Question

CHEMICAL PROPERTIES OF NON-METALS​

Answer 1

Answer:

- Elements that tend to gain electrons to form anions during chemical  reactions are called non-metals.

- These are electro-negative elements with high ionization energies.

- They are non-lustrous, brittle and poor conductors of heat and electricity (except graphite).

- Non-metals can be gases, liquids or solids.

Answer 2

Answer:

• Non metallic oxides are acidic in nature.

• They do not dissolve in dilute mineral acids.

• They form stable compound with hydrogen.

• Their chlorides are completely hydrolyzed by water.

• Reaction of non-metals with oxygen: They react with oxygen to form acidic oxides or neutral oxides.

• Reaction of non-metals with water: They do not react with water (steam) to evolve hydrogen gas.

• Reaction of non-metal with acids: They do not react with acids because they are negative charged electron.

• Reaction of non-metal with salt solution: They do not react with salt solution but displaces less reactive non-metal from the salt.

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