   Chapter 21, Problem 15PS

Chapter
Section
Textbook Problem

Place the following oxides in order of increasing basicity: CO2, SiO2, SnO2.

Interpretation Introduction

Interpretation: Given oxides should be placed in order of increasing basicity.

Concept introduction: Oxides are formed on reaction of an element with oxygen. A basic oxide is an oxide that shows basic properties in solution. Basic oxides on reaction with water form a base. This is a characteristic property of basic oxides and thus illustrates its basic behavior. Basic oxides are generally oxides of metals and they react with water to form alkaline solutions of metal hydroxides. The general reaction of a metal oxide with water is as follows:

MO(s)+H2O(l)M(OH)2(aq)

Acidic oxides are generally oxides of non-metals and they react with water to form acids.

As we move down the group in the periodic table, the size of element increases and it is easier for the element to lose electrons. Therefore, the metallic character increases down the group as metals are good as donating electrons. And since metal forms basic oxides, so basicity also increases down the group.

Explanation

Carbon, silicon and tin belongs to group 4A of the periodic table. As we move down the group from carbon to tin, there is an increase in the atomic size of the element. As the size increases down the group, it is easier for the element to lose electrons. Therefore, the metallic character increases down the group as metals are good as donating electrons. Carbon is a non-metal, silicon is a metalloid and tin is a metal. Metals generally form basic oxides.

This is illustrated by the fact that the metal oxide on reaction with water produces an alkaline solution of hydroxides. Thus, the oxide of carbon CO2 is acidic because carbon is a non-metal and on reaction with water its oxide produces carbonic acid

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Complete the following table:

Chemistry: An Atoms First Approach

Give the names of the following ions. a Cr3+ b Pb4+ c Ti2 d Cu2+

General Chemistry - Standalone book (MindTap Course List)

The energy intake recommendation is set at a level predicted to maintain body weight. T F

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

What evidence can you give that sunspots are magnetic?

Horizons: Exploring the Universe (MindTap Course List) 