state gov APPSC Forest/Assistant Beat Officer (ఫారెస్ట్/అసిస్టెంట్ బీట్ ఆఫీసర్) (Pre + Mains) Mock Test 2025 General Science Chemistry
Arrange the following metals in the correct order of reactivity.
K, Al, Fe, Au, Pb
1
K > Al > Pb > Fe > Au
2
K > Al > Fe > Pb > Au
3
K > Al > Fe > Au > Pb
4
K > Fe > Al > Pb > Au