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

Previous Post Next Post