Question
Chemistry Question on d -and f -Block Elements
Which of the following does not give oxygen on heating ?
A
(NH4)2Cr2O7
B
KClO3
C
Zn(ClO3)2
D
K2Cr2O7
Answer
(NH4)2Cr2O7
Explanation
Solution
(NH4)2Cr2O7−>[Δ]N2+Cr2O3+4H2O do not produces O2.