AMMONIA TEST 2

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1 point

When ferric chloride reacts with ammonium hydroxide the precipitate produced is

ferric hydroxide and is soluble in excess NH4OH

ferrous hydroxide and is dirty green in color

ferric hydroxide and is dirty green in color

ferric hydroxide and is reddish brown in color

1 point

When ammonium hydroxide is passed through copper sulphate solution

a gelatinous white precipitate is produced.

a pale blue precipitate is produced which remains insoluble in excess

a pale blue precipitate is produced which form an inky blue precipitate in excess

a pale blue precipitate is produced which form an inky blue solution in excess.

1 point

Chemically Nessler's reagent is -

K2HgI4

KHgI

k2HgI2

KHI

1 point

The balanced equation for the reaction of copper oxide with ammonia is

NH3 + 3CuO --> 3Cu + 3H2O + N2

2NH3 + 3CuO --> 3Cu + 3H2O + N2

2NH3 + 3Cu2O --> 3Cu + 3H2O + N2

2NH3 + 3CuO --> Cu + 3H2O + N2

1 point

Sal Ammoniac is chemically

NH4Cl

KNO3

NH4NO3

NaNO3

1 point

The balanced equation for the burning of ammonia in the presence of oxygen and a catalyst is -

4NH4 + 5O2 --> 4NO + 6H2O

3NH3 + 5O2 --> 4NO + 6H2O

4NH3 + 5O2 --> 4NO + 6H2O + N2

4NH3 + 5O2 --> 4NO + 6H2O

1 point

The drying agent not used to dry ammonia produced in the laboratory is

P2O5

CaO

1 point

When chlorine in excess is made to react with ammonia the products are

NH4Cl

HCl + NCl3

NH4Cl + N2

NCl3 + N2

1 point

An ammonium salt which is a constituent of smelling salt is -

NH4NO3

NH4Cl

(NH4)2CO3

(NH4)2SO4

10.

1 point

When ammonia is passed through methyl orange its color changes to

yellow

blue

pink

orange

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