Question

28. Answer the fol
(1) Arrange the
ver the following questions :
Arrange the metal Al, Cu, Fe, Pb, Mg, Zn and Na in descending order 01
reactivity towards oxygen.
Give names of two metals that can displace hydrogen from dilute acid and
metals that cannot do so.
(2) Give names two metal that react with dilute acid to displace hydroge ​

Answer 1

Answer:

(1) According the reaction with oxygen the metal can be arranged in the descending order- 'Na, Mg, Al, Zn, Fe, Pb, Cu'. This arrangement is done on the basis of the vigorously burn the metal with the oxygen.

(2)  Iron and Zinc will displace hydrogen from dilute acids as they are more reactive than hydrogen. Mercury and copper will not displace hydrogen from dilute acids as they are less reactive than hydrogen.

Hope it helps..!!

Answer 2

Answer:

Explanation:

reactivity means electron losing tendency

so more size reactivity will be more