HARDMCQ SINGLEJEE Advanced ChemistryInorganic Chemistryp -Block Elements (group 15-18)Achiever Section

Which of the following compounds give NH3 on heating? (I) NH4NO3 (II) NH4NO2 (III) (NH4)2 Cr2O7 (IV)(NH4)2CO3 (V) Mg (NH4) PO4

A.I, IV

B.II, V

C.IV only

D.IV, V✓ Correct

Explanation

4 3 2 2 4 2 2 2 4 2 7 2 2 3 2 2 NH NO N O 2H O NH NO N 2H O NH Cr O N Cr O 4H O -> -> -> 4 3 3 2 2 2 NH CO 2NH H O CO -> 4 4 3 4 3Mg NH PO 3NH MgHPO -> 2 2 3 Mg P O

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