Which of the following best explains why sodium chloride is solid at room temperature?
It has a strong electrostatic attraction between ions.
Sodium chloride is an ionic compound in which Na+ and Cl- ions are held together by a strong electrostatic (ionic) attraction that requires a large amount of energy to break, keeping NaCl solid at room temperature. Hence, the correct answer is It has a strong electrostatic attraction between ions.
Phosphoric acid (H3PO4) is composed of which of the following ions?
Covalent bonds are formed by the:
Which of the following best describes a molecule of a compound?
Which statement explains why covalent compounds generally have low melting points?
Which of the following pairs of elements is most likely to form an ionic bond?
What is formed when a non-metal gains electrons?
When a non-metal gains electrons, it forms:
What is the valency of oxygen in MgO?
Which of the following statements correctly identifies a key property of diamond, an allotrope of carbon, that distinguishes it from graphite?
If a metal and a non-metal is mixed to form a compound, which type of charged species is most likely present, and how are they classified?
Ozone is:
Out of the following which compound does not show sp 3hybridization ?
Which of the following has sp 3d hybridization?
How many geometrical isomers are possible for the complex $ [Pt(NH_3)_2Cl_2] $?
Sulphur exhibit variable Valency due to