Description : Acetamide on reduction with LiAlH4 gives (a) Acetaldehyde (b) Ethylamine (c) Acetone (d) Methylamine
Last Answer : Ethylamine
Description : Which of the following compounds does not react with acetyl chloride? (a) Methylamine (b) Dimethylamine (c) Aniline (d) Trimethylamine
Last Answer : Trimethylamine
Description : Which of the following is most basic? (a) Ammonia (b) Methylamine (c) Dimethylamine (d) Trimethylamine
Last Answer : Dimethylamine
Description : Which amine is NOT soluble in water? (a) Methylamine (b) Dimethylamine (c) Trimethylamine (d) All are water-soluble
Last Answer : All are water-soluble
Description : Which of the following is least soluble in water? (a) Methylamine (b) Trimethylamine (c) Dimethylamine (d) Aniline
Last Answer : Methylamine
Description : A compound undergoes reduction with LiAlH4. It also dissolves in aqueous NaOH from which it can be recovered by addition of HCl. The compound is (a) a carboxylic acid (b) an ester (c) an acid anhydride (d) an alcohol
Last Answer : a carboxylic acid
Description : Acetic acid undergoes reduction with LiAlH4 to give (a) Ethanol (b) Ethane (c) Ethanal (d) Ethyne
Last Answer : Ethanol
Description : Which of the following reagents will react with acetamide to form methylamine? (a) LiAlH4 (b) Br2/NaOH (c) PCl5 (d) H2/Ni
Last Answer : Br2/NaOH
Description : Acetamide reacts with Br2/NaOH to give (a) Methylamine (b) Urea (c) Ethylamine (d) Acetyl bromide
Description : Which of the following will have the highest boiling point? (a) Methylamine (b) Diethylamine (c) Ethylamine (d) Triethylamine
Last Answer : Triethylamine
Description : Acetamide can be converted into methylamine by (a) P2O5 (b) Br2/NaOH (c) PCl5 (d) LiAlH4
Description : Acetamide on heating with P2O5 gives : (a) Methylamine (b) Ethylamine (c) Methyl cyanide (d) None of these
Last Answer : Methyl cyanide
Description : Which of the following statements is false about primary amines? (a) They can be prepared by reduction of nitriles with LiAlH4. (b) They do not form salts with acids (c) They react with ice-cold nitrous acid to form nitrogen gas. (d) They are basic and soluble in water
Last Answer : They do not form salts with acids
Description : Which of the following statements is false about benzylamine? (a) can be prepared by reduction of benzonitrile with LiAlH4. (b) cannot be prepared by reduction of benzamide with LiAlH4. (c) reacts with nitrous acid to give benzyl alcohol. (d) reacts with KMnO4 to give benzoic acid.
Last Answer : cannot be prepared by reduction of benzamide with LiAlH
Description : . The reduction of cyclohexanone with LiAlH4 (or NaBH4) will give (a) an alcohol (b) an organic acid (c) an aldehyde (d) a hemiketal
Last Answer : an alcohol
Description : On reduction with LiAlH4, which of the following compounds could yield an optically active compound? (a) Propanal (b) Propanone (c) Butanal (d) Butanone
Last Answer : Butanone
Description : Pyridine is less basic than trimethylamine because the lone-pair of electrons on N-atom in pyridine resides in (a) sp2 hybrid orbital (b) sp hybrid orbital (c) sp3 hybrid orbital (d) p-orbital
Last Answer : sp2 hybrid orbita
Description : Acetone undergoes reduction with zinc amalgam in HCl to form propane. This reaction is known as (a) Clemmensen reduction (b) Wolf-Kishner reduction (c) Rosenmund reduction (d) Aldol condensation
Last Answer : Clemmensen reduction
Description : Acetone undergoes reduction with hydrazine in the presence of NaOH to form propane. This reaction is known as (a) Clemmensen reduction (b) Wolf-Kishner reduction (c) Rosenmund reduction (d) Reformatsky reaction
Last Answer : Wolf-Kishner reduction
Description : Naphthalene undergoes reduction with H2 in the presence of Ni catalyst at high temperature and pressure to give (a) Phthalic acid (b) Decalin (c) Benzoic acid (d) Tetralin
Last Answer : Decalin
Description : Nitrobenzene undergoes reduction with zinc and KOH to give (a) Aniline (b) Hydrazobenzene (c) Azobenzene (d) None of these
Last Answer : Hydrazobenzene
Description : When an aldehyde is heated with Fehling's solution, the aldehyde undergoes one of the following processes. Does it undergo: w) neutralization x) oxidation y) reduction z) esterification
Last Answer : ANSWER: X -- OXIDATION
Description : Which of the following amines react with nitrous acid to form nitrosoamine? (a) Ethylamine (b) Triethylamine (c) Diethylamine (d) Isopropylamine
Last Answer : Diethylamine
Description : Glycine reacts with nitrous acid to form : (a) Glycollic acid (b) Diketopiperazine (c) Methylamine (d) Ethyl alcoho
Last Answer : Glycollic acid
Description : Methylamine reacts with nitrous acid to form (a) CH3CH3 (b) CH3OH (c) CH3NO2 (d) CH3CH2OH
Last Answer : CH3OH
Description : Which formulation of 2,4-D has fastest ab sorption by crop plants? a). Ethyl ester b). Dimethylamine c). Na salt d). All
Last Answer : a). Ethyl ester
Description : Which of the following is the strongest base in aqueous solution? (1) Diethylamine (2) Triethylamine (3) Ammonia (4) Ethylamine
Last Answer : (1) Diethylamine Explanation: Amines are organic derivatives of ammonia, in which one, two, or all three of the hydrogens of ammonia are replaced by organic groups. All aliphatic primary amines are stronger bases than ammonia.
Description : Which of the following reagents is used to prepare benzenediazonium chloride from aniline? (a) NaNO2 + HCl (b) LiAlH4 (c) NH2NH2 + KOH (d) NaOH
Last Answer : NaNO2 + HCl
Description : Propionamide on heating with a mixture of bromine and sodium hydroxide gives (a) Propane (b) Propylamine (c) Propanol (d) Ethylamine
Description : Which of the following compounds on treatment with NaHCO3 will liberate CO2? (a) Acetic acid (b) Ethylamine (c) Acetone (d) Ethyl alcohol
Last Answer : Acetic acid
Description : Which of the following reagents can be used to reduce acetaldehyde to ethyl alcohol? (a) 1. LiAlH4 / 2. H3O+ (b) 1. NaBH4 / 2. H3O+ (c) H2/Pt (d) All of these
Last Answer : All of these
Description : Ethylene oxide reacts with ammonia to give (a) 1-Aminoethanol (b) Ethylamine (c) 2-Aminoethanol (d) Acetamide
Last Answer : 2-Aminoethanol
Description : Isopropyl alcohol can be converted to acetone by treatment with (a) HCl/ZnCl2 (b) Na2Cr2O7/H2SO4 (c) NaOH (d) LiAlH4
Last Answer : Na2Cr2O7/H2SO4
Description : Lindlar's catalyst is (a) LiAlH4 (b) Pd/BaSO4 in Quinoline (c) NH2NH2 (d) HCl/ZnCl
Last Answer : Pd/BaSO4 in Quinoline
Description : Which of the following reagents will react with propene? (a) Hot alkaline KMnO4 (b) Sodium metal (c) Cold dilute HNO3 (d) LiAlH4
Last Answer : Hot alkaline KMnO4
Description : Which of the following is the strongest base in aqueous solution ? (1) Diethylamine (2) Triethylamine (3) Ammonia (4) Ethylamine
Description : Phenol is (a) stronger acid than acetic acid (b) weaker acid than acetic acid (c) stronger base than methylamine (d) weaker base than methylamine
Last Answer : weaker acid than acetic acid
Description : The compound methylamine, H3C–NH2, contains a C–N bond. In this bond, which of the following best describes the charge on the nitrogen atom? (a) slightly positive (b) uncharged (c) slightly negative (d) –1
Last Answer : slightly negative
Description : The nitrogen atom in the following cyclic compounds can be removed as trimethylamine by successive Hoffmann eliminations (involving exhaustive methyla
Last Answer : The nitrogen atom in the following cyclic compounds can be removed as trimethylamine by successive Hoffmann eliminations ... is : A. B. C. D.
Description : Newly synthesized tRNA undergoes posttranscriptional modifications which include all the following except (A) Reduction in size (B) Methylation of some bases (C) Formation of pseudouridine (D) Addition of C-C-A terminus at 5’ end
Last Answer : Answer : D
Description : If the body undergoes alkalosis the respiratory center located in the medulla gets the information and induces the lowering of the respiratory frequency. The reduction of the respiratory frequency makes ... of bicarbonate towards the production of more hydrogen ions and thus the blood pH lowers.
Last Answer : What is the difference between respiratory acidosis and metabolic acidosis and what is the difference between respiratory alkalosis and metabolic alkalosis?
Description : Which of the following is a selective H1 receptor agoinist ? (a) 4-methyl histamine (b) Impromidine (c) 2-Thiazolyl ethylamine (d) Mepyramine
Last Answer : Ans: C
Description : â-Aminoethylimidazole is? (a) 2-methyl histamine (b) Histamine (c) 2-pyridyl ethylamine (d) 4-methyl histamine
Last Answer : Ans: B
Description : Which of the following is a selective H1 receptor agonist: A. 4-methyl histamine B. Impromidine C. 2-Thiazolyl ethylamine D. Chlorpheniramine
Last Answer : C. 2-Thiazolyl ethylamine
Description : Acetamide is treated separately with the following reagens. Which one of these given methylamine?
Last Answer : Acetamide is treated separately with the following reagens. Which one of these given methylamine? A. `PCI_(5)` ... ` D. Hot concentrated `H_(2)SO_(4)`
Description : Pyridine undergoes nuclophilic substitution with NaNH2 at 100°C to form (a) 2-Aminopyridine (b) 3-Aminopyridine (c) 4-Aminopyridine (d) None of these
Last Answer : 2-Aminopyridine
Description : Naphthalene undergoes oxidation with Na2Cr2O7 / H2SO4 to form (a) Phthalic acid (b) Phenylacetic acid (c) Tetralin (d) Benzoic acid
Last Answer : Phthalic acid
Description : Ethyl acetoacetate undergoes acid-hydrolysis with dilute HCl to form (a) Acetoacetic acid (b) Succinic acid (c) Acetic acid (d) Adipic acid
Last Answer : Acetoacetic acid
Description : Which of the following statements is False about acetamide? (a) reacts with Br2/NaOH to form tertiary amine (b) undergoes acid-hydrolysis to form acetic acid (c) undergoes dehydration with P2O5 to form a nitrile (d) is a white crystalline solid, soluble in water
Last Answer : reacts with Br2/NaOH to form tertiary amine