3. Aldehydes, Ketones and Carboxylic Acid

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Aldehydes, Ketones and Carboxylic acid

Q.1. Give IUPAC names of i)

OH – CH2 – CH – CHO

ii)

OH (CH3)2C = CHCOCH3 O CH2 – C – CH2 – NH3

iii) O

iv) v) Diisopropyl ketone vi) n–Butyrophenone Q.2. Write i) 4 ii) 3 iii) 3

structures of – Oxopentanal – Methoxybutanal – Methoxybutanal

Q.3. How will you prepare Butan–2–one using i) Ca – propionate ii) Butan – 2– ol iii) 2, 2 – Dichlorobutane Q.4. How is benzaldehyde prepared using i) Toluene ii) Benzene iii) Benzoyl chloride

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Q.5. What is the action of the following on acetone. i) HCN ii) NaHSO3 iii) NH3 iv) NH2OH v) phenyl hydrazine vi) NaBH4 vii) Magnesium Q.6. Give any two test to distinguish between aldehydes and ketones. Q.7. What is the action of dilute NaOH on i) Ethanal ii) propanal Q.8. Write a note on Haloform reaction. Q.9. What is the action of Conc. NaOH on i) Benzaldehyde ii) Formaldehyde Q.10. What is the action of Conc. H2SO4 and Conc. HNO3 on i) Benzaldehyde ii) Benzoic acid Q.11. Gives IUPAC names of i) β - phenyl butyric acid ii) H3C – CH = C – CH2 – COOH CH3 Q.12. Draw the structures of : i) 3 - Bromo - 4 - phenyl pentanoic acid iii) Hex-2-en-4-ynoic acid Q.13. Convert : i) Cyclohexene to Adipic acid ii) Propane nitrile to Propanoic acid iii) Phenyl magnesium bromide to Benzoic acid Alcohols, Phenols and Ethers

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Q.14. How is benzoic acid prepared using i) Benzoyl chloride ii) Ethyl benzoate iii) Benzamide Q.15. What is action of following on Ethanoic acid i) Na2CO3 ii) Na iii) PCl5 iv) Ethyl alcohol v) P2O5 vi) NH3 vii) LiAlH4 viii) Br2 in Red P. Q.16. What is the action of following compounds on Cyclohexanone in presence of dry hydrogen chloride i) Ethyl alcohol ii) Ethylene glycol Q.17. How is Butanoic acid prepared starting from i) an alcohol ii) alkyl halide iii) an alkene Q.18. Write the structure and IUPAC name of the products formed in the following conversions : NO2 OH (i) alkaline KMnO /∆ 4 +

(ii) H3O

i) CH3

ii)

HO – CH2 – CH2 – CH2 – CH2Cl K2Cr2O7/dil. H2SO4 CH3 dil. HNO3

iii) CH3

iv) Br – CH2 – CH2 – CH2 – Br

(i) aq. NaCN +

(ii) H3O /∆

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O

O H2O

C – O – O – C – CH3 v)

Q.19. Predict the products in the following reactions. COOH CH3

CH3

i)

SOCl2/CHCl3 ∆

CH3

COOH P C l5

ii)

∆

O2N

NO2

iii) CH3 – CH2 – CH = CH – CH3 – COOH H 2/Ni

iv) CH2 = CH – CH2 – COOH v)

i) Br2, P

CH3 – CH2 – CH2 – COOH

ii) aq. NH3

vi) (CH3)2 – CH – CH2 – COOH

vii) (CH3)2CH – CH2 – COOH

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i) Br2, P ii) aq. NaOH + iii) H i) Br2, P

ii) alc. NaOH + iii) H

i) LiAlH 4, ether ii) H 3O

+