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Question : 7
Total: 12
A metal nitrate 'A' on heating gives a metal oxide along with evolution of a brown coloured gas ' B A
(a) Identify 'A B
(b) Name the types of the reactions involved in the above statement .
(a) Identify '
(b) Name the types of the reactions involved in the above statement .
Solution:
The metal in compound A ( Pb )
Reaction 1 as:
2 Pb ( NO 3 ) 2
2 PbO + 4 NO 2 + O 2
Reaction 2:
Pb ( NO 3 ) 2 + 2 KI → Pbl 2 + 2 KNO 3
Compound A-Lead nitrate:Pb ( NO 3 ) 2
Compound B-Nitrogen dioxide-NO 2
Reaction 1 is thermal decomposition, whereas, reaction 2 is double decomposition reaction.
Reaction 1 as:
Reaction 2:
Compound A-Lead nitrate:
Compound B-Nitrogen dioxide-
Reaction 1 is thermal decomposition, whereas, reaction 2 is double decomposition reaction.
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