Multiple Choice Practice Questions on General Organic Chemistry:
Ques. Function of the flux added during smelting is
(a) To make ore porous
(b) To remove gangue
(c) To make reduction easier
(d) To precipitate slag
Ques. Which type of isomerism is shown by propanal and propanone?
(a) Functional group
(b) Metamerism
(c) Tautomerism
(d) Chain isomerism
Ques. Which metal is extracted by electrolytic reduction method?
(a) Cu
(b) Al
(c) Fe
(d) Ag
Ques. Which of the following exhibits optical isomerism?
(a) Butanol-1
(b) Butanol-2
(c) Butene-1
(d) Butene-2
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Ques. The metal extracted by electrolysis of its fused salt is
(a) Iron
(b) Lead
(c) Sodium
(d) Copper
Ques. Heterolytic bond dissociation energy of alkyl halides follows the sequence
(a) R – F > R – Cl > R – Br > R – I
(b) R – I > R – Br > R – Cl > R – F
(c) R – I > R – F > R – Br > R – Cl
(d) R – Cl > R – Br > R – I > R – F
Ques. Which of the following ores is subjected to roasting during metallurgical operations for getting the metal oxide?
(a) Horn silver
(b) Zinc blende
(c) Malachite
(d) Limonite
Ques. The shape of carbonium is
(a) Planar
(b) Pyramidal
(c) Linear
(d) None of these
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Ques. In metallurgy, flux is a substance used to convert
(a) Infusible impurities to fusible material
(b) Soluble impurities to insoluble impurities
(c) Fusible impurities to infusible impurities
(d) Mineral into silicate
Ques. How many primary amines are possible for the formula C4H11N?
(a) 1
(b) 2
(c) 3
(d) 4
Ques. The substance which is mixed with the ore for removal of impurities is termed as
(a) Slag
(b) Gangue
(c) Flux
(d) Catalyst
Ques. On monochlorination of 2-methyl butane, the total number of chiral compounds is
(a) 2
(b) 4
(c) 6
(d) 8
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Ques. Which of the following compounds will show geometrical isomerism?
(a) 2-butene
(b) Propene
(c) 1-phenylpropene
(d) 2-methyl-2-butene
Ques. An isomer of ethanol is
(a) Methanol
(b) Dimethyl ether
(c) Diethyl ether
(d) Ethylene glycol
Ques. If the impurity in a metal has a greater affinity for oxygen and is more easily oxidised than the metal, then the purification of metal may be carried out by
(a) Poling
(b) Zone refining
(c) Electrolytic refining
(d) Cupellation
Ques. Cupellation process is used in the metallugry of
(a) Copper
(b) Silver
(c) Aluminium
(d) Iron
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Ques. Gold is extracted by hydrometallurgical process based on its property
(a) Of being electropositive
(b) Of being less reactive
(c) To form complexes which are water soluble
(d) To form salts which are water soluble
Ques. Silicon is main constituent of
(a) Alloys
(b) Rocks
(c) Animals
(d) Vegetables
Ques. Metallurgy is the process of
(a) Concentrating the ore
(b) Roasting the ore
(c) Extracting the metal from the ore
(d) Adding carbon to the ore in blast furnace