Copper II Oxide

Q. The secondary valency and the number of hydrogen bonded water molecule(s) in $CuS{O}_4.5H_{2}O$, respectively, are:

1. 4 and 1
2. 6 and 4
3. 6 and 5
4. 5 and 1

Q. Cupric oxide when heated to 1100-1200 degree Celsius gives $CuO\to A+O_2$

1. $C{u}_{2}O$
2. No Reaction possible
3. $Cu$
4. $C{u}_2{O}_3$

Q. Cupric oxide when heated to 1100-1200 degree Celsius gives $CuO\to A+O_2$

1. $C{u}_{2}O$
2. No Reaction possible
3. $Cu$
4. $C{u}_2{O}_3$

Q. Cupric oxide when heated to 1100-1200 degree Celsius gives $CuO\to A+O_2$

1. $C{u}_{2}O$
2. No Reaction possible
3. $Cu$
4. $C{u}_2{O}_3$