2. Ketone $\ce{(R—CO—R^1)}$ on reduction with $\ce{LiAlH4/H3O^⊕}$ gives:
(A) Primary alcohol
(B) Secondary alcohol
(C) Alkane
(D) Alkyne
Multiple Choice
ID- 14655
BSEB, 2019 (C)
3. Aldehydes without α-hydrogen atom undergoes:
(A) Cannizzaro Reaction
(B) Aldol Condensation
(C) Perkin Reaction
(D) None of these
Multiple Choice
ID- 14656
BSEB, 2019 (C)
4. IUPAC name of $\ce{CH3—CO—CH3}$ is:
(A) Propanone
(B) Propane
(C) Propanol
(D) Propene
Multiple Choice
ID- 14657
BSEB, 2019 (C)
5. The general formula of ketone is:
(A) $\ce{R—CH2OH}$
(B) $\ce{R—CO—R^1}$
(C) $\ce{R—COOH}$
(D) None of these
Multiple Choice
ID- 14658
BSEB, 2020 (A), 2021 (A)
6. Which of the following undergo Aldol condensation?
(A) $\ce{CH3COOH}$
(B) $\ce{CH3CHO}$
(C) $\ce{C6H5CHO}$
(D) $\ce{CH3—COOCH3}$
Multiple Choice
ID- 14659
BSEB, 2020 (A)
7. Which of the following acids is found in Vinegar?
(A) $\ce{HCOOH}$
(B) $\ce{CH3COOH}$
(C) $\ce{C2H5COOH}$
(D) None of these
Multiple Choice
ID- 14660
BSEB, 2020 (A)
8. Which organic acid gives silver mirror test?
(A) $\ce{CH3COOH}$
(B) $\ce{HCOOH}$
(C) $\ce{CH3 – CH2 – COOH}$
(D) $\ce{CH3 – CH (OH) – COOH}$
Multiple Choice
ID- 14661
BSEB, 2020 (A)
9. The general formula of alkanal is:
(A) $\ce{C_nH_(_2_n_+_1_) O}$
(B) $\ce{C_nH_2_nO}$
(C) $\ce{C_nH_(_2_n_-_2_)}$
(D) $\ce{C_nH_2_nO2}$
Multiple Choice
ID- 14662
10. Which of the following reaction will give benzophenone? (i) Benzoyl chloride + Benzene + $\ce{AlCl3}$ (ii) Benzoyl chloride + Phenylmagnesium bromide (iii) Benzoyl chloride + Diphenyl cadmium
(A) (i) and (ii)
(B) (ii) and (iii)
(C) (i) and (iii)
(D) (i), (ii) and (iii)
Multiple Choice
ID- 14663
11. Propanone can be prepared from ethyne by
(A) passing a mixture of ethyne and steam over a catalyst, magnesium at 420°C
(B) passing a mixture of ethyne and ethanol over a catalyst zinc chromite
(C) passing ethyne with water in the presence of $\ce{HgSO4}$ and $\ce{H2SO4}$
(D) treating ethyne with iodine and NaOH
Multiple Choice
ID- 14664
12. The oxidation of toluene to benzaldehyde by chromyl, chloride is called:
(A) Etard reaction
(B) Reimer-Tiemann reaction
(C) Wurtz reaction
(D) Cannizzaro's reaction
Multiple Choice
ID- 14665
13. The addition of HCN to carbonyl compounds is an example of:
(A) nucleophilic addition
(B) electrophilic addition
(C) free radical addition
(D) electromeric addition
Multiple Choice
ID- 14666
14. Aldehydes other than formaldehyde react with Grignard's reagent to give addition products which on hydrolysis give:
(A) tertiary alcohols
(B) secondary alcohols
(C) primary alcohols
(D) carboxylic acids
Multiple Choice
ID- 14667
15. Which of the following will not give aldol condensation?
(A) Phenyl acetaldehyde
(B) 2-Methylpentanal
(C) Benzaldehyde
(D) 1-Phenylpropanone
Multiple Choice
ID- 14668
16. Which of the following compounds does not react with $\ce{NaHSO3}$?
(A) $\ce{HCHO}$
(B) $\ce{C6H5COCH3}$
(C) $\ce{CH3COCH3}$
(D) $\ce{CH3CHO}$
Multiple Choice
ID- 14669
17. The product of hydrolysis of ozonide of 1-butane are:
(A) ethanal only
(B) ehanal and methanal
(C) propanal and methanal
(D) methanal only
Multiple Choice
ID- 14670
BSEB, 2018 (C)
18. Which arrangement is correct regarding acidic strength?
(A) $\ce{HCOOH > CH3COOH > C6H5 – OH}$
(B) $\ce{C6H5 – OH > CH3COOH > HCOOH}$
(C) $\ce{CH3COOH > HCOOH > C6H5 – OH}$
(D) $\ce{HCOOH > V6H5 – OH > CH3COOH}$
Multiple Choice
ID- 14671
BSEB, 2017 (A)
19. Which of the following compounds will undergo Cannizzaro reaction?
(A) $\ce{CH3CHO}$
(B) $\ce{CH3COCH3}$
(C) $\ce{C6H5CHO}$
(D) $\ce{C6H5CH2CHO}$
Multiple Choice
ID- 14672
20. Benzoyl chloride on reduction with $\ce{H2/Pd-BaSO4}$ produced:
(A) benzoic acid
(B) benzyl alcohol
(C) benzoyl sulphate
(D) benzaldehyde
Multiple Choice
ID- 14673
21. What is the test to differentiate between pantan-2-one and pentan-3-one?
(A) Iodoform test
(B) Benedict's test
(C) Fehling's test
(D) Aldol condensation test
Multiple Choice
ID- 14674
22. Which of the following does not undergo Cannizzaro's reaction?
(A) Benzaldehyde
(B) 2-Methylpropanal
(C) p-Methoxbanzaldehyde
(D) 2, 2-Dimethylpropanal
Multiple Choice
ID- 14675
23. The best oxidising agent for oxidation of $\ce{CH3–CH = CH–CHO to}$$\ce{CH3–CH = CH–COOH}$ is
(A) Baeyer's reagent
(B) Tollens' reagent
(C) Schiff's reagent
(D) acidified dichromate
Multiple Choice
ID- 14676
BSEB, 2021 (A)
24. Dry distillation of calcium formate gives:
(A) $\ce{HCHO}$
(B) $\ce{HCOOH}$
(C) $\ce{CH3COOH}$
(D) $\ce{CH3CHO}$
Multiple Choice
ID- 14677
25. Hydrocarbons are formed when aldehydes and ketones are reacted with amalgamated zinc and conc. $\ce{HCl}$. The reaction is called:
(A) Cannizzaro reaction
(B) Clemmensen reduction
(C) Rosenmund reduction
(D) Wolff-Kishner reduction
Multiple Choice
ID- 14678
26. In the following sequence of reaction, the final product (Z) is: $\ce{CH ≡ CH ->[Hg^2+][H2SO4]X->[CH3MgX][H2O]}$$\ce{Y->[^{[O]}]Z}$
(A) ethanal
(B) propan-2-ol
(C) propanone
(D) propan-1-ol
Multiple Choice
ID- 14679
BSEB, 2021 (A)
27. The product of the reaction of $\ce{CH3CN->[H3O^+]}$ is:
(A) $\ce{CH3COOH}$
(B) $\ce{CH3CH2NHOH}$
(C) $\ce{CH3CONH2}$
(D) $\ce{CH3CHO}$
Multiple Choice
ID- 14680
28. Which among the following is most reactive to give nucleophilic addition?
(A) $\ce{FCH2CHO}$
(B) $\ce{CICH2CHO}$
(C) $\ce{BrCH2CHO}$
(D) $\ce{ICH2CHO}$
Multiple Choice
ID- 14681
29. Which of the following aldehydes will show Cannizzaro reaction?
(A) $\ce{HCHO}$
(B) $\ce{C6H5CHO}$
(C) $\ce{(CH3)3CCHO}$
(D) $\ce{All of these}$
Multiple Choice
ID- 14682
BSEB, 2021 (A)
30. The name of acetone in IUPAC system is:
(A) Methanal
(B) Ethanal
(C) Propanone
(D) Ethanone
Multiple Choice
ID- 14683
BSEB, 2021 (A)
31. Formaldehyde on heating with $\ce{NaOH}$ solution gives:
(A) Formic acid
(B) Acetone
(C) Methyl alcohol
(D) Ethyl formate
Multiple Choice
ID- 14684
32. Which of the following does not answer iodoform test?
(A) $\ce{n}$-Butyl alcohol
(B) sec-Butyl alcohol
(C) Acetophenone
(D) Acetaldehyde
Multiple Choice
ID- 14685
33. When propanol reacts with 2-methylpropanal inpresence of $\ce{NaOH}$, four different products are formed. The reaction is known as
(A) aldol condensation
(B) cross aldol condensation
(C) Cannizaro reaction
(D) $\ce{HVZ}$ condensation
Multiple Choice
ID- 14686
34. Which compounds is obtained when acetaldehydes are treated with dilute solution of caustic soda?
(A) Sodium acetate
(B) Resinous mass
(C) Aldol
(D) Ethyl acetate
Multiple Choice
ID- 14687
35. Which of the following compound will undergo self aldol condensation in the presence of cold dilute alkali?
(A) $\ce{CH ≡ C – CHO}$
(B) $\ce{CH2 = CHCHO}$
(C) $\ce{C6H5CHO}$
(D) $\ce{CH3CH2CHO}$
Multiple Choice
ID- 14688
BSEB, 2018 (C)
36. In which of the following reactions a new carbon-carbon bond is not formed?
(A) Wurtz reaction
(B) Aldol condensation
(C) Cannizaro's reaction
(D) Friedal-Crafts reaction
Multiple Choice
ID- 14689
37. Which of the following will not yield acetic on strong oxidation?
(A) Butanone
(B) Propanone
(C) Ethyl ethanoate
(D) Ehtanol
Multiple Choice
ID- 14690
38. Carboxylic acids dimerise due to
(A) high molecular weight
(B) coordinate bonding
(C) Intramolecular hydrogen bonding
(D) covalent bonding
Multiple Choice
ID- 14691
39. Which of the following compounds would have the smallest value for $\ce{pK_a}$?
(A) $\ce{CHF2CH2CH2COOH}$
(B) $\ce{CH3CH2CF2COOH}$
(C) $\ce{CH2FCHFCH2COOH}$
(D) $\ce{CH3CF2CH2COOH}$
Multiple Choice
ID- 14692
40. What are the correct steps to convert acetaldehyde to acetone?
(A) $\ce{CH3MgBr, H2O}$, Oxidation
(B) Oxidation, $\ce{Ca(OH)2}$, Heat
(C) Reduction, $\ce{KCN}$, Hydrolysis
(D) Oxidation, $\ce{C2H5ONa}$, Heat
Multiple Choice
ID- 14693
BSEB, 2021 (A)
41. The hybridisation of carbon in carbonyl group (–C = O) is:
(A) $\ce{sp}$
(B) $\ce{sp^2}$
(C) $\ce{sp^3}$
(D) $\ce{sp^3d}$
Multiple Choice
ID- 14701
42. What happens when a carboxylic acis is treated with lithium aluminum hydride?
(A) Aldehyde is formed
(B) Primary alcohol is formed
(C) Ketone is formed
(D) Grignard reagent is formed
Multiple Choice
ID- 14702
43. Acetic acid can be halogenated in presence of phosphorus and chlorine. Formic acid cannot be halogenated with same way because of:
(A) presence of α-H atom in formic acid
(B) presence of α-H atom in acetic acid
(C) higher acidic strength of acetic than formic acid
(D) absence of α-H atom in $\ce{CH3COOH}$
Multiple Choice
ID- 14703
44. Which of the following will not undergo $\ce{HVZ}$ reaction?
(A) Peopanoic acid
(B) Ethanoic acid
(C) 2-Methylpropanoic acid
(D) 2, 2-Dimethylpropanoic
Multiple Choice
ID- 14704
BSEB, 2018 (C)
45. Which compound does not decompose on heating?
(A) $\ce{Na2CO3}$
(B) $\ce{ZnCO3}$
(C) $\ce{Al2(CO3)3}$
(D) $\ce{CaCO3}$
Multiple Choice
ID- 14705
BSEB, 2018 (C)
46. The number of canonical structures shown by the compound $\ce{CH2 = CH – CH}$$\ce{ = CH – CHO}$ is:
(A) Zero
(B) 2
(C) 3
(D) 4
Multiple Choice
ID- 14706
BSEB, 2019 (A)
47. $\ce{IUPAC}$ name of $\ce{CH3COOH}$ is:
(A) Methanoic acid
(B) Ethanoic acid
(C) Propanoic acid
(D) Methanol
Multiple Choice
ID- 14707
48. The correct order of increasing acidic strength is ..........