AQA A-level Organic and Physical Chemistry Midterm exam Question and Answers
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Course
Organic and Physical Chemistry
Institution
Organic And Physical Chemistry
AQA A-level Organic and Physical Chemistry Midterm exam Question
and Answers
What is the general formula for an alcohol?
CnH2n+1OH
What is the difference between a primary, secondary and tertiary alcohol?
The number of R chains attached to it
What is the general formula for an aldehyde?
CnH...
AQA A-level Organic and Phys ical Chemistry Midterm exam Question and Answers What is the general formula for an alcohol? CnH2n+1OH What is the difference between a primary, secondary and tertiary alcohol? The number of R chains attached to it What is the general formula for an aldehyde? CnH2n+1CHO What is the general formula for a ketone? CnH2nO What is the general formula for a carboxylic acid? CnH2n+1COOH What is the general formula for an ester? CnH2nO2 What is the general formula for a primary amine? CnH2n+1NH2 What is the general formula for a nitrile? CnH2n+1CN What are hydrocarbons? Compounds that only contain carbon and hydrogen What are general formulas? Formulas used to represent a homologous series What is a structural formula? A structural formula shows how atoms are bonded to each carbon chain in a molecule How are side chains represented in structural formulae? In brackets What is a displayed formula? A displayed formula sh ows a 2D representation of all atoms and their bonds in an organic molecule What is a skeletal formula? A simplified structural formula with all the C -H bonds omitted What is a molecular formula? A formula showing the number and the type of each atom in a molecule What is the empirical formula? The simplest whole number ratio of atoms of each element in a compound What are the 6 steps in nomenclature? I. Identify the longest Carbon Chain ii. Id entify any side chains or functional groups iii. Number all carbon atoms in longest chain from side closest to any side chains or functional groups iv.Assign a number prefix based on the number of carbon atoms in the longest chain v. At the beginning write down the number of the carbon to which any side chain or functional group is located vi. Count the number of duplicated side chains or functional groups and adjust their prefix (di, tri, and tetra ) What is an alkyl group? A normal saturated hydrocarbon alka ne chain branching from the longest carbon chain missing a single hydrogen. - They follow the normal number prefix system - End in -yl - Have a CH3 at the end for saturation as homologous series the rest increase in increments of CH2 How do you write out an alkene?
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