Chemistry MCQ (Multiple Choice Questions) - SchoolingAxis

Chemistry MCQ (Multiple Choice Questions)

 Que-  The given dissociation constant (Ka) value 1.3x10-10 is of 

a. Alcohol 

b. Acetic acid

c. Water 

d. Phenol 


Answer- Phenol


Que-  Heating phenol with Zn will yield 

a. Benzene 

b. Benzoic acid 

c. Phenoxide 

d. Cyclohexane 


Answer- Benzene


Que-  When phenol is heated with concentrated nitric acid the product is 

a. Picric acid 

b. o-nitrophenol 

c. 1 3 5 -trinitro benzene 

d. p-nitrophenol 


Answer- Picric acid


Que-  Treating phenol with formaldehyde in the presence of dilute base forms Bakelite. The process involved is 

a. oxidation 

b. elimination 

c. condensation polymerization 

d. additional polymertization 


Answer- condensation polymerization


Que-  Which compound shows hydrogen bonding? 

a. C2H6 

b. C2H5Cl 

c. CH3OCH3 

d. C2H5OH 


Answer- C2H5OH


Que-  Ethanol can be converted into ethanoic acid by 

a. Hydrogenation 

b. Hydration 

c. Oxidation 

d. Fermentation 


Answer- Oxidation


Que-  Methyl alcohol is not used 

a. As a solvent 

b. As an antifreezing agent 

c. As a substitute for petrol 

d. For denaturing of ethyl alcohol 


Answer- As a substitute for petrol


Que-  Methanol can be obtained from 

a. water gas 

b. destructive distillation of wood 

c. methane 

d. all 


Answer- all


Que-  An alcohol which can be prepared by fermentation is 

a. CH3OH 

b. C3H7OH 

c. CH3 - CH2 - OH 

d. C6H5OH 


Answer- CH3 - CH2 - OH


Que-  Absolute alcohol is obtained when rectified spirit is treated with 

a. Ca(OH)2 

b. CaCO3 

c. CaCl2 

d. CaO 


Answer- CaO


Que-  When alcohol reacts with phosphorous halides it geive 

a. alkyl halides 

b. alkyl amine 

c. alkanes 

d. alkynes 


Answer- alkyl halides


Que-  Phenol was isolated by Runge from 

a. vegetable oil 

b. coaltar 

c. wood 

d. none of these 


Answer- coaltar


Que-  Which one of the following compound does not have - OH group 

a. ethylene glycol 

b. glycerol 

c. picric acid 

d. ethyl acetate 


Answer- ethyl acetate


Que-  The hydrogenation of phenol in the presence of Ni and heat gives 

a. cyclohexane 

b. n - hexane 

c. 1 - hexanol 

d. cyclohexanol 


Answer- cyclohexanol


Que-  Ethers show functional group isomerism with 

a. aldehydes 

b. ketones 

c. alcohols 

d. carboxylic acid 


Answer- alcohols


Que-  Ethanol and methanol can be distinguished by a 

a. Iodoform test 

b. Lucas test 

c. Benedicts test 

d. Tollens test 


Answer- Iodoform test


Que-  Which one of the following alcohol has greater boiling point 

a. ethanol 

b. ethylene glaycol 

c. glycerol 

d. methanol 


Answer- glycerol


Que-  Which of the following substance produce acetaldehyde on dry distillation? 

a. (CH3COO)2Ca 

b. (HCOO)2Ca 

c. both (a) and (b) 

d. none 


Answer- both (a) and (b)


Que-  Which of the following will have the highest boiling point? 

a. methanal 

b. ethanal 

c. propanal 

d. hexanone 


Answer- hexanone


Que-  Which of the following reaction is not shown by ketones? 

a. reaction with HCN 

b. reaction with NaHSO3 

c. reaction with 2 4 dinitrophenyl hydrazine 

d. reaction with Fehling solution 


Answer- reaction with Fehling solution


Que-  The carbon atom of carbonyl group is 

a. sp hybridized 

b. sp2 hybridized 

c. cp3 hybridized 

d. dsp2 hybridized 


Answer- sp2 hybridized


Que-  Which of the following substances does not give iodoform test? 

a. acetaldehyde 

b. ethyl alcohol 

c. methyl alcohol 

d. acetone 


Answer- methyl alcohol


Que-  Formalin is _______ % solution of formaldehyde in water 

a. 10% 

b. 20% 

c. 40% 

d. 60% 


Answer- 40%


Que-  Which of the following aldehydes shows rapid reaction with sodium nitroprusside? 

a. formaldehyde 

b. accetaldehyde 

c. benzaldehyde 

d. acetone 


Answer- acetone


Que-  Acetone reacts with HCN to form a cyanohydrin. It is an example of 

a. electronphilic addition 

b. electrophilic substitution 

c. nucleophilic addition 

d. nucleophilic substitution 


Answer- nucleophilic addition


Que-  Which of the following compounds will react with Tollens reagent? 

a. CH3-CHO 

b. CH3-CH-CH3 

c. CH3-COOH 

d. CH3-CO-CH2-CH3 


Answer- CH3-CHO


Que-  Which of the following reactions may be assoclated with aldehyde and ketone? 

a. nucleophile addition 

b. polymerization 

c. oxidation 

d. all of the above 


Answer- all of the above


Que-  Cannizzaros reaction is not given by 

a. formaldehyde 

b. acetaldehyde 

c. benzaldehyde 

d. trimethyl acetaldehyde 


Answer- acetaldehyde


Que-  Which of the following reagents will  react with both aldehydes and ketones? 

a. Grignard reagent 

b. Tollens reagent 

c. Fehlings reagent 

d. Benedicts reagent 


Answer- Grignard reagent


Que-  Ketones are comparatively less reactive than aldehdye. It is due to 

a. alkyl groups are electron donating 

b. steric hindrance 

c. both (a) and (b) 

d. none 


Answer- both (a) and (b)


Que-  Which of the following do not give aldol condensation reactions? 

a. formaldehyde 

b. acetaldehyde 

c. diemthyl ketone 

d. propionaldehyde 


Answer- formaldehyde


Que-  Which of the following is not a use of formaldehyde? 

a. in silvery mirror 

b. in making medicine urotropine 

c. in making throat lozenges 

d. in making acetic acid 


Answer- in making acetic acid


Que-  Formaldehyde and lactose are combined to produce throat lozenges named as 

a. formamint 

b. lactomint 

c. aldomint 

d. formalactose 


Answer- formamint


Que-  Which of the following is not a use of acetaldehyde? 

a. formation of phenolic resins 

b. formation of mirror 

c. antiseptic inhalant 

d. formation of throat lozenges 


Answer- formation of throat lozenges


Que-  Formula of haloform is 

a. HCOX 

b. CX4 

c. CHX3 

d. CH3X 


Answer- CHX3


Que-  Formaldehyde condenses with phenol in the presence of dilute H2SO4 to yield 

a. Nylon 66 

b. urotropine 

c. Aniline formaldehyde plastic 

d. Bakelite 


Answer- Bakelite


Que-  Formalin consists of mixture of formaldehyde methyl alcohol and water.  Percentage of water in it is 

a. 60% 

b. 50% 

c. 52% 

d. 8% 


Answer- 52%


Que-  Which of the following will not give addition reaction with NaHSO3 

a. HCHO 

b. CH3CHO 

c. CH3-CH2-CHO 

d. None of the above 


Answer- CH3-CH2-CHO


Que-  On heating aldehydes with Fehlings solution we get a precipitate whose colour is 

a. pink 

b. black 

c. yellow 

d. brick red 


Answer- brick red


Que-  Which of the following compounds has the empirical formula CH2O and reacts with sodium hydroxide? 

a. carbonic acid 

b. ethanol 

c. acetic acid 

d. methanoic acid 


Answer- acetic acid


Que-  Aldehyde and ketone have same general formula for homologous series 

a. CnH2nO2n 

b. CnH2n 

c. CnH2nO 

d. CnH2nOn+1 


Answer- CnH2nO


Que-  Oxidation of primary alcohol gives 

a. ketone 

b. Aldehyde 

c. Alkene then - COOH 

d. Ester 


Answer- Aldehyde


Que-  Ethanal is prepared industrially by air oxidation of ethylene using palladium chloride as catalyst and _____ as promoter 

a. PdCl2 

b. Cu2Cl2 

c. CuCl2 

d. PbCl2 


Answer- CuCl2


Que-  Ncleophilic addition reactions are catalysed 

a. Acid 

b. Base 

c. Both a and b 

d. None 


Answer- Both a and b


Que-  Acetaldehyele cyanohydrin on acid hydrolysis yields 

a. Tartaric acid 

b. Propanoic acid 

c. Lactic acid 

d. Valeric acid 


Answer- Lactic acid


Que-  Acetal on acid hydrolysis generates 

a. Alcohol 

b. Ketone 

c. Both a & b 

d. None of the above 


Answer- Both a & b


Que-  Which one exhibits aldol condensation 

a. HCHO 

b. C6H5CHO 

c. Cl3CCHO 

d. CH3COCH3 


Answer- CH3COCH3


Que-  Tetrahydroborate ion is the source of 

a. proton 

b. H+ 

c. both a & b 

d. H- 


Answer- H-


Que-  Which of the following is a symmetrical ketone 

a. 3 - hexanone 

b. acetone 

c. butanone 

d. 2-pentanone 


Answer- acetone


Que-  Dry distillation of calcium acetate results in the formation of 

a. formaldehyde 

b. acetaldehyde 

c. methane 

d. acetone 


Answer- acetone


Que-  In base catalyzed reaction of carbonyl compound the catalyst 

a. increases the nucleophilic character of reagent 

b. increases electrophilic character of carbonyl compound 

c. acidic character of reagent 

d. both a and b 


Answer- increases the nucleophilic character of reagent


Que-  Cannizaros reaction takes place through the transfer of _______ from complex anion. 

a. hydrogen ion 

b. hydride ion 

c. oxide ion 

d. methoxide ion 


Answer- hydride ion


Que-  Iodoform test can be used to distinguish between 

a. ethanol and methanol 

b. acetaldehyde and methanal 

c. acetone and diethyl ketone 

d. all of the above 


Answer- all of the above


Que-  When - COOH is attached directly to the benzene ring the acid is called 

a. Aliphatic 

b. Alicyclic 

c. Carboxylic 

d. Aromatic 


Answer- Aromatic


Que-  The common name of propane 1 3-dioic is 

a. Oxalic acid 

b. Aromatic acid 

c. Malonic acid 

d. Fumaric acid 


Answer- Malonic acid


Que-  The common thing in phthalic acid and oxalic acid is that both are 

a. Aromatic 

b. Dicarboxylic 

c. Hydrocarbons 

d. Strong acids 


Answer- Dicarboxylic


Que-  The irritation caused by red ants bite is due to 

a. Lactic acid 

b. Formic acid 

c. Uric acid 

d. Acetic acid 


Answer- Formic acid


Que-  The acid which is used as ink remover is 

a. Oxalic acid 

b. Succinic acid 

c. Adipic acid 

d. Acetic acid 


Answer- Oxalic acid


Que-  Which of the following is the strongest acid? 

a. Water 

b. Formic acid 

c. Acetic acid 

d. Propanoic acid 


Answer- Formic acid


Que-  Which acid is the manufacture of synthetic rubber? 

a. Acetic acid 

b. Formic acid 

c. Carbonic acid 

d. Benzoic acid 


Answer- Acetic acid


Que-  Acidic amino acids have 

a. 2 amino groups and 1 carboxylic group 

b. 1 amino and 1 carboxylic groups 

c. 2 carboxylic groups and 1 amino group 

d. 2 amino and 2 carboxylic groups 


Answer- 2 carboxylic groups and 1 amino group


Que-  In the formation of Zwitter ions proton goes from 

a. Carboxyl to amino group 

b. Amino to carboxyl group 

c. Amino group only 

d. Carboxyl group only 


Answer- Carboxyl to amino group


Que-  The term internal salt refers to 

a. Acidic character of amino acids 

b. Basic character of amino acids 

c. Dipolar character of amino acids 

d. Non-polar structure of amino acids 


Answer- Dipolar character of amino acids


Que-  The organic acid that does not has COOH group is 

a. phthalic acid 

b. carbolic acid 

c. Maleic acid 

d. Succinic acid 


Answer- carbolic acid


Que-  Which one of the following acids is present in lemon juice? 

a. Citric acid 

b. Benzoic acid 

c. Tartaric acid 

d. Oxalic acid 


Answer- Citric acid


Que-  The test which is used for the identification of amino-acids is 

a. Ninhydrin test 

b. Molisch test 

c. Biuretic test 

d. Benedict test 


Answer- Ninhydrin test


Que-  Which one of following amino acid is neither acidic nor a basic in nature? 

a. Lysine 

b. Histidine 

c. Proline 

d. Glutamic acid 


Answer- Proline


Que-  Carboxylic acid reacts with ammonia to form ammonium salts which on heating produces 

a. CO2 

b. Alkane 

c. Ester 

d. Acidamide 


Answer- Acidamide


Que-  Glycine is the name of an amino acid because 

a. Sweet taste 

b. Bitter taste 

c. Shining appearance 

d. Green colour 


Answer- Sweet taste


Que-  The complete reduction carboxylic acid results in the formation of 

a. Alkyne 

b. Alkene 

c. Alkane 

d. Alcohol 


Answer- Alkane


Que-  The organic acid that can be made from ethanol is 

a. Acetic acid 

b. Formic acid 

c. Butanoic acid 

d. Citric acid 


Answer- Acetic acid


Que-  Picric acid is 

a. monocarboxylc acid 

b. dicarboxylic acid 

c. aromatic carboxylic acid 

d. none of these 


Answer- none of these


Que-  The formula of palmitic acid 

a. C15H31COOH 

b. C13H27COOH 

c. C17H33COOH 

d. C17H35COOH 


Answer- C15H31COOH


Que-  Essential amino acids are 

a. 5 

b. 10 

c. 15 

d. 20 


Answer- 10


Que-  The aliphatic monocarboxylic acids are obtained by the hydrolysis of 

a. proteins and oild 

b. fats and proteins 

c. fats and oils 

d. all above 


Answer- fats and oils


Que-  Which of the following is not a fatty acid? 

a. Propanoic acid 

b. Acetic acid 

c. Phthalic acid 

d. Butanoic acid 


Answer- Phthalic acid


Que-  An acid with unpleasant smell 

a. formic acid 

b. acetic acid 

c. propionic acid 

d. butyric acid 


Answer- butyric acid


Que-  The basic hydrolysis of ethyl acetate produces 

a. ethanol 

b. acetic acid 

c. ethanol and acetic acid 

d. ethanol and sodium acetate 


Answer- ethanol and sodium acetate


Que-  Carboxylic acid on reduction with HI / phosphorous yields 

a. alkane 

b. alcohols 

c. aldehydes 

d. ketones 


Answer- alkane


Que-  Which of the following is not an ester 

a. amyl acetate 

b. sodium butyrate 

c. isobutyle formate 

d. octyl acetate 


Answer- sodium butyrate


Que-  The reaction of carboxylic acids with alcohols in presence of cone. H2SO4 is called 

a. esterification 

b. neutralization 

c. hydrolysis 

d. saponification 


Answer- esterification


Que-  Which of the following has orange flavour 

a. isobutyl formate 

b. octyl acetate 

c. ethyl butyrate 

d. amyl lactate 


Answer- octyl acetate


Que-  Which of the following is not an amino acids 

a. glumatic acid 

b. lactic acid 

c. aspartic acids 

d. glycine 


Answer- lactic acid


Que-  Amino acids present in cheese 

a. lysine 

b. alanine 

c. tyrosine 

d. proline 


Answer- tyrosine


Que-  Which of the following is an unsaturated carboxylic acid 

a. malonic acid 

b. oxalic acid 

c. succinic acid 

d. maleic acid 


Answer- maleic acid


Que-  Polymers described as large molecules built up from small repeating units called 

a. Biopolymers 

b. Dimers 

c. Monomers 

d. metamers 


Answer- Monomers


Que-  A polymer in which three different monomers combine called. 

a. Copolymer 

b. Terpolymer 

c. Homopolymer 

d. Biopolymer 


Answer- Terpolymer


Que-  The important monomers of acryclic resins is 

a. Vinyl chloride 

b. Styrene 

c. Methylmethacrylate 

d. Hexamethylenediamine 


Answer- Methylmethacrylate


Que-  Polyester resins are the product of the reaction of 

a. Dihydric alcohol and dicarboxylic aromatic acids 

b. Polyamines with aliphatic dicarboxylic acids 

c. Styrene in the presence of catalyst 

d. Epichlorohydrin with diphenylol propane 


Answer- Dihydric alcohol and dicarboxylic aromatic acids


Que-  Industrial materials and thermal power stations are coated with 

a. Polyester resins 

b. Epoxy paints 

c. Polyamide resins 

d. Polyvinyl chloride 


Answer- Epoxy paints


Que-  Carbohydrates are polyhydroxy compounds of 

a. Glucose 

b. Glyceraldehydes 

c. Oligosaccharides 

d. Aldehydes and ketones 


Answer- Aldehydes and ketones


Que-  Common example of carbohydrates are 

a. Cellulose glycogen galactose 

b. Glyceraldehydes glucose peptone 

c. Glycerol phospho lipids collagen 

d. Legumin amylopectin albumin 


Answer- Cellulose glycogen galactose


Que-  Nylon is obtained by heating 

a. Acrylic acid 

b. Epichlorohydrin 

c. Vinyl chloride 

d. Adipic acid with hexamethylene diamine 


Answer- Adipic acid with hexamethylene diamine


Que-  Hydrolysis of an oligosaccharide in the presence of acid yields 

a. one monosaccharide unit 

b. No monosaccharide unit 

c. 2-9 monosaccharide unit 

d. many monosaccharide 


Answer- 2-9 monosaccharide unit


Que-  Amylose is 

a. Soluble in water 

b. Insoluble in water 

c. Soluble in alcohol 

d. Partially soluble in  alcohol 


Answer- Soluble in water


Que-  The process of polymerization was classified by 

a. Strecker 

b. Sabatier 

c. Runge 

d. W. H. Carothers 


Answer- W. H. Carothers


Que-  All proteins yield ______ upon complete hydrolysis. 

a. Nitrogen 

b. Amino acids 

c. Carbon and hydrogen 

d. Sulphur 


Answer- Amino acids


Que-  Protein attached to some non protein group is called 

a. Derived protein 

b. Sample protein 

c. Proteoses 

d. Conjugated protein 


Answer- Conjugated protein


Que-  Regular coiling or zigzagging of polypeptide through hydrogen bonding is its. 

a. Quantum structure 

b. Secondary structure 

c. Tertiary structure 

d. Primary structure 


Answer- Secondary structure


Que-  Orgosterol is 

a. Orgocalciferol 

b. Vitamin D2 

c. Sterol 

d. all of the above 


Answer- Sterol

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