Question

Four elements and their electronegativity values (Pauling Scale) are given below. Match the element with its electronegativity value.}

• A. (i)-(b), (ii)-(e), (iii)-(d), (iv)-(c)
• B. (i)-(e), (ii)-(d), (iii)-(b), (iv)-(c)
• C. (i)-(b), (ii)-(c), (iii)-(d), (iv)-(e)
• D. (i)-(c), (ii)-(d), (iii)-(e), (iv)-(b)
• E. (i)-(c), (ii)-(d), (iii)-(a), (iv)-(b)

Hint:

Electronegativity generally increases across a period and decreases down a group. So alkali metals have very low values, while halogens have high values.

Answer 1

The Correct Option is A

Approximate Pauling electronegativity values are: \[ Rb \approx 0.8 \] \[ Na \approx 0.9 \] \[ I \approx 2.5 \] \[ Cl \approx 3.0 \] So the matching is:

• \(Rb \to 0.8\)
• \(Na \to 0.9\)
• \(I \to 2.5\)
• \(Cl \to 3.0\)

This corresponds to: \[ \boxed{(A)} \]