1. Tardigrade
  2. Question
  3. Chemistry
  4. EM2+ / M0 values of some metals are Be: -1.85 V Mg :-2.37 V Ca :-2.87 V Sr :-2.89 V Cu :+0.34 V Hg: 0.80 V Number of metals which can displace H 2 gas from acid is

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Q. $E_{M^{2+} / M}^0$ values of some metals are
$Be: -1.85 \,V$
$Mg :-2.37\, V$
$Ca :-2.87 \,V$
$Sr :-2.89 \,V$
$Cu :+0.34\, V$
$Hg : 0.80 \,V$
Number of metals which can displace $H _2$ gas from acid is

The s-Block Elements

Solution:

Correct answer is '4'