Question

please help me in solving this problem. please give the right answer​

Answer 1

Answer:

mg and nacl is correct as per me

Answer 2

Answer:

option 1

Explanation:

For option 1,

Cu + AgNO3 -------------> CuNO3 + Ag

Here Cu is more reactive than Ag so it displaces Ag from its salt solution that is AgNO3.

Rest in other options the lone metals(metal without any radical) are less reactive than the associated compounds in the options like

in option 2 Ag is lone metal and FeSO4 is a compound(salt) in which Ag us less reactive than FeSO4. Similarly in options 3 and 4

Therefore option 1 shows displacement reaction.

For this you have to remember the reactivity series.

Thank you...

Hope it helps mate....