Question: What is the decreasing order of rate of reaction with HBR for the following benzyl alcohol and its derivatives?

What is the decreasing order of rate of reaction with HBr for the following benzyl alcohol and its derivative?

I > II > III > IV.

What is the order of decreasing reactivity with HBr?

b > a > c.

Which of the following is the benzyl alcohol?

hybridised carbon is not attached to a benzene ring. So, option (ii) and (iii) are the answers.

Is benzyl alcohol more reactive than phenol?

The reason the benzyl alcohol is less reactive than phenol has to do with the pi electrons on the oxygen. in the phenol molecule, the extra electrons can contribute to the aromatic pi system, but in benzyl alcohol they can’t because they are next to a sp3 carbon which doesn’t allow any overlap.

Which of the following statement is correct for order of reaction?

The order of a reaction is always equal to the sum of the stoichiometric coefficient of reactions in the balanced chemical requation for a reaction. The order of a reaction in the sum of the powers of molar concentration of the reactants in rate law expression.

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What is the correct order of reactivity of the following with HCl?

The order of reactivity of the hydrogen halides is HI > HBr > HCl (HF is generally unreactive).

Which is more reactive towards HBr?

-In compound (b) the oxygen atom is directly attached to the double bonded carbon atom. It will be most reactive towards HBr as the carbocation formed will be resonance stabilized. Oxygen contains 2 lone pairs.

What is the order of reactivity of 1 degree 2 degree and 3 degree alcohol with sodium metal?

From this, we conclude that the reactivity of alcohol with sodium will be primary > secondary > tertiary. Hence, the correct option is (A).

Is benzyl alcohol a solvent?

Benzyl alcohol is a colorless liquid with a mild pleasant aromatic odor. It is a useful solvent due to its polarity, low toxicity, and low vapor pressure. Benzyl alcohol has moderate solubility in water (4 g/100 mL) and is miscible in alcohols and diethyl ether.

Is benzyl an alcohol?

Benzyl Alcohol is an aromatic alcohol used in a wide variety of cosmetic formulations as a fragrance component, preservative, solvent, and viscosity-decreasing agent. Benzoic Acid is an aromatic acid used in a wide variety of cosmetics as a pH adjuster and preservative.

Are phenols more acidic than alcohols?

Phenols are stronger acids than alcohols, but they are still quite weak acids. … Phenol is more acidic than cyclohexanol and acyclic alcohols because the phenoxide ion is more stable than the alkoxide ion. In an alkoxide ion, such as the one derived from cyclohexanol, the negative charge is localized at the oxygen atom.

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What are the properties of alcohols and phenols?

Alcohols : Lower alcohols are colourless liquids at normal temperature. The higher alcohols are colourless, odourless waxy solids. Phenols : Phenols, like alcohols, are either colourless liquids or solids. But they usually turn reddish brown due to atmospheric oxidation.

Are alcohols basic or acidic?

By the Arrhenius Definition of an acid and base, alcohol is neither acidic nor basic when dissolved in water, as it neither produces H+ nor OH− In the solution. Alcohol with a pKa of around 16−19 , they are in general, slightly weaker acids than water.