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IE2 IE1...

`IE_2` __________ `IE_1`

A

Greater

B

Smaller

C

Does not change

D

Remains smae

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IE_2 gt IE_1 for a given element - Why.

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Knowledge Check

  • Ionisation energies of Ni and Pt in Kj/mol are given below {:("",IE_1 + IF_2,IE_3 + IE_4),(Ni,2.49,8.80),(Pt,2.60,6.70):} So the correct statment is

    A
    Ni(Il) compounds tend to be thermodynamically more stable than Pt(II)
    B
    Pt(lV) compounds tend to be more stable than Ni(lV
    C
    a & b both
    D
    None of these

  • (IE)_1 and (IE)_2 of Mg_((g)) are 740, 1540 kJ mol^(-1) . Calculate percentage of Mg_((g))^(+) and Mg_((g))^(2+) if 1 g of Mg_((s)) absorbs 50.0 kJ of energy.

    A
    `%Mg^+` = 70% %`Mg^(+2)` = 30%
    B
    %`Mg^+` =68.35% %`Mg^(+2)` = 31.65%
    C
    % `Mg^(+)` = 72% %`Mg^(+2)` = 28%
    D
    %`Mg^+` = 60% % `Mg^(+2)` = 40%

  • (IE)_1 and (IE)_2 of Mg_((g)) are 740, 1540 kJ mol^(-1) . Calculate percentage of Mg_((g))^(+) and Mg_((g)^(2+) if 1 g of Mg_((g)) absorbs 50.0 kJ of energy.

    A
    `%Mg^(+) = 50% "   " %Mg^(+2) = 50% `
    B
    `%Mg^(+) = 70.13% "   " %Mg^(+2) = 29.87% `
    C
    `%Mg^(+) = 75% "    " %Mg^(+2) = 25% `
    D
    `%Mg^(+)  = 60% "   " %Mg^(+2 )= 40%`

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