Quiz
C2 quiz
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Perguntas do quiz (16)
1Alkali metals react with non-metals to form __________.
- ANoble gases
- BAcids
- CMacromolecules
- DHydroxides
- EIonic compounds
- FInsoluble Bases
- GHydrogen
2Ionic compounds are held together by ___________.
- AStrong ionic bonds
- BStrong intermolecular forces
- CVery strong Covalent Bonds
- DDelocalised electrons
- EStrong Electrostatic forces
3Ionic bonds dissolve in water.
- AVerdadeiro
- BFalso
4When atoms share electrons they form __________.
- AIonic bonds
- BCovalent bonds
- CStrong intermolecular forces
- DElectrostatic forces
- EMacromolecules
5Simple molecules do not conduct electricity because . . . .
- AThey have delocalised electrons.
- BThe intermolecular forces are too weak.
- CThe molecules have no overall charge.
- DThere are no layers.
- EThey are too large.
6When melted ionic compounds conduct electricity.
- AVerdadeiro
- BFalso
7What function of Nitinol makes it particularly useful in braces.
- AIt is a shape memory alloy.
- BIt is not broken down by saliva.
- CIt can be controlled by remote as to where the teeth move.
- DIt is very hard so the teeth cannot move.
8Not really a proper question just useful info in the explanation. RAM stand for Relative Molecular mass
- AVerdadeiro
- BFalso
9Gas chromatography uses ________, to help identify the substance.
- AThe speed of the substance in column
- BThe time taken to travel through the column
- CThe size of the substance
- DThe mass of the substance
- EThe number of substances
10The gas chromatography column can be linked to a(n) __________, to identify the substances leaving the column.
- AMicroscope
- BOscilloscope
- CSet of accurate scales
- DMass spectrometer
11Soluble salts can be made from:
- AHalogens
- BMetals
- CAcids
- DInsoluble bases
- EOxygen
- FAlkalis
- GWater
12Insoluble salts can be made by mixing appropriate solutions of _______ so that a(n) __________ is formed.
- AAcid(s)
- BBases(s)
- CHydroxide(s)
- DAlkali(s)
- EPrecipitate
- FGas
- GIons
- Hsodium hydroxide
13Alkalis: (tick the correct statements)
- AHave a pH lower than 7
- BTurn UI green, blue and red.
- CAre also known as insoluble bases
- DAre also known as soluble hydroxides
- EAre also known as insoluble hydroxides
- FCan come in the form metal oxides
14At the negative electrode, positively charged ions ________ electrons, this is known as _________.
- AGain
- BLose
- CCreate
- DNeutralisation
- EOxidation
- FReduction
15At the positive electrode, _________ charged ions _______ electrons, this is known as _________.
- ANegatively
- BPositively
- CGain
- DLose
- ENeither decrease nor increase electrons
- FOxidisation
- GReduction
- HNeutralisation
16In electrolysis the positive electrode is usually made of ____________
- AFrancium
- BSteel
- CCopper
- DBoron
- EIron
- FCarbon
- GCharcoal
- HPlastic
- IWood
Informações
- Descrição
- C2 quiz
- Autor
- 10jonty.bird
- Idioma
- English
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