Some statements are given. Among them the correct statements are a) IP2 of sodium is greater than that of magnesium b) IP2 of lithium is greater than IP1 of helium c) IP2 of sodium is greater than IP1 of neon d) IP1 of oxygen is greater than that of nitrogen

a) IP2 of Na>Mg....True Na+ has inert gas configurationb) IP2 of lithium means removal of electron from stable Li+ lon. Li+....1s2 He....1s2 Both Li+ and He have 1s2 configuration, but effective nuclear charge of Li+>He IP2 of Li > IP1 of He Thus, IP2 of Li>IP1 of He.....TrueC)IP2 of Sodium means removal of electron from stable Na+ ion. Na+....1s2 2s2 2p6 Ne ....1s22p63p6 Both Na+ and Ne have 1s2 2s2 2p6 configuration but effective nuclear charge of Na+ > Ne IP2 of Na > IP1 of Ne Thus IP2 of Na >IP1 of Ne.....TrueD) IP1 of oxygen > Nitrogen........false Nitrogen has stable half filled electronic configuration. so, IP1 of Nitrogen is greater than that of Oxygen. Thus a,b.c are correct

Some statements are given. Among them the correct statements are a) IP2 of sodium is greater than that of magnesium b) IP2 of lithium is greater than IP1 of helium c) IP2 of sodium is greater than IP1 of neon d) IP1 of oxygen is greater than that of nitrogen

a) IP2 of Na>Mg....True Na+ has inert gas configurationb) IP2 of lithium means removal of electron from stable Li+ lon. Li+....1s2 He....1s2 Both Li+ and He have 1s2 configuration, but effective nuclear charge of Li+>He IP2 of Li > IP1 of He Thus, IP2 of Li>IP1 of He.....TrueC)IP2 of Sodium means removal of electron from stable Na+ ion. Na+....1s2 2s2 2p6 Ne ....1s22p63p6 Both Na+ and Ne have 1s2 2s2 2p6 configuration but effective nuclear charge of Na+ > Ne IP2 of Na > IP1 of Ne Thus IP2 of Na >IP1 of Ne.....TrueD) IP1 of oxygen > Nitrogen........false Nitrogen has stable half filled electronic configuration. so, IP1 of Nitrogen is greater than that of Oxygen. Thus a,b.c are correct

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Some statements are given. Among them the correct statements are
a) IP₂ of sodium is greater than that of magnesium
b) IP₂ of lithium is greater than IP₁ of helium
c) IP₂ of sodium is greater than IP₁ of neon
d) IP₁ of oxygen is greater than that of nitrogen

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All are correct

Only a, b and c are correct

Only a and b are correct

Only a and d are correct

answer is B.

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Detailed Solution

a) IP₂ of Na>Mg....True
    Na⁺ has inert gas configuration
b) IP₂ of lithium means removal of electron from stable Li⁺lon.
    Li⁺....1s²
    He....1s²
    Both Li⁺ and He have 1s² configuration, but effective nuclear charge of Li⁺>He
    $therefore$ IP₂ of Li > IP₁ of He
   Thus, IP₂ of Li>IP₁ of He.....True
C)IP₂ of Sodium means removal of electron from stable Na⁺ion.
    Na⁺....1s²2s²2p⁶
    Ne ....1s²2p⁶3p⁶
    Both Na⁺and Ne have 1s²2s² 2p⁶ configuration but effective nuclear charge of Na⁺ > Ne
    $therefore$ IP₂ of Na > IP₁ of Ne
   Thus IP₂ of Na >IP₁ of Ne.....True
D) IP₁ of oxygen > Nitrogen........false