Solution:
Question 12.6: Predict the products formed when cyclohexanecarbaldehyde reacts with the following reagents: (i) PhMgBr and then H3O+ (ii)Tollens’ reagent (iii) Semicarbazide and weak acid (iv)Excess ethanol and acid (v) Zinc amalgam and dilute hydrochloric acid
Solution:
Question 12.5: Draw structures of the following derivatives.
(i) The 2,4-dinitrophenylhydrazone of benzaldehyde (ii) Cyclopropanone oxime (iii) Acetaldehydedimethylacetal (iv) The semicarbazone of cyclobutanone (v) The ethylene ketal of hexan-3-one (vi) The...
Question 12.2: Name the following compounds according to IUPAC system of nomenclature:
(i) CH3CH(CH3)CH2CH2CHO (ii) CH3CH2COCH(C2H5)CH2CH2Cl (iii) CH3CH=CHCHO (iv) CH3COCH2COCH3 (v) CH3CH(CH3)CH2C(CH3)2COCH3 (vi) (CH3)3CCH2COOH (vii) OHCC6H4CHO-p Solution: (i) 4-methylpentanal (ii)...
Question 12.1: What is meant by the following terms? Give an example of the reaction in each case.
(i) Cyanohydrin (ii) Acetal (iii) Semicarbazone (iv) Aldol (v) Hemiacetal (vi) Oxime (vii) Ketal (vii) Imine (ix) 2,4-DNP-derivative (x) Schiff’s base Solution: (i)...
What do you understand by the term ” Morphology of flowering plants”?
Solution: The morphology of flowering plants is the science that deals with the structure and form of the various flowering plants in the plant kingdom. The study of these plants is termed botany...
Distinguish between:
a. Bract and Bracteole b. Pulvinus and petiole c. Pedicel and peduncle d. Spike and spadix e. Stamen and staminode f. Pollen and pollinium Solution: a. A bract is an accessory leafy organ present at...