Alcohols (Unit 2.7) AS level chemistry

Descrição

AS level Chemistry Quiz sobre Alcohols (Unit 2.7) AS level chemistry , criado por jodie davies em 07-02-2021.
jodie davies
Quiz por jodie davies, atualizado more than 1 year ago
jodie davies
Criado por jodie davies quase 4 anos atrás
14
0

Resumo de Recurso

Questão 1

Questão
Which of these best describes an alcohol?
Responda
  • A homologous series where one hydrogen atom is replaced by an OH group.
  • A heterologous series where one hydrogen atom is replaced by an OH group.

Questão 2

Questão
What is the definition of 'homologous series'?
Responda
  • A group of chemicals with similar properties that can be represented by a general formula.
  • A group of chemicals that have the exact same properties and formula.

Questão 3

Questão
Which of these are characteristics of a homologous series?
Responda
  • The members of the homologous series have the same functional group
  • The members of the homologous series always contain ethene.
  • The members of the homologous series share a specific formula.
  • The members of the homologous series share a general formula.
  • The members of the homologous series have a common general method of preparation.
  • The members of the homologous group all have low melting points.
  • The members of the homologous group have similar chemical properties.

Questão 4

Questão
There are [blank_start]two[blank_end] main processes involved in the [blank_start]industrial[blank_end] preparation of ethanol. [blank_start]Hydration[blank_end] of ethene involves [blank_start]cracking[blank_end] hydrocarbons produced from [blank_start]petroleum.[blank_end] Ethene then reacts with [blank_start]steam[blank_end] to produce ethanol. Another method is called [blank_start]Fermentation[blank_end] which involves [blank_start]sugars[blank_end] being converted into ethanol.
Responda
  • two
  • industrial
  • Hydration
  • cracking
  • petroleum.
  • steam
  • Fermentation
  • sugars

Questão 5

Questão
The reaction between an alcohol and a [blank_start]carboxylic acid[blank_end] gives an [blank_start]ester[blank_end]
Responda
  • carboxylic acid
  • ester

Questão 6

Questão
The ideal conditions for hydration of ethene is a temperature of [blank_start]300[blank_end] and pressure of [blank_start]60-70[blank_end] atmospheres.
Responda
  • 300
  • 200
  • 420
  • 137
  • 60-70
  • 70-80
  • 30-40
  • 90-100

Questão 7

Questão
With regards to temperature to complete hydration of ethene, which statement is true?
Responda
  • A higher yield of ethanol would be produced at lower temperatures
  • A higher yield of ethanol would be produced at higher temperatures
  • The temperature has no effect on the yield of ethanol produced

Questão 8

Questão
[blank_start]High[blank_end] pressure leads to a high yield of ethanol.
Responda
  • High

Questão 9

Questão
Which of these is missing from the end of this formula representing hydration of ethene? CH2 = CH2(g) + H2O(g) <>
Responda
  • CH2CH2OH(g)
  • CH3CH2OH(g)
  • CH4CHOH(g)

Questão 10

Questão
Which of these better depicts the definition of a functional group?
Responda
  • specific groupings of atoms within molecules that have their own characteristic properties, regardless of the other atoms present in a molecule.
  • specific groupings of atoms within molecules that have their own characteristic properties, based of the number of carbons present

Questão 11

Questão
Which of these molecules is the functional group.
Responda
  • Chlorine

Questão 12

Questão
Label this diagram of fractional distillation. The method of which alcoholic drinks are produced (fermentation)
Responda
  • Thermometer
  • out
  • in
  • bunsen burner
  • round-bottom
  • fractionating
  • Glass beads
  • Condenser

Questão 13

Questão
The boiling temperature of ethanol is [blank_start]80[blank_end] degrees and therefore to separate it from an aqueous mixture, [blank_start]fractional distillation[blank_end] is needed.
Responda
  • 80
  • fractional distillation

Questão 14

Questão
Ideal conditions for fermentation include...
Responda
  • sugar, warm place and a yeast catalyst
  • cold place and a yeast catalyst
  • glucose, warm place and a yeast catalyst

Semelhante

Alcohols
Bee Brittain
Acids and Bases
Sarah Egan
Using GoConqr to study science
Sarah Egan
Ionic Bondic Flashcards.
anjumn10
Electrolysis
lisawinkler10
Acids and Bases
silviaod119
Elements, Compounds and Mixtures
silviaod119
Chemistry General Quiz - 2
lauren_johncock
Chemistry Quiz General -3
lauren_johncock
Chemistry Module C2: Material Choices
James McConnell
AS Chemistry - Enthalpy Changes
Sarah H-V