Organic Chemistry V Lowersixth Science Chemistry

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Quiz on organic reactions & petroleum.

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Organic Chemistry V Lowersixth Science Chemistry


Froggy Jumps Organic Chemistry V Lowersixth Science ChemistryVersion en ligne Quiz on organic reactions & petroleum. par YAKILI LMS 1 Which type of reaction forms alkanes from alkenes via hydrogenation? a Hydrogenation b Dehydration c Hydrolysis 2 Which equation best represents combustion of propane (C3H8) in oxygen? a C3H8 + 5 O2 -> 3 CO2 + 4 H2O b C3H8 + O2 -> CO2 + H2O c 2 C3H8 + O2 -> 3 CO2 + 4 H2O 3 What type of reaction converts alkanes to halogenoalkanes using halogens? a Hydrolysis b Halogenation c Hydration 4 Which hydrocarbon class contains C=C double bonds? a Alkynes b Alkenes c Alkanes 5 Petroleum is primarily a mixture of: a Hydrocarbons b Alcohols c Esters 6 Which distillation method separates crude oil by boiling point range? a Simple distillation b Fractional distillation c Steam distillation 7 Which process produces plastics from ethene (ethylene)? a Fermentation b Polymerization c Hydrogenation 8 Which hydrocarbon is formed by cracking heavier hydrocarbons? a Aromatics b Heavy metals c Light alkanes and alkenes 9 During fractional distillation, which fraction rises first? a Heaviest, highest boiling point b Mid-boiling range c Lightest, lowest boiling point 10 Which type of reaction adds water across a double bond? a Hydrogenation b Dehydrogenation c Hydration 11 What is the general formula for alkanes? a C_nH_2n+1 b C_nH_2n+2 c C_nH_2n 12 Which catalyst is common for catalytic cracking? a Zeolite b Nickel c Platinum 13 Which type of reaction forms alkanes from alkenes by addition of H2? a Nitration b Hydrolysis c Hydrogenation 14 Which product is common from cracking heavy hydrocarbons? a Alkenes b Amines c Alcohols 15 Which pollutant is reduced by catalytic cracking in refineries? a Sulfur compounds b Oxygen c Nitrogen gas 16 What general type of reaction is used to convert alkanes to alcohols? a Esterification b Dehydration c Hydroxylection (hydroxylation) 17 Which gas is a major component of petroleum gas ( LPG )? a Butane b Methane c Propane 18 Which hydrocarbon is aromatic? a Octane b Benzene c Cyclohexane 19 What is the main use of naphtha in refineries? a Feedstock for petrochemicals b Fuel for ships c Lubricant base 20 Which reaction shows alkenes adding HX across a double bond? a Substitution b Elimination c Electrophilic addition 21 Which hydrocarbon class is formed by removing two hydrogens from alkanes? a Alkenes b Alkanes c Aromatics 22 Petroleum distillation tops over what temperature range? a Room temperature only b Low to moderate temperatures c Very high temperatures 23 Which product is typical from alkyne hydrogenation with H2 (nickel catalyst)? a Alkanes b Alkenes c Aromatics 24 What is the main aim of petroleum refining? a Increase pH b Separate components by boiling point c Add sulfuric acid 25 Which reaction forms esters from carboxylic acids? a Hydration b Esterification c Hydrogenation 26 Which distillation factor affects hydrocarbon fractionation? a Density only b Color c Boiling point 27 Which is a major process in upgrading crude oil? a Fermentation b Condensation c Hydrocracking 28 Which equation represents alkane combustion in oxygen? a C_nH_2n+2 + (3n+1)/2 O2 -> n CO2 + (n+1) H2O b C_nH_2n + O2 -> n CO2 + n H2O c C_nH_2n-2 + O2 -> CO2 + H2O 29 Which hydrocarbon is most abundant in natural gas? a Methane b Ethane c Propane 30 What is the effect of sulfur in petroleum products? a Pollution and corrosion b Color change c Sweet flavor 31 Which reaction is used to produce alkenes from alkanes mildly? a Hydrogenation b Hydration c Dehydrogenation 32 Which compound is a typical product of cracking? a Water b Low-boiling hydrocarbons c Heavy metals 33 Which type of hydrocarbon contains triple bonds? a Alkanes b Alkynes c Aromatics 34 Which process removes sulfur from fuels? a Hydration b Hydrodesulfurization c Esterification 35 Which distillation fraction is used as petrol (gasoline)? a Bitumen b Gasoline fraction c Lubricating oil 36 Which reaction forms polymers from alkenes? a Polymerization b Hydration c Hydrogenation 37 What is a key feature of hydrocarbon combustion? a Produces N2 b Produces O2 c Produces CO2 and H2O 38 Which hydrocarbon is commonly used as a solvent? a Benzene b Pentane c Cyclohexane 39 Which process is used to convert crude oil to useful fractions? a Refining b Distillation at room temp c Fermentation 40 Which bond type is common in aromatic compounds? a Localized sigma bonds b Ionic bonds c Delocalized pi bonds 41 Which hydrocarbon is used as starting material for plastics? a Ethene b Propane c Butane 42 What is the main source of feedstock for petrochemistry? a Crude oil fractions b Natural gas only c Coal tar only 43 Which equation represents ester hydrolysis under acid? a Alcohol + CO2 -> acid b Ester -> ether + water c Ester + water -> acid + alcohol 44 What is crude oil mainly composed of? a Alcohols b Salts c Hydrocarbons 45 Which distillation fraction is richest in heavy oils? a Gas oil b Residuum c Naphtha 46 Which reaction adds halogen to benzene? a Halogenation b Hydration c Hydrogenation 47 Which product is typical from petroleum distillation? a Water b Gas, gasoline, diesel c Sugar 48 Which catalyst is common in petroleum refining? a Iron b Aluminosilicate (zeolite) c Copper 49 Which hydrocarbon property increases with carbon number? a Flammability b Reactivity c Boiling point 50 Which process adds hydrogen across multiple double bonds? a Dehydration b Hydrolysis c Hydrogenation

Organic Chemistry V Lowersixth Science Chemistry

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Organic Chemistry V Lowersixth Science ChemistryVersion en ligne

par YAKILI LMS

Which type of reaction forms alkanes from alkenes via hydrogenation?

Which equation best represents combustion of propane (C3H8) in oxygen?

What type of reaction converts alkanes to halogenoalkanes using halogens?

Which hydrocarbon class contains C=C double bonds?

Petroleum is primarily a mixture of:

Which distillation method separates crude oil by boiling point range?

Which process produces plastics from ethene (ethylene)?

Which hydrocarbon is formed by cracking heavier hydrocarbons?

During fractional distillation, which fraction rises first?

Which type of reaction adds water across a double bond?

What is the general formula for alkanes?

Which catalyst is common for catalytic cracking?

Which type of reaction forms alkanes from alkenes by addition of H2?

Which product is common from cracking heavy hydrocarbons?

Which pollutant is reduced by catalytic cracking in refineries?

What general type of reaction is used to convert alkanes to alcohols?

Which gas is a major component of petroleum gas ( LPG )?

Which hydrocarbon is aromatic?

What is the main use of naphtha in refineries?

Which reaction shows alkenes adding HX across a double bond?

Which hydrocarbon class is formed by removing two hydrogens from alkanes?

Petroleum distillation tops over what temperature range?

Which product is typical from alkyne hydrogenation with H2 (nickel catalyst)?

What is the main aim of petroleum refining?

Which reaction forms esters from carboxylic acids?

Which distillation factor affects hydrocarbon fractionation?

Which is a major process in upgrading crude oil?

Which equation represents alkane combustion in oxygen?

Which hydrocarbon is most abundant in natural gas?

What is the effect of sulfur in petroleum products?

Which reaction is used to produce alkenes from alkanes mildly?

Which compound is a typical product of cracking?

Which type of hydrocarbon contains triple bonds?

Which process removes sulfur from fuels?

Which distillation fraction is used as petrol (gasoline)?

Which reaction forms polymers from alkenes?

What is a key feature of hydrocarbon combustion?

Which hydrocarbon is commonly used as a solvent?

Which process is used to convert crude oil to useful fractions?

Which bond type is common in aromatic compounds?

Which hydrocarbon is used as starting material for plastics?

What is the main source of feedstock for petrochemistry?

Which equation represents ester hydrolysis under acid?

What is crude oil mainly composed of?

Which distillation fraction is richest in heavy oils?

Which reaction adds halogen to benzene?

Which product is typical from petroleum distillation?

Which catalyst is common in petroleum refining?

Which hydrocarbon property increases with carbon number?

Which process adds hydrogen across multiple double bonds?