JEE Main 2014 · 11 Apr · Shift 1 · Chemistry Q41

ChemistrySingle correct+4 / -1Question 41 of 90

Which of the following series correctly represents relations between the elements from X to Y ?

X → Y

{}_3\mathrm{Li}\to{}_{19}\mathrm K

: Ionization enthalpy increases

{}_9\mathrm F\to{}_{35}\mathrm{Br}

: Electron gain enthalpy with negative sign increases

{}_6\mathrm C\to{}_{32}\mathrm{Ge}

: Atomic radii increases

{}_{18}\mathrm{Ar}\to{}_{54}\mathrm{Xe}

: Noble character increases

Answer and worked solution

Official answer: C

Down a group, atomic radius increases: C → Si → Ge.

The other statements are wrong:

JEE Main 2014 · 11 Apr · Shift 1, Chemistry question 41