Question

Which of the following is not usually a property of metal
a) Conductivity
b) Ductility
c) Gas at room temperature
d) Malleability

Answer 1

A metal is a substance that has a shiny look when freshly produced, polished, or shattered, and conducts electricity and heat reasonably effectively. Metals are either malleable or ductile (they may be hammered into thin sheets) (can be drawn into wires). Metals can be chemical elements like iron, alloys like stainless steel, or molecular compounds like polymeric sulphur nitride.

Complete answer:
Metals' Physical Properties
Thin sheets of metal can be hammered out of metals. It indicates they have the ability to be moulded. Metals have a ductile property. Wires can be made out of them. Metals are excellent heat and electrical conductors. Metals are lustrous, meaning they have a gleaming finish. Tensile strength is a property of metals. It indicates they can support a lot of weight. Metals have a resonant quality to them. It implies they produce a ringing sound when we strike them. Metals are abrasive. It indicates they are difficult to cut.
Metals have layers of metal ions that make up their structure. When a force is given to these layers, they can glide over each other. This implies that the metal layers may be pounded flat and stacked on top of one another to form thin wires. The metal may alter form without fracturing thanks to metallic bonding.
Because they contain charged particles that may move, substances conduct electricity.
Delocalized electrons move across the lattice structure when a voltage is applied to a metal. An electric current is formed by the movement of these charged particles. The metal ions in the metallic lattice are not able to migrate and are kept in fixed locations.
Metals of this kind do not exist in the gaseous form. Except for mercury (Hg), which exists in the liquid state at normal temperatures, all metals exist in the solid state.

Hence option c is correct.

Note:
Because metals have a higher tendency to lose electrons, they are excellent reducing agents. It has a low electronegativity. They have the ability to produce cation, although it is much smaller than the initial atom. Ionic bonds are produced most of the time, however some metals, such as aluminium, iron, and lithium, create covalent connections. They readily react with acids and bases, although there are certain exceptions, such as lead, gold, platinum, copper, and others, which are non-reactive.