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)

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Solution

(b, c) For increasing first ionization enthalpy, the order should be:
B < C < O < N
For increasing electron gain enthalpy, the order should be:
I < Br < F < Cl

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Similar questions

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)

Q. 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

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)

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

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

Q. 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].

Q. Match the increasing orders given in column I with the property(ies) given in column II.

Column I	Column II
(A) $N a^{+} < F^{-} < O^{2 -} < N^{3 -}$	(p) electronegativity
(B) $L i^{+}$ < $N a^{+}$ < $K^{+}$ < $R b^{+}$ < $C s^{+}$	(q) Ionisation energy
(C) $O < S < F < C l$	(r) Size
(D) $C l^{-} < K^{+} < C a^{2 +} < S c^{3 +}$	(s) Electron affinity

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(b, c) For increasing first ionization enthalpy, the order should be: B < C < O < N For increasing electron gain enthalpy, the order should be: I < Br < F < Cl

(b, c) For increasing first ionization enthalpy, the order should be:
B < C < O < N
For increasing electron gain enthalpy, the order should be:
I < Br < F < Cl