Question

A solid metal ‘A’ reacts with nitrogen in red hot condition to produce a greenish yellow powder ‘B’ . When ‘B’ is boiled in water a pungent smelling gas ‘C’ is formed. Identify A ,B ,C and write the necessary reactions.​

Answer 1

Answer:

The metal nitrate (A) is lead nitrate (Pb(NO

3

)

2

) on heating it produces lead oxide, Nitrogen dioxide (B) and oxygen gas (C)

(1) 2Pb(NO

3

)

2

→2PbO+4NO

2

+O

2

on reaction with potassium iodide mixture of lead iodide and potassium nitrate forms

(2) Pb(NO

3

)

2

+2KI→PbO

2

+2kNO

3

Alloy made of using lead is used in Soldering purpose.

Therefore A=[Pb(NO

3

)

2

),B=NO

2

C=O

2

D=PbI+KNO

3

(2) Decompostion type Reaction

(2) Double displacement type Reaction.

Answer 2

Explanation:

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