The P Block Elements Ques 39

39. 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) $(NH_4)_2 Cr_2 O_7 \xrightarrow{\Delta} N_2+Cr_2 O_3+4 H_2 O$

$Zn(ClO_3)_2 \xrightarrow{\Delta} ZnCl_2+3 O_2$

$2 KClO_3 \xrightarrow{\Delta} 2 KCl+3 O_2$

$4 K_2 Cr_2 O_7 \xrightarrow{\Delta} 4 K_2 CrO_4+2 Cr_2 O_3+3 O_2$



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