OCR B A-Level Chemistry Elements from the Sea Quiz

Description

A-Level Chemistry Quiz on OCR B A-Level Chemistry Elements from the Sea Quiz, created by Alex Lyes on 22/05/2016.
Alex Lyes
Quiz by Alex Lyes, updated more than 1 year ago
Alex Lyes
Created by Alex Lyes about 8 years ago
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5

Resource summary

Question 1

Question
Anions go to the [blank_start]anode[blank_end].
Answer
  • anode

Question 2

Question
Cations go to the [blank_start]cathode[blank_end].
Answer
  • cathode

Question 3

Question
Electolysis is the breaking down of a substance using [blank_start]electricity[blank_end].
Answer
  • electricity

Question 4

Question
This is an example of a half equation at the anode: 2Cl- (l)  Cl2 (aq) + 2e-
Answer
  • True
  • False

Question 5

Question
What is produced at the cathode if the element is more reactive than hydrogen
Answer
  • The element itself
  • Hydrogen gas

Question 6

Question
What is the most common oxidation state of oxygen?
Answer
  • +1
  • -1
  • -2
  • +2

Question 7

Question
The oxidation state of a monatomic ion is 0.
Answer
  • True
  • False

Question 8

Question
In a redox reaction
Answer
  • Loss of electrons is called oxidation
  • Loss of electrons is called reduction

Question 9

Question
Reducing agents are oxidised and oxidising agents are reduced.
Answer
  • True
  • False

Question 10

Question
Volatility of halogens [blank_start]decreases[blank_end] down the group.
Answer
  • decreases
  • increases
  • stays the same

Question 11

Question
Halogens are more soluble in organic solvents than in water because
Answer
  • They are polar
  • They are non-polar
  • They don't contain covelant bonds

Question 12

Question
Chlorine is a [blank_start]yellow-green gas[blank_end] at RTP.
Answer
  • shiny grey liquid
  • yellow-green gas
  • red-brown liquid
  • pale yellow gas

Question 13

Question
HF and HCl are not stable when heated.
Answer
  • True
  • False

Question 14

Question
An equilibrium constant that is less than 1 lies to the [blank_start]left[blank_end].
Answer
  • left
  • right
  • middle

Question 15

Question
Increasing the pressure in an equilibrium reaction shifts the posisition of equilibrium to the side with [blank_start]fewer[blank_end] gas molecule to [blank_start]reduce[blank_end] the pressure.
Answer
  • fewer
  • reduce
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