdamor]

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