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explain why the boiling points of alcohols and phenols are much higher than those of alkanes, ethers, etc., of similar molecular mass. discuss the factors that are believed to determine the acidity of alcohols and phenols.
Q-1: The general formula for alcohol is C n H 2n+1 OH. What is the value of ‘n’ for ethanol? 1. 3. 2. 5. Answer: c) 2. Explanation: ‘n’ signifies the number of carbon atoms present in the compound. The prefix “eth” stands for the number 2. This implies that ‘n’ is equal to 2 for ethanol. Q-2: When ethanol reacts with active metals, what is formed?
15 Alcohols AQA Chemistry Answers to practice questions. Question number Answer. Marks. Guidance. 1 (a) on in water or (aq) in the equati. 1. yeast or zymase. 1. Don’t just say ‘an enzyme’. e of air or neutral p. in the range 30–40 °C only. Learn these 4 points. Fermentation. 1. C6H12O6 → 2CH3CH2OH + 2CO2. 1. CH3CH2OH + 3O2 → 2CO2 + 3H2O.
10 Αυγ 2022 · Its formula can be also written as CH 3 −CH 2 −OH or C 2 H 5 OH (an ethyl group linked to a hydroxyl group), and is often abbreviated as EtOH. Ethanol is a volatile, flammable, colorless liquid with a slight characteristic odor.
Ethanol (also called ethyl alcohol, grain alcohol, drinking alcohol, or simply alcohol) is an organic compound with the chemical formula CH3CH2OH. It is an alcohol, with its formula also written as C2H5OH, C2H6O or EtOH, where Et stands for ethyl.
It examines in some detail their simple physical properties such as solubility and boiling points. Alcohols are compounds in which one or more hydrogen atoms in an alkane have been replaced by an -OH group. Alcohols fall into different classes depending on how the -OH group is positioned on the chain of carbon atoms.
Write a balanced equation for the formation of one of these products, giving its name and the condition required to achieve this product in high yield. Use [O] in the equation to represent each oxygen atom from the oxidising agent.
