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PPSC Chemistry Part II Organic Chemistry Online Test MCQs With Answers
Question # 1
Carbon and Hydrogen are estimated by
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Liebig's method
Kjeldhal's method
Carries method
None of the above
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Question # 2
In order to give strength and elasticity natural rubber is heated with.
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Sulphur
Oxygen
Nitrogen
Chlorine
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Question # 3
Which of the following is not an androgen i.e. male sex hormones.
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Androsterone
Testosterone
Oestrone
All of these are make hormone
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Question # 4
Oil of turpentine contains
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a-pinene
b- pinene
Both A and B
Name of these
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Question # 5
Biogical role of nucleic acid doe snot include
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Genetic continuity
Protein syathesis
Hybridization
Mutation
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Question # 6
Which of the following statement is not correct n respect of Arrhenius concept.
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The concept is applicable only for aqueous systems.
Neutralization takes place in aqueous mediam only
TH+ ion cannot remain as such in water
This concept is applicable for non aqueous system only.
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Question # 7
Complete hydrolysis of nucleotide result in the formation of.
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Heterocyclic bases
A pentose
A phosphate ion
All of these
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Question # 8
Glucose and fructose react with which of the following reagent to give same product.
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Tollen's reagent
Phenyl hydrazine
Hydroxyl amine
All of these
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Question # 9
Which of the following statement is not correct with respect to limitations of Hammett equation.
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It is only applicable to aromatic systems
Only applicable to aliphatic systems
It is not valid for m-substituent
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Question # 10
In the reaction RCO2Na + Na OH (CaO) ______ RH, we eliminate carboxylate group as.
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CO2
Na2CO3
-CO
CaCO3
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Question # 11
The reagent which can be used to distinguish acetophenone from benzophenone is.
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2,4 -dinito phenyl hydrazine
Li AIH4
Benedict reagetn
I2 and Na2CO3
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Question # 12
Which of the following dyes belongs to the group of acridine dyes.
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Acriflavin
Alizarin
Indigotin
Cyanine
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Question # 13
Gutta percha is
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Cis poly imprene
Trans -polyisoprene
Polyethylene
Polyisobutylene
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Question # 14
Which of the following class of compounds follow the criteria of aromatically.
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The compounds must have high degree of unsaturation
they must have the property to undergo addition reactions
They must have the property to undergo substitution reactions
They must have the ability to sustain an induced current in NMR
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Question # 15
Albumin is classified as
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Simple protein
Conjugated protein
Lipoprotein
Derived protein
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Question # 16
Indigotin is a dye obtained from indigo plant which belongs to the group of.
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Substantive dyes
Mordant dyes
Vat dyes
Disperse dyes
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Question # 17
SAN is a polymer of
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Styrene
Acrylonitrile
Both A and B
Vinyl chloride
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Question # 18
Which of the following compound will be optically active.
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Suceinic acid
Meso tartaric acid
Acetic acid
Lactic acid
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Question # 19
Which of the following pairs does not represent Lowery acid base pair.
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H2O+NH3
H2O +H2O
HCL + H2O
CH3NH2 + BF3
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Question # 20
The stationary and mobile phases in paper chromatography are.
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Liquid/Liquid
Solid /Liquid
Liquid/Solid
Gas/solid
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Question # 21
Vitamin D1 is chemically known as
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Ergocalciferol
Tocopherol
Aserphthol
Phylloquinone
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