Answers

2015-03-17T20:57:07+05:30
(iii) The metal oxide which cannot be reduced by hydrogen is sodium oxide.
(iv) A metal nitrate which leaves no residue on heating is Ammonium nitrate.
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thanks
welcome
why only Ammonium nitrate.
Rajusetu
Ammonium nitrate thermally decomposes to give only gaseous products, nitrous oxide and water vapour. Therefore there is no residue.
2015-03-17T21:06:54+05:30
Use reactivity series
 k na ca mg al zn fe sn pb h cu hg ag au pt
so answers are sodium oxide
2nd one is Ammonium nitrate i think
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