Periodic Properties

Periodic Properties
Class:XI / Unit:3

1. Mulliken scale of electronegativity uses the concept of

EA and EN
EA and IP
EA and bond energy
EA and atomic size

2. Effective nuclear charge in group generally

Increases down the group
Decreases down the group
Remains constant
First increases then decreases

3. One would expect proton to have very large

Hydration energy
Charge
Radius
Ionization potential

4. Polarity of bond can be explained by

Electron gain enthalpy
Electron affinity
Ionization potential
Electronegativity

5. Pauling electronegativity scale is based on

Bond length
Covalent radius
Bond energy
Atomic radius

6. Screening effect is not observed in

He⁺
Li⁺²
H
All of these

7. Correct order of electron affinity is

F > Cl > Br > I
Cl > F > Br > I
I > Br > Cl > F
Br > Cl > F > I

8. Among K, Ca, Fe and Zn the element which can form more than one binary compound with chlorine is

Ca
Fe
K
Zn

9. The element with atomic number 118 will be

Nobel gas
Transition metal
Alkali metal
Alkaline earth metal

10. The radius of K atom is 0.203 nm. The radius of K⁺ ion will be

0.133
0.231
0.234
0.251