Question

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5. Which of the following chemical reactions are impossible
Aluminium react with dil HNO, and liberate H, gas
ii) Magnesium react with very dilute HNO, and liberate H, gas
in Copper and silver can displace H, from very dil acids
iv) Aluminium, zinc and iron can react with cold or hot water and liberate H, gas
a) only i and ii b) only i, iii and iv c) only iii and iv d) all​

Answer 1

Answer:

b. only i, iii and iv

its simple. most questions are related to the reactivity series