Electrovalent Bonding MCQs

Electrovalent Bonding MCQs

When an anion and a cation come close to each other, they are held together by an electrostatic force of attraction. This interaction forms what is known as an ionic or electrovalent bond. Such a bond occurs when one atom has more electrons than the nearest inert gas configuration, and the other atom has fewer electrons than the nearest inert gas configuration. Essentially, electrovalent bonds involve the transfer of electrons from one atom to another dissimilar atom that tends to gain electrons, allowing both atoms to achieve stable inert gas configurations. The electrostatic attraction between the ions always works to decrease the potential energy.

Electrovalent compounds are

(a) low melting
(b) insoluble in polar solvents
(c) conductors in the fused state
(d) none of the above

Ionic compounds don’t conduct electricity in

(a) solution
(b) fused state
(c) solid state
(d) none of the above

In which of the following C-C bond length is least?

(a) benzene
(b) diamond
(c) ethylene
(d) acetylene

An element having 4 electrons in its outermost orbit forms bond by

(a) losing electrons
(b) gaining electrons
(c) sharing electrons
(d) any of the above

When an element of very low ionization potential reacts with an element of very high electron affinity

(a) a covalent bond is formed
(b) an electrovalent bond is formed
(c) a metallic bond is formed
(d) no bond is formed

The paramagnetic nature of oxygen molecule is explained by

(a) Valence bond theory
(b) Heitler London theory
(c) Hund Mulliken theory
(d) none of the above

Elements with electronegativities 1.2 and 3.0 form

(a) electrovalent bond
(b) covalent bond
(c) coordinate bond
(d) metallic bond

The bond between two atoms of the same element is

(a) polar covalent bond
(b) ionic bond
(c) non-polar covalent bond
(d) none of the above

The bonds present in CuSO4·5H2O are

(a) electrovalent and coordinate
(b) covalent and coordinate
(c) electrovalent and covalent
(d) electrovalent, covalent and coordinate

The percentage of ionic character of a bond is calculated by the difference in

(a) size of atoms
(b) ionization potential of atoms
(c) electronegativity of atoms
(d) atomic volumes of atoms