Question # 1

The general representation for Grignard reagent is.

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RMgX

ReMgX

RXMg

RMgX2

Which compound is formed, when CH₃OH reach with CH₃- Mg -Br

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Ethane

Methane

Ethanol

Acetone

When CO₂is made to react with ethyl-magnesium iodide followed by acid hydrolysis, the product formed is

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Propane

Propanoic acid

Propanal

Propanol

SN₂reactions can be best carried out with

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primary alkyl halides

secondary alkyl halides

tertiary alkyl halides

All the three

Nucleophilic substitution reactions, which are completed in two steps are called as.

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SN1

SN2

E1

E2

Which one of the following will be required to form ethene from ethyl chloride.

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Alcoholic KOH

Aqueous KOH

Alkaline KMnO4

Bromine

The most reactive Alkyl halide is

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Alkyl Iodide

Alkyl Bromide

Alkyl fluoride

Alkyl Chloride

Which one of the following alcohols will be formed when ethyl magnesium bromide reacts with acetone.

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Primary alcohol

Secondary alcohol

Tertiary alcohol

Dehydrin alcohol

SN2 reactions can be best carried out with

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Primary alkyl halides

Secondary alkyl halides

Tertiary alkyl halides

All the three

In which process, alkyl halide is not produced.

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Reaction of alcohol with halogen acid

Reaction of Grignard reagent with water

Reaction of alcohol with phosphorous pentachloride

Action of alkene on halogen acid

For which mechanisms, the first step involved is the same.

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E2 and E2

E2 and SN2

SN1 and E2

E1 and SN1

For ----------------- Mechanism, the first step involved is the same

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E1 and E2

E2 and S_N2

S_N1 and S_N2

E1 and S_N1

Elimination biomolecular reactions involve.

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First order kinetics

Second order kinetics

third order kinetics

Zero order kinetics

Secondary alkyl halides are those in which halogen atom is attached with a carbon atom which is further attached to.

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One beta carbon

Two beta carbon

Three beta carbon

Four beta carbon

For which mechanisms, the first step involved is the same

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E₁and E₂

E₂and SN₂

E₁and E₂

E₁and SN₁

The reactivity order of alkyl halides for a particular alkyl group is.

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Fluoride > Chloride > Bromide > Iodide

Chloride > Bromide >Chloride > Fluoride

Iodide > Bromide > Chloride > Fluoride

Bromide > Iodide > Chloride > Fluoride

The reacts with halogen acids to form alkyl halide the process is known as.

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Halogenation

Hydrohalogenation

Hydrogenation

Dehydrohalogenation

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Chemistry Fsc Part 2 Chapter 10 Online Test MCQs With Answers

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