Dehydrohalogenation Quiz

Froggy Jumps

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Elimination basics and mechanism

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Robot Arena

India

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Dehydrohalogenation Quiz


Froggy Jumps Dehydrohalogenation QuizVersion en ligne Elimination basics and mechanism par Robot Arena 1 What is Dehydrohalogenation (Removal of HX) as shown? a Removal of HX b Addition of HX c Hydrogenation 2 Which reagents are used for dehydrohalogenation in the diagram? a H2SO4/heat b alc: KOH or NaNH2 or C2H5ONa/Δ c Pd/C hydrogenation 3 What are the products of dehydrohalogenation in this example? a Alcohol + halide b Alkanes only c (major) alkene + (minor) alkene 4 What mechanism is involved in this dehydrohalogenation? a SN2 b SN1 c E2 (bimolecular elimination) 5 What reagent is commonly used for dehalogenation of vicinal dihalides to alkenes? a Zinc b Sodium borohydride c Magnesium 6 Which group is removed during dehalogenation? a Halogen (Cl, Br, I) b Hydroxyl c Carbonyl 7 What is the typical product when a vicinal dihalide is dehalogenated with Zn? a Alcohol b Alkene c Alkane 8 In dehalogenation of a vicinal dihalide, what bond is formed between the carbon atoms? a C≡C triple bond b C-C single bond c C=C double bond 9 Which mechanism feature is common in this Zn-mediated reaction? a Single-electron transfer from Zn to C–X b Electrophilic addition to C=C c Nucleophilic substitution SN2 10 What is a typical inorganic byproduct in this reaction? a Zinc halide (ZnX2) b Hydrogen gas c Sodium chloride 11 Which solvent is commonly used with zinc for dehalogenation? a Ethanol or DMF b Water c Acetone 12 What type of substrate undergoes dehalogenation in this context? a Vicinal dihalide b Alkyne c Monohaloalkane 13 Is dehalogenation with zinc an oxidation or a reduction? a Oxidation b Reduction c Substitution 14 Example: 1,2-dibromoethane with Zn gives what alkene? a Ethene b Ethyne c Ethane

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Dehydrohalogenation Quiz

Froggy Jumps

À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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Dehydrohalogenation QuizVersion en ligne

par Robot Arena

What is Dehydrohalogenation (Removal of HX) as shown?

Which reagents are used for dehydrohalogenation in the diagram?

What are the products of dehydrohalogenation in this example?

What mechanism is involved in this dehydrohalogenation?

What reagent is commonly used for dehalogenation of vicinal dihalides to alkenes?

Which group is removed during dehalogenation?

What is the typical product when a vicinal dihalide is dehalogenated with Zn?

In dehalogenation of a vicinal dihalide, what bond is formed between the carbon atoms?

Which mechanism feature is common in this Zn-mediated reaction?

What is a typical inorganic byproduct in this reaction?

Which solvent is commonly used with zinc for dehalogenation?

What type of substrate undergoes dehalogenation in this context?

Is dehalogenation with zinc an oxidation or a reduction?

Example: 1,2-dibromoethane with Zn gives what alkene?