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Reactivity Series

The correct o...

Question

The correct order of increasing chemical reactivity is :

A

Z n < F e < M g < K

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B

F e < M g < Z n < K

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C

F e < M g < K < Z n

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D

F e < Z n < M g < K

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Solution

The correct option is D $F e < Z n < M g < K$
The reactivity series is a series in which metals are arranged in decreasing order of their reactivities.
$F e < Z n < M g < K$
In the reactivity series, the most active metal is at the top of the series.

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Q. SRP values of

M g^{2 +} | M g

F e^{2 +} | F e

Z n^{2 +} | Z n

- 2.37 V, - 0.44 V

- 0.76 V

respectively. The correct statement is:

E^{o}

M g^{2 +} / M g = - 2.37 V, Z n^{2 +} / Z n = - 0.76 V

F e^{2 +} / F e = - 0.44 V

Which of the following statement is correct?

E^{⊖} o f M g^{2 +} | M g, Z n^{2 +} | Z n,

F e^{2 +} | F e

- 2.37 V

- 0.76 V

0.44 V

, respectively. Which of the following is correct ?

Q. The order of reactivity of metals is
(a) K > Na > Ca > Au
(b) K > Ca > Na > Mg
(c) Fe > Na > Mg > Au
(d) Cu > Fe > K > Na

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