The P Block Elements - Result Question 43
####44. Which of the following does not give oxygen on heating?
(a) $Zn(ClO_3)_2$
(b) $K_2 Cr_2 O_7$
(c) $(NH_4)_2 Cr_2 O_7$
(d) $KClO_3$
[NEET 2013]
Show Answer
Solution:
(c) $(NH_4)_2 Cr_2 O_7 \xrightarrow{\Delta} N_2+Cr_2 O_3+4 H_2 O$
$Zn(ClO_3)_2 \xrightarrow{\Delta} ZnCl_2+3 O_2$
$2 KClO_3 \xrightarrow{\Delta} 2 KCl+3 O_2$
$4 K_2 Cr_2 O_7 \xrightarrow{\Delta} 4 K_2 CrO_4+2 Cr_2 O_3+3 O_2$
