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arinaorinaa
Вопросов: 7
1

What is the main characteristic of metal atoms?

  • a) small atomic radius

  • b) large atomic radius

  • c) high electronegativity

2

Which group contains alkali metals?

  • a) Group IA

  • b) Group IIA

  • c) Group VIIA

3

Which metal is liquid at room temperature?

  • a) iron

  • b) mercury

  • c) zinc

4

Metals usually act as…

  • a) oxidising agents

  • b) reducing agents

  • c) catalysts only

5

Which property is typical for metals?

  • a) low electrical conductivity

  • b) high plasticity

  • c) poor thermal conductivity

6

In nature, active metals are mostly found as…

  • a) simple substances

  • b) salts

  • c) oxides only

7

What method is used to obtain active metals?

  • a) electrolysis of melts

  • b) simple filtration

  • c) evaporation of water