MEDIUM
Earn 100

Write the balanced chemical equation for the reaction of copper sulphate and ammonium hydroxide.

Important Questions on Study of Compounds - Ammonia

MEDIUM

Why is ammonia gas not collected over water?

MEDIUM

Identify the substance underlined in the following:

The catalyst used to oxidize ammonia into nitric oxide.

MEDIUM
Excess of ammonia with sodium hypochlorite solution in the prescence of glue or gelatine gives:
EASY

Identify the substance underlined:

The catalyst used to oxidise ammonia.

MEDIUM

State why concentrated sulphuric acid is not used for drying ammonia gas.

HARD

The following table represents the elements and the atomic number. With reference to this, answer the following using only the alphabets given in the table.

Element Atomic number
P 13
Q 7
R 10

Which element combines with hydrogen to form a basic gas?

EASY
What will be the colour of the resulting solution when excess aqueous ammonia is added to an aqueous solution of copper sulphate?
EASY

Name the gas evolved in the following case:

Ammonia reacts with heated copper oxide.

EASY
The most stable Lewis acid-base adduct among the following is
EASY

Reaction of ammonia with excess Cl2 gives :

 

EASY

State one observation for the following:

Ammonia gas is passed over heated copper (II) oxide.

EASY

Write a balanced chemical equation the following reaction:

Ammonium hydroxide is added to ferrous sulphate solution.

HARD

Write a balanced chemical equation for the following:

  • Reaction of excess ammonia with chlorine.
EASY

Formula of sal ammoniac is _____.

A. NaOH

B. NH4Cl

C. NH4NO3

(Enter your correct answer as A, B or C)

MEDIUM
Explain the following observation:
When tarnished copper is heated in an atmosphere of ammonia gas, the oxide layer is removed.
EASY
What happens when ammonia is passed over red hot copper oxide?
EASY
How ammonia gas is tested with Nessler's reagent?
EASY
The following statement is incorrect but can be corrected by adding word(s) in it. Rewrite the statement including the appropriate word(s) in your answer.
For example,
Incorrect Statement: Copper and nitric acid react together producing nitrogen dioxide.
Correct Statement: Copper and concentrated nitric acid react together producing nitrogen dioxide.
  • Nitrogen is obtained by passing ammonia over copper (II) oxide.
HARD
State one relevant observation for the given statement.
When ammonia gas is burnt in an atmosphere of excess oxygen.