Acidity of Carboxylic Acids

Q. The correct acidity order of the following is

1. 3 > 4 > 2 > 1
2. 4 > 3 > 1 > 2
3. 3 > 2 > 1 > 4
4. 2 > 3 > 4 > 1

Q. 5.The number of moles of ferrous oxalate oxidised by one mole of kmno4 in acidic medium is a.5/3 b.3/5 c.6/5 d.1/5

Q. Which among the following is strongest nucleophile in ethanol? (1) I^- (2) PhO^- (3) C_2H_5O^- (4) Cl^-

Q. though alkaline potassium permanganate and acific potassium prtmanganate both are used as oxidants yet in the maufacture of benzoic acid from toulene we use alcholic potassium permanganate as a oxidant . why

Q. 37. Which of the following is strongest acid? H3PO4 H3PO3 H3PO2 All acids have same acidic strength

Q. When benzaldehyde is oxidised to give benzoicacid then the oxidation state of carbon of aldehydicgroup is changed from(1) +2 to +3(3) Zero to +2(2) +1 to +3(4) No change

Q. 17. Why chlorine show hydrogen bonding only in chlorohydrin and chloral hydrate?

Q. Which is most stable - Pyrole , Thiophene , Furane ? (With proper explanation)

Q. Which one is strongest acid

1. $C{H}_{2}FCOOH$
2. $C{H}_{2}ClCOOH$
3. $CHC{l}_{2}COOH$
4. $CH{F}_{2}COOH$

Q. 61 How to find number of resonating structures of compounds have functional groups bonded with benzene ring.

Q.

Give an example of the strongest acid.

Q.

Among the various inorganic acids, like, $HN{O}_3$, $HCl{O}_4$ and $H_{2}S{O}_4$, sulphuric acid is highly syrupy in nature. Explain.

Q. Which is more acidic and why? Cl-CH2-CH2-COOH, Ph-COOH, CH3-COOH

Q. While sulphur dioxide and hydrogen peroxide can actas oxidising as well as reducing agents in theirreactions, ozone and nitric acid act only as oxidants.This is because(a) in SO2 and H2O2, S and O are in their lowest oxidationstate(b) in 03 and HNO3, N and O are in their highest oxidationstateOs and HNO3, N and O are in their lowest oxidationstate(o) in(d) Both (a) and (b)

Q. prove that PH3 (phosphine) is basic in nature.

Q. how to find most stable carbocation if EWG or EDG groupps are attached to benzene ring ??

Q. Choose the correct statement regarding oxalic acid and malonic acid.

1. None of the above
2. Both oxalic and malonic acid has similar ionisation value
3. First ionisation value of malonic acid is higher than oxalic acid
4. First ionisation value of oxalic acid is higher than malonic acid

Q. A mixture of 2.3g formic acid and 4.5g oxalic acid is treated with conc. H2SO4. The evolved gaseous mixture is passed through KOH pellets. Weight (in g) of the remaining product at STP will be

Q. 32. invalid name of given compound is CH3-ch=ch-cn 1 allyl cyanide 2 crotononitrile 3 but-2-enenitrile 4 none of these

Q. The correct order of acidic strength for carboxylic acids given is:

1. Formic acid < Benzoic acid < Acetic acid
2. Formic acid < Acetic acid < Benzoic acid
3. Acetic acid < Benzoic acid < Formic acid
4. Acetic acid < Formic acid < Benzoic acid

Q. 27.Compare basic strength (A) CH3Li (B) CH3MgBr (C) CH3Na (D) NaOH (E) CH3Mg

Q. What is going to be the equivalent mass of acids when they react with substances other than bases?

Q. 14 How many sigma and pi bond in ethyl acetoacetate

Q. A regent that can form a hydrocarbon with Grignard reagent is:

1. ${\text{HCOOC}}_{\text{2}}{\text{H}}_{\text{2}}$
2. ${\text{C}}_{\text{6}}{H}_{5}N{H}_2$
3. ${\text{CH}}_{\text{3}}{\text{COCH}}_{\text{2}}$
4. ${\text{C}}_{\text{6}}{\text{H}}_{\text{5}}{\text{COC}}_{\text{6}}{\text{H}}_{\text{5}}$

Q. which of the following compounds show H bonding chcl3 ch3cl hcl ch3Och3 why do other 3 do not show h bondin

Q. 9. give reason for the following order of the acidic strength of the following - H3PO2> H3PO3> H3PO4

Q. The degree of the differential equation satisfying $\sqrt{1+x^2}+\sqrt{1+y^2}=A(x\sqrt{1+y^2}-y\sqrt{1+x^2})$

1. 2
2. 3
3. 4
4. None of these

Q. Which effects àre shown by phenyl ring(i.e only benzene)?

Q. When benzaldehyde is oxidised to give ben acid then the oxidation state of carbon of aldelhyd zoic group is changed from (1) +2 to +3 (2) +1 to +3 (3) Zero to +2 (4) No change

Q.

Choose the correct statement regarding acidic character of acetic acid, $C{H}_{3}COOH$ and peroxyacetic acid, $C{H}_{3}COOOH$

1. Peroxyacetic acid is stronger acid than acetic acid since the former has one extra oxyge, an electronegative element

2. Peroxyacetic acid is stronger than acetic acid because its conjugate base is a weaker base than acetate

3. Peroxyacetic acid is weaker than acetic acid because its conjugate base is less stable than that of acetate ion

4. Both are equally strong