railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) General Science Chemistry Chemical Reaction
Only those metals can displace hydrogen from water, which is ______ in the reactivity chain of metals.
A. Below hydrogen
B. Above hydrogen
C. Above or Below
D. Metals cannot displace hydrogen from water.
1
B
2
C
3
D
4
A