Question

Which of these statement/s is are correct about displacement reactions? I. The more reactive metals can replace the less reactive metals in chemical reactions. II. Reactivity series is a table which shows the arrangement of metals on the basis of their reactivity. III. The most reactive metal is placed at the bottom of the series. *

A. Only statement I and III
B. Only statement II and III
C. Only statement I and II
D. Only statement I ,II, and III​

Answer 1

Answer:

The arrangement of metals in a vertical column in the order of decreasing reactivities is called reactivity series. The reactivity series follows the order:

K>Na>Ca>Mg>Al>Zn>Fe>Pb>H>Cu>Hg>Ag>Au

(b) Lead is more reactive than hydrogen and copper is less reactive than hydrogen

(c) Zinc displaces copper from copper sulphate solution and mercury does not displace copper from copper sulphate solution

(d) Copper displaces silver from silver nitrate solution and gold does not.

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Answer 2

Answer:

The Answer is D

Explanation:

Because reactions are less in metals