Reactivity series of metals

Descripción

Unit 2 Chemistry
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Resumen del Recurso

Pregunta 1

Pregunta
The most reactive metals belong to group 2.
Respuesta
  • True
  • False

Pregunta 2

Pregunta
What are the observations of potassium?
Respuesta
  • Effervescence
  • Metal floats and moves on surface of water
  • Ignites with lilac flame
  • Melts into silvery ball
  • Turns red
  • Turns colourless
  • Produces oxygen

Pregunta 3

Pregunta
What is the word equation for Sodium?
Respuesta
  • Sodium + water --> Sodium Oxide + Hydrogen
  • Sodium + water --> Sodium Oxide + Carbon Dioxide
  • Sodium + water --> Sodium Hydroxide + Hydrogen

Pregunta 4

Pregunta
Name the gas produced when group 1 metals react with water.
Respuesta
  • Hydrogen
  • Carbon Dioxide
  • Oxygen

Pregunta 5

Pregunta
The reactivity of group 1 metals decreases going down the group.
Respuesta
  • True
  • False

Pregunta 6

Pregunta
Metal + steam --> Metal ? + ?
Respuesta
  • Hydroxide + Hydrogen
  • Oxide + Hydrogen
  • Oxide + Carbon dioxide + Hydrogen

Pregunta 7

Pregunta
Metal + Oxygen --> Metal Oxide
Respuesta
  • True
  • False

Pregunta 8

Pregunta
In a displacement reaction, a ? reactive metal will displace a ? reactive metal from a solution of its salt.
Respuesta
  • more, less
  • less, more
  • -, equally reactive

Pregunta 9

Pregunta
What are the observations of Zinc + Copper (II) Sulfate --> Zinc Sulfate + Copper?
Respuesta
  • Blue solution turns colourless
  • Colourless solution turns blue
  • Red-brown solid forms
  • Bluish solid forms
  • Silver zinc metal disappears
  • Copper disappears

Pregunta 10

Pregunta
Which of these metals would be extracted by electrolysis?
Respuesta
  • Potassium
  • Sodium
  • Magnesium
  • Silver
  • Zinc
  • Copper
  • Iron
  • Aluminium

Pregunta 11

Pregunta
Apart from haematite, what other materials are used in the extraction of Iron in the blast surface?
Respuesta
  • Limestone
  • Coke
  • Hot air
  • Water
  • Hydrogen
  • Nitrogen

Pregunta 12

Pregunta
Apart from haematite, what other materials are used in the extraction of Iron in the blast surface?
Respuesta
  • Limestone
  • Coke
  • Hot air
  • Water
  • Hydrogen
  • Nitrogen
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