Question

Some of the following statements are incorrect. Find the incorrect statements and correct them.

$\left(\mathrm{a}\right)$The property of metals by virtue of which they can be drawn into wires is called ductility.

$\left(\mathrm{b}\right)$ Metals are a good conductor of electricity but a poor conductor of heat.

$\left(\mathrm{c}\right)$ Articles made of metals produce a ringing sound when struck hard.

$\left(\mathrm{d}\right)$Oxides of non-metals and metals are acidic in nature.

$\left(\mathrm{e}\right)$ A less reactive metal replaces a more reactive metal from its salt solution in water.

Answer 1

Identifying the incorrect statements:

(b). Metals are good conductors of electricity but they are poor conductors of heat

• Solid material with a good electrical and thermal conductivity that is often hard, shiny, malleable, fusible, and ductile is considered a metal.
• Metals are particularly good heat conductors because their particles are densely packed, allowing vibrations to be transmitted fast.

Correct statement: Metals are good conductors of heat and electricity.

(d). Oxides of non-metal and metals are acidic in nature

• Non-metals and metals are reactive toward oxygen. Oxides are formed when metals and nonmetals combine with oxygen
• Metal oxides are basic in nature because they react with water to generate bases. Salt and water are generated when acids react with metal oxides, hence, they neutralize acids.
• Non-metallic oxides are typically acidic in nature. This is due to the fact that when they react with water, they produce an acidic solution.

Correct statement: Oxides of non-metal are acidic in nature while oxides of metals are basic in nature.

(e). A less reactive metal replaces a more reactive metal from its salt solution in water.

• A displacement reaction occurs when a metal is placed in a salt solution.
• Only a metal placed above it in the reactivity series can displace another metal from a complex. When a more reactive metal (one that generates positive ions more quickly) displaces a less reactive metal from a combination, it is called a displacement reaction.

Correct statement: A more reactive metal replaces a less reactive metal from its salt solution in water.