Oxides, Chlorides And Oxides

Question 0

What properties do nonmetallic oxides have

Answer 0

Covalent
Acidic
Some dissolve in water to form acidic solutions

Question 1

What properties do metal oxides usually have

Answer 1

Ionic
Basic
Neutralise acids = water and salt

Question 2

As the electro negativity between the oxygen and the other element decreases the

Answer 2

Bonding becomes less ionic

Question 3

Aluminium oxide is said to be amphoteric

Answer 3

Have both acidic and alkali properties neutralise boy acid and alkali to get salt and water

Question 4

Most metal chlorides have

Answer 4

Ionic bonding.

Dissolve in water without reacting

Question 5

Some covalent chlorides hydrolyse in water to

Answer 5

Produce fumes of hydrogen peroxide (white fumes)

Question 6

Aluminium chloride is covalent but is hydrilysed to fumes

Answer 6

Solid AlO sublimes changing directly from solid to gas

Question 7

Carbon tetra chloride is a covalent chloride with

Answer 7

Four polar bonds
Coz tetrahedral shape and symmetry it is overall non polar
Immiscible in water

Question 8

Most metal hydrides have

Answer 8

Ionic bonding
Contain hydride ion H-
React wi water to make hydrogen gas
Leaves an alkali solution

Question 9

Th hydride ion acts as a

Answer 9

Reducing agent ( reduce aldehydes to primary alcohols)

Question 10

Electrolysis of molten ionic hydrides produces

Answer 10

Hydrogen gas as the positive electrode