Copy and Edit

Gases

Description

Questions orientated around periodicity in IB Chemistry (SL = questions 1 - 26; HL= all questions)
Kylie Ariana
Quiz by Kylie Ariana, updated more than 1 year ago More Less
hanalou
Created by hanalou almost 11 years ago
Saeed Al hefaity
Copied by Saeed Al hefaity almost 8 years ago
Kylie Ariana
Copied by Kylie Ariana almost 8 years ago
2
0
0

Resource summary

Question 1

Question
Describe the electronegativity and atomic radius trend across a period
Answer
  • The electronegativity decreases across a period The atomic radius decreases across a period
  • The electronegativity increases across a period The atomic radius decreases across a period
  • The electronegativity Increases across a period The atomic radius increases across a period
  • The electronegativity decreases across a period The atomic radius increases across a period

Question 2

Question
Melting point increases across a period
Answer
  • True
  • False

Question 3

Question
non-metals have a giant molecular structure meaning a lot of energy is required to break the bonds
Answer
  • True
  • False

Question 4

Question
Which two answers correctly describe electrical conductivity
Answer
  • electrical conductivity decreases down a group when they are conductable
  • electrical conductivity - made possible by ions or electrons that are not free to move
  • electrical conductivity across a period decreases overall
  • occurs in covalent bonds

Question 5

Question
Ionic radius decreases across the period until formation of the negative ions. Afterwards there is a sudden increase followed by a steady decrease to the end. Is this true or false?
Image:
WP_000803 (image/jpg)
Answer
  • True
  • False

Question 6

Question
Why does sulphur have a higher melting point than phosphorous?
Answer
  • there are higher intermolecular forces between sulphur than phosphorous
  • there are lower intermolecular forces between sulphur than phosphorous

Question 7

Question
Which physical property increases down a group but decreases across a period
Answer
  • Ionic radius
  • Atomic radius
  • Electronegativity

Question 8

Question
Why are there no values for atomic radius for noble gases? (two answers)
Answer
  • The atomic radius doesn't affect their nuclear charge
  • Nuclei distance is difficult to measure
  • They do not generally bond to other atoms

Question 9

Question
Which is the correct order of decreasing radii for Cl, Cl+, Cl- ?
Answer
  • Cl, Cl-, Cl+
  • Cl+, Cl, Cl-
  • Cl-, Cl+, Cl
  • Cl-. Cl, Cl+

Question 10

Question
What are the chemical properties of Group 0 (Noble gases)?
Answer
  • odour, colourless, mono atomic, reactive
  • odourless, colourless, mono atomic, unreactive
  • odourless, colour, not mono atomic, unreactive
  • odour, colour, not mono atomic, reactive

Question 11

Question
What are the chemical properties of Group 1 (alkali metals)?
Answer
  • reactivity increases down group, 1 electron in outer shell, form ionic compounds, doesn't conduct electricity, very reactive, low density
  • reactivity decreases down group, 1 electron in outer shell, form ionic compounds, doesn't conduct electricity, very reactive, low density
  • reactivity increases down group, 1 electron in outer shell, form ionic compounds, conducts electricity, very reactive, low density
  • reactivity increases down group, 2 electron in outer shell, doesn't conduct electricity, very reactive, low density

Question 12

Question
Halogens reactivity increases down a group, they form ionic compounds with metals or covalently with non-metals, have 6 in the outer shell, diotomic
Answer
  • True
  • False

Question 13

Question
There is no displacement reaction in this equation because Iodine is weaker than Bromine 2KBr + I2 ----->
Answer
  • True
  • False

Question 14

Question
What are the characteristics of chlorides? (tick three)
Answer
  • Na, Mg - alkaline
  • Al - amphoteric
  • Si, P, S, Cl - alkaline
  • Si, P, S, Cl - acidic
  • Na, Mg - acidic

Question 15

Question
'Increasing charge density of the positive ion polarises the chloride ion as we move to the right hand side'. Is this true?
Answer
  • True
  • False

Question 16

Question
Here is a list describing and explaining the melting point trend across period 3. Which one is INCORRECT
Answer
  • Na -----> Al = steady increase as there is an increase in the availability of electrons in the metallic bonding
  • Si = massive increase since Si has a giant macromolecular structure
  • P = slight increase due to as have only van der Waals forces between molecules whereas the others have giant structures; P4 molecule
  • S = small increase as have only van der Waals forces between molecules whereas the others have giant structures; S8 molecule
  • P= large decrease as have only van der Waals forces between molecules whereas the others have giant structures; P4 molecule
  • Cl ---> Ar = decrease as chlorine is a much smaller molecule with weaker van der Waals forces; argon is just a single atom = very weak van der Waals forces

Question 17

Question
Which oxides are insoluble in water?
Answer
  • Na2O
  • MgO
  • Al2O3
  • SiO2
  • P4O10 (or P4O6)
  • SO3 (or SO2)
  • Cl2O7 Cl2O

Question 18

Question
Which oxides DO NOT react with HCl?
Answer
  • Na2O
  • SO3 (OR SO2)
  • Al2O3
  • P4O10 (OR P4O6)
  • SiO2
  • MgO
  • Cl2O7 Cl2O

Question 19

Question
Which ones react when NaOH is added?
Answer
  • Na2O
  • MgO
  • SiO2
  • H3PO4
  • SO2
  • HCl2O7
  • Al2O3

Question 20

Question
Oxides in period 3 are either Basic Oxide, Amphoteric Oxide or Acidic Oxide
Answer
  • True
  • False

Question 21

Question
Which ones have a good conductivity? (3 answers)
Answer
  • Na2O
  • Al2O7
  • SiO2
  • P4O10
  • MgO
  • Cl2O7

Question 22

Question
Melting point in period 3 oxides increases Na2O --> MgO and then decreases from MgO ---> Cl2O7
Answer
  • True
  • False

Question 23

Question
Which chlorides across period 3 dissolves in water?
Answer
  • NaCl
  • Al2Cl6
  • SiCl4
  • MgCl2
  • PCl3
  • PCl5
  • Cl2

Question 24

Question
Melting point increases across period 3 chlorides
Answer
  • True
  • False

Question 25

Question
NaCl and MgCl2 are both good conductors and are ionic in nature whereas the rest in period 3 are covalent in nature and don't conduct. True or false?
Answer
  • True
  • False

Question 26

Question
Which definition of 1st Ionisation Energy and Electronegativity is correct?
Answer
  • 1st Ionisation Energy = minimum energy required to remove 1 mole of gaseous electrons from 1 mole of gaseous atoms Electronegativity = ability of an atom to attract electrons in a ionic bond
  • 1st Ionisation Energy = minimum energy required to remove 1 mole of gaseous electrons from 1 mole of gaseous atoms Electronegativity = ability of an atom to attract electrons in a covalent bond

Question 27

Question
An transition element is: an element that possesses an incomplete or sub-level in one or more of its oxidation states
Answer
  • True
  • False

Question 28

Question
Tick the correct properties of transition elements
Answer
  • Variable oxidation number
  • complex ion formation
  • Catalyst properties
  • Coloured complexes

Question 29

Question
Why are Sc and Zn not considered as transitional metals?
Answer
  • Sc not transition metal as its common ion Sc³⁺ has no d electrons
  • Zinc not transition metal as contains full d sub level in all oxidation states
  • Zinc not transition metal as contains has no full d sub level in all oxidation states

Question 30

Question
What is a ligand?
Answer
  • Species that uses a lone pair of electrons to form dative covalent bonds with a non-metal ion.
  • Species that possesses an incomplete or sub-level in one or more of its oxidation states
  • Species that uses a lone pair of electrons to form dative covalent bonds with a metal ion.
  • Species which is the arrangement showing the properties of elements repeat periodically

Question 31

Question
Why are some of the complexes of the d-block elements coloured?
Answer
  • energy difference between levels corresponds to particular wavelength of light
  • because they are
  • colour produced complement to wavelength absorbed when electrons excited.
  • electron transitions (electron jumps) from one orbital to another
Show full summary Hide full summary

Want to create your own Quizzes for free with GoConqr? Learn more.

Similar

Acids and Bases
silviaod119
Elements, Compounds and Mixtures
silviaod119
Edexcel Biology chapter 1
Anna Bowring
Biology Revision - Y10 Mock
Tom Mitchell
Biology- Genes and Variation
Laura Perry
AQA Physics P1 Quiz
Bella Statham
Acids and Bases
Sarah Egan
Using GoConqr to teach science
Sarah Egan
Using GoConqr to study science
Sarah Egan
GCSE Combined Science
Derek Cumberbatch
Physics Revision
Tom Mitchell
Browse Library