Solve

Guides

0

You visited us 0 times! Enjoying our articles? Unlock Full Access!

Ionization Enthalpy

Question

In which of the following options the order of arrangement does not goes with the variation of property indicated against it?
$A l^{3 +} < M g^{2 +} < N a^{+} < F^{-}$ (increasing ionic size)
$L i < N a < K < R b$ (increasing metallic radius)
$B < C < N < O$ (increasing first ionisation enthalpy)
$I < B r < C l < F$ (increasing electron gain enthalpy)

A

I < B r < C l < F

(increasing electron gain enthalpy)

B

A l^{3 +} < M g^{2 +} < N a^{+} < F^{-}

(increasing ionic size)

C

L i < N a < K < R b

(increasing metallic radius)

D

B < C < N < O

(increasing first ionisation enthalpy)

Open in App

Solution

Verified by Toppr

The electron gain enthalpy of chlorine is more than fluorine because in it the added electron goes to the smaller energy level (n = 2) and hence suffers significant repulsion from the electrons already present in this shell.

The first ionisation enthalpy of Nitrogen is more than oxygen due to half-filled p orbital which makes the nitrogen more stable.

Was this answer helpful?

34

Similar Questions

Q1

In which of the following option the order of arrangement does not agree with the variation of property indicated against it

a) Li<Na<K<Rb(increasing metallic radius)

b) B<C<N<O(increasing 1st ionisation enthalpy)

c)I<Br<Cl<F(increasing electron gain enthalpy)

d) Al³⁺<Mg²⁺<Na⁺<F^-(increasing ionic size)

View Solution

Q2

In which of te following options order of arrangement does not agree with the variation of property indicated against it?
(a) $A l^{3 +} < M g^{2 +} < N a^{+} < F -$ (Increasing ionic size)
(b) B < C < N < O (Increasing first ionlsation enthalpy)
(c) I < Br < Cl< F (increasing electron gain enthalpy)
(d) Li < Na< K < Rb (Increasing metallic radius)

View Solution

Q3

In which of the following arrangements, the order is according to the property indicated against it.

(I) I < B r < F < C l increasing electron gain enthalpy

(I I) L i < N a < K < R b increasing metallic radius

(I I I) B < C < N < O increasing first ionization energy

(I V) A l^{3 +} < M g^{2 +} < N a^{+} < F^{-} increasing ionic size

View Solution

Q4

Arrange the following as per instructions given in the brackets.

(a) Mg. Cl, Na, S, Si (decreasing order of atomic size)

(b) Cs, Na, Li, K, Rb (increasing metallic character)

(c) Na, K, Cl, S, Si (increasing ionisation potential)

(d) Cl, F, Br, I (increasing electron affinity)

(e) Cs, Na, Li, K, Rb (decreasing electronegativity)

View Solution

Q5

Arrange the following as per the instruction in the brackets -

[i]

H e, A r, N e

[Increasing order of the number of electron shells]

[ii]

N a, L i, K

[Increasing ionisation energy],

[iii]

F, C l, B r

[Increasing electronegativity]

[iv]

N a, K, L i

[Increasing atomic size].

View Solution