Concept explainers
(a)
Interpretation:
The compounds p-nitroaniline, aniline, and cyclohexylamine are to be arranged in order of increasing
Concept introduction:
(b)
Interpretation:
The compounds
Concept introduction:
Amines are the organic compounds that are formed by replacement of hydrogen from ammonia. Amines are basic in nature because the nitrogen can donate its lone pairs and also the ability of the nitrogen to accept the proton in water.
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Organic Chemistry
- Arrange the following compounds in increasing order of their property as indicated :(i) CH3COCH3, C6H5COCH3, CH3CHO(reactivity towards nucleophilic addition reaction)(ii) Cl—CH2—COOH, F—CH2—COOH, CH3—COOH (acidic character)arrow_forwardBiphenyl has the following structure.(a) Is biphenyl a (fused) polynuclear aromatic hydrocarbon?(b) How many pi electrons are there in the two aromatic rings of biphenyl? How does this number compare with that for naphthalene?(c) The heat of hydrogenation for biphenyl is about 418 kJ>mol (100 kcal>mol). Calculate theresonance energy of biphenyl.(d) Compare the resonance energy of biphenyl with that of naphthalene and with that of two benzene rings. Explain thedifference in the resonance energies of naphthalene and biphenyl.arrow_forwardIdentify which of the statements is/are correct. (i) The molecular formula of the smallest aldehyde is C3H6O, and that of the smallest ketone is also C3H6O. (j) The molecular formula of the smallest carboxylic acid is C2H4O2.arrow_forward
- Formaldehyde, H2C=O, is known to all biologists because of its usefulness as a tissue preservative. When pure, formaldehyde trimerizes to give trioxane, C3H6O3, which, surprisingly enough, has no carbonyl groups. Only one monobromo derivative (C3H5BrO3) of trioxane is possible. Propose a structure for trioxane.arrow_forwardPyrethrins, such as jasmolin II(below), are a group of naturalcompounds synthesized by flowers of the genus Chrysanthemum(known as pyrethrum flowers) to act as insecticides.(a) Circle and name the functional groups in jasmolin II.(b) What is the hybridization of the numbered carbons?(c) Which, if any, of the numbered carbons are chiral centers?arrow_forwardIn each of the following reactions, two possible organic products can be formed. Draw both organic products in each case and then circle the one formed in greatest quantity in each case. HC (a) 1) NaH, 2) acid (b) CH,CH,OH (c) CH,CH,OH NH2 (d) Oarrow_forward
- (a) Draw the structure of the following :(i) p-Methylbenzaldehyde (ii) 4-Methylpent-3-en-2-one(b) Give chemical tests to distinguish between the following pairs of compounds :(i) Benzoic acid and Ethyl benzoate, (ii) Benzaldehyde and Acetophenone.(iii) Phenol and Benzoic acid.arrow_forwardDraw Lewis structures for the following compounds, andpredict which member of each pair will form hydrogen bonds:(a) NF₃ or NH₃(b) CH₃OCH₃ or CH₃CH₂OHarrow_forwardOn prolonged storage, the compound shown below reacts to give a product of molecular formula C12H:60. What is the structure of this product? ÇI OH • C:2H10arrow_forward
- (a) (CH3)3CBr classify the compound as a methyl, primary, secondary, or tertiary halide.arrow_forward'' Which of the statements A-E is NOT correct about azidothymidine (AZT), an antiviral drug? (a) The molecule contains a sigma bond formed by the overlap of a nitrogen sp orbital with a nitrogen sp2 H3C. NH orbital (b) It contains a secondary (2°) amine (c) It contains a primary (1°) alcohol (d) The molecule contains the following functional groups: alkene, amide, ether (e) It contains one atom with a +1 formal charge and one with a -1 formal charge HOH2C N=N=Narrow_forwardConsider the following formula, which of the following BEST identifies them: (a) CH₂O (b) CH3NO (c) C₂04H₂ (a) formaldehyde (b) glycine (c) aspirin (a) methanal (b) formic acid (c) aspirin (a) methanol (b) methyl amine (c) methyl acetate (a) methanal (b) formamide (c) oxalic acid (a) methanol (b) formamide (c) oxalic acidarrow_forward