Questions
Hydrogen is evolved the action of cold dilute on
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a
Fe
b
Mg or Mn
c
Cu
d
Al
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Correct option is B
Only Mg and Mn react with cold dil. HNO3 to give H2.Cu reaction with dilute HNO3 makes Copper (II) nitrate, nitric oxideFe reacts with dilute HNO3 makes Ferric nitrate, nitrous oxide and waterAl reacts with HNO3 makes Aluminium nitrate, nitrogen and waterSimilar Questions
Which of the following gas is/are obtained by electrolysis of acidified water using platinum electrodes?
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