Skip to main content
HardChemistry
+4 / -1
The incorrect statement among the following is-
A
The properties of elements are periodic function of their atomic numbers
B
Among the isoelectric species, Na⁺, Mg²⁺ and Al³⁺ ion having smalles radius is Al³⁺ ion
C
The outer most electronic configuration of group 15 elements is ns²np⁵
D
Electronegativity of an element depend upon its atomic size
Previous

Atomic radius decreases in a period, but after halogens, the atomic radius sudde

Next

Consider the following statements: I. The radius of an anion is larger than that

More from Periodic Table
Hard

(A), (B) and (C) are elements in the second short period. Oxide of (A) is ionic, that of (B) is amph

Hard

The basic character of MgO, SrO, K₂O and NiO increases in the order -

Hard

Arrange into the order of increasing basicity (NO₂, K₂O, ZnO) -

Hard

Arrange the following hydrides in their increasing acid strength [CH₄, H₂S, PH₃ and SiH₄] -

Hard

Consider the M(OH)₃ formed by all the group 13 elements. The correct sequence of acidic strength of

Hard

The correct order regarding the electro-negativity of hybrid orbitals of carbon is ?

Practice Chemistry Exams

Full-length mock tests with detailed analytics, rank, and percentile.

Browse Exams