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Select the test which distinguishes between the following compounds benzoic acid and phenola_solubility in NaHCO3 b_ solubility in NaOHignition test d Solubility in...

Question

Select the test which distinguishes between the following compounds benzoic acid and phenola_solubility in NaHCO3 b_ solubility in NaOHignition test d Solubility in water

Select the test which distinguishes between the following compounds benzoic acid and phenol a_ solubility in NaHCO3 b_ solubility in NaOH ignition test d Solubility in water



Answers

Which of the following reagents may be used to distinguish between phenol and benzoic acid? (a) Tollen's reagent (b) Molisch reagent (c) Neutral $\mathrm{FeCl}_{3}$ (d) Aqueous $\mathrm{NaOH}$

So here we're just gonna be looking at carb, oxalic acids, and more specifically, we're gonna be looking at properties now head the property that we're gonna be looking at a solely ability. And so the sole ability of Cobb oxalic acids in water is similar to the soldier ability of alcohol's out. The heights on Keaton's now sit with fewer than about five Karpin's do dissolve in water. However, Cobb oxalic acids with a higher molecular weight tend to be insoluble due to the larger hydrocarbon chain, as this is considered hydrophobic. So, for example, if we looked our example here of hexane, Eric or Penton are acid, which is more soluble. So we have two molecules, and now we know hex and I like acid has six carbons or his pen tonight acid house, five carbons. Now, from the reasoning that we have just discussed, pentatonic acid will be more soluble because it has less carbons, and it has a smaller hydrophobic carbon chain

Been to look. Acid has a deep rooted form that is more soluble in an angriest environment than a protein ated form of benzo kassid. The middle, like acid, is going to be more soluble in a basic solution where the deep throat nated form exists to a greater extent than the pro native form. So truthfully, it's going to be more soluble in all of these. If we a sodium hydroxide sodium carbonate increased sodium bicarbonate, however, it's likely to be most soluble, depending on concentration in a sodium hydroxide solution.

Start with bins OIC acid, which is non polar. We're told that we have 0.34 grounds her 100 mil leaders in water and water is a polar substance. We're also told that we have, uh, 10 grams of the benzo a kassid and 100 milliliters. Um, but this is 100 milliliters in benzene and benzene is non polar. So, uh, I would suggest that the Benz OIC acid would dissolve completely and would be most soluble, um, in the benzene because, like dissolves like and non polar and non polar would interact together the benzo gas, it would be insoluble in the polar water solvent. Uh, let's look at the freezing point depression, and we're solving for the freezing point depression. Vantaa factor is one sin on electrolyte non polar um freezing point depression constants. 5.12 degrees Celsius per mole. The mole ality, we're told, is one and therefore the freezing point. Depression is 5.12 degrees Celsius, which is equal to on the measured freezing point depression. Given in the question

Let's just look out some more properties off. Calm, Oxalic answered, and we're gonna be addressing soul ability again. So recall we had our rules here for our carbon chain. However, now we need to consider different properties in the molecules. So here are example is hen tain on Penton OIC acid. Now that two different molecules that both got five carbons, we can go ahead and draw about 12345 want 2345 So on 2345 Double check your carbon chains. So that is plantain there, that is number one and now, Pennington, OIC acid. Just have the carpet Cilic asset functionality. See, here and now, having this cop oxalic acid functionality will have great to interaction with Walter because you've got your hydrogen. So then that will be able to bond with an oxygen in the love her that would exist. So the car bookselling accident has greater functionality than just paint ain't alone


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