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