Metal X burns vigorously when heated in air, whereas metal Y burns only when heated very strongly . Which of the following is the correct descending order of reactivity of Metal X , metal Y , copper and magnesium . AMagnesium, metal X, metal Y , copper  BMetal X , magnesium , copper , metal YCcopper , metal Y , Metal X , magnesium DMetal X, magnesium , metal Y , copper

Metal X forms an oxide that reacts with acids but not with strong alkalis .  Metal y forms an oxide that reacts with acids and strong alkalisMetal Z forms a hydroxide that is not decomposed by heating Which combination BEST identifies X , Y and Z ? AX= calcium , Y = zinc , Z = magnesium BX= iron , Y = aluminium , Z = sodiumCX= aluminium , Y = sodium, Z = calcium DX= magnesium , Y = copper , Z = potassium

Which is the correct order of the metals in the reactivity series, starting with the most reactive.A:K, Na, Li, Ca, Mg, C, Fe, H, CuB:Sn, Pb, Au, Ag, PtC:K, Li, Fe, Al, C, CuD:Fe, Zn, Cu, Al, O

Element X is below element Y in the same non-metallic group of the periodic table Aelement X will be more reactive than element YBelement X will be more electronegative than element YCelement Y will be a stronger oxidising agent than element XDboth elements X and Y will form covalent compounds only

2.To place metals in order of their reactivity, metals are reacted with water or _____ ___ and see which metals react the most/least

The metals magnesium, zinc, copper and aluminium were respectively chosen to be either metal A or metal B in the following experiment. The voltage between two of the selected metals was measured. The table shows the results of the investigation. Which conclusion is correct, using the information given?Experiment Voltage / V111.101.10222.712.71333.873.87440.710.7155−2.71−2.71Experiment 3 could be zinc and magnesium.Experiment 4 shows the most difference in reactivity between the metals.Experiment 2 could be copper and magnesium.It is impossible to tell which pair of metals produces the results for experiment 5.