PPSC Chemistry Part II Organic Chemistry Online Test With Answers

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PPSC Chemistry Part II Organic Chemistry Online Test

Sr. # Questions Answers Choice
1 Sterols are steroids having the functional gruup. Ketonic Al;coholic Phenolic Aldehydic
2 An example of cyclic polyterpenoid is Myrcene Alcoholic Synthetic rubber Natural rubber
3 A terpenoid which has as alcoholic group in the molecule is. Citral Camphor Menthol Carvone
4 a-pinene hydrochloride on warming rearrangements to form bornyl chloride Pinacol pinacolone hofmann Wagner Meerwein Wolf
5 Oil of turpentine contains a-pinene b- pinene Both A and B Name of these
6 Which of the following is not a characteristics of terponoids. They are pleasant smelling liquids They are steam volatile They are nitrogenous bases They are insoluble in water
7 Enfleurage process is ued to extract the essential oils from Bark of plant Seeds of plant Leaves of plant Flowers of plant
8 An example of acyclic monotterpenoid is a -pinene Camphor Geranial Citral
9 Ingold's isoprene rule states that in tepenoids isoprene units are joined. Head to tail Head to Head Tail to Tail In a random order
10 Organic substance responsible for the smell of flowers etc. are grouped together in chemistry as. Perfumes Terpenoids Flavonoids Alkaloids
11 Identify a dye which was ot originally obtained from plant source. Alizarin Tyrian purple Indigotin Quercitrin
12 Which of the following is not a characteristic of phthalocyanine dyes. They are metal complex the are insoluble in water They have porphin nucleus They are used in photographic plates
13 Dyes used in photographic plates to make them panchromatic is. Cyanine dyes Azine dyes Phthalocyanine dyes Acridine dyes
14 Which of the following does not belong in the group of herocyclic dyes. Acridine Cyanine Methylene blue Amido black
15 Which of the following dyes belongs to the group of acridine dyes. Acriflavin Alizarin Indigotin Cyanine
16 The dye obtained from madder root Indogotin Indanthrene Alizarin Acriflavin
17 Indigotin is a dye obtained from indigo plant which belongs to the group of. Substantive dyes Mordant dyes Vat dyes Disperse dyes
18 Which of the following dye is used an antiseptic . Methyl orange Mercurochrome Alizarin Bismarck brown
19 Which of the following is an azo dye. Congo red Rhodamine B Ertythroein Paraosaniline
20 Eosin dye belongs to the group of dyes known as. Nitroso syes Triphenylmethane dyes Diphenylmethane dyes Phthalein dyes
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