Tardigrade
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Tardigrade
Question
Chemistry
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
Q.
E
M
2
+
/
M
0
values of some metals are
B
e
:
−
1.85
V
M
g
:
−
2.37
V
C
a
:
−
2.87
V
S
r
:
−
2.89
V
C
u
:
+
0.34
V
H
g
:
0.80
V
Number of metals which can displace
H
2
gas from acid is
47
216
The s-Block Elements
Report Error
Answer:
4
Solution:
Correct answer is (d)