Chemistry A level
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is the mobile phase in TLC? | The solvent
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| What is the mobile phase in Gas Chromatography? | A carrier gas! Aka an inert gas
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| How does the solid stationary seperate? | Seperates by adsorption
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| How does the liquid stationary phase seperate? | Seperates by relative solubility
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| What is Retention Time? | The time taken for a component to pass through the column
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| What is Retention Factor? | Distance moved by component/Distance moved by solvent front
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| An amino acid is in acidic conditions, what happens? | It accepts a proton/Acts as a base
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| An amino acid is in alkaline conditions, what happens? | It donates a proton/Acts as an acid
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| An aldehyde is reacted with Acidified Potassium Dichromate, what is formed? | A Carboxylic Acid
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| An aldehyde is reacted with NaBH4, what is formed? | A Primary Alcohol
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| A ketone is reacted with Acidified Potassium Dichromate, what is formed? | There is no reaction, the Ketone doesn't change
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| A ketone is reacted with NaBH4, what is formed? | A Secondary Alcohol
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| When a carbonyl reacts with 2,4-DNP, what is formed? | They form a yellow/orange precipitate
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| Phenylamine reacts to convert into Benzenediazonium chloride, what are the reagents and conditions? | NaNO2 and HCl (Form Nitrous acid; HONO) below 10 degrees celcius
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| Benzenediazonium chloride is converted to an Azodye, what are the reagents and conditions? | Phenol and NaOH (Alkaline Conditions)
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| How many types of stereoisomerism are there and what are they called? | 2, Optical isomerism and Geometrical isomerism
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| What is condensation polymerisation? | The joining of 2 monomers with the elimination of a small molecule (e.g. water or HCl) to form a chain/polymer
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| What is addition polymerisation? | The joining of 2 unsaturated monomers (generally the same) to form a saturated chain/polymer
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Created by:
Peter B
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