Year: 2016
Topic: The p-Block Elements
Time :
1.
When copper is heated with conc. HNO
3
it produces
(1). Cu(NO
3
)
2
and NO
(2). Cu(NO
3
)
2
, NO and NO
2
(3). Cu(NO
3
)
2
and N
2
O
(4). Cu(NO
3
)
2
and NO
2