Which of the following is NOT true of metals?

Assessment: JAMB UTME - Chemistry - 1994 Subject: Chemistry

Question 1 Report

Which of the following is NOT true of metals?
Answer Details
The statement that is NOT true of metals is: "Their oxides are acidic". Metals are elements that tend to have certain characteristics such as good conductivity of heat and electricity, high melting points, and the ability to lose electrons to form positively charged ions or cations. When a metal reacts with oxygen, it forms metal oxide, which may be either basic or amphoteric, but not acidic. Basic oxides react with acids to form salts and water, while amphoteric oxides can react as either an acid or a base. Therefore, their oxides are not acidic, but either basic or amphoteric in nature.
Read lesson note on Metals And Their Compounds (JAMB)
View Answer

Related Questions

1

In an electrolytic set-up to protect iron from corrosion, the iron is?
2

When sodium ethanoate is treated with a few drops of concentrated tetraoxosulphate(vi)acid. one of the products is
3

One mole of a hydrocarbon contains 48 g of carbon. If it vapour density is 28, the hydrocarbon is?
4

Which of the following reagents will confirm the presence of unsaturation in a compound?
5

Which of the following compounds is NOT an isomers of 2,2 dimethylbutane?
6

\( \mathrm{MnO_4(aq) + 8H + 5Fe^{2+} \rightarrow Mn^{2+}(aq) + 5Fe^{3+}(aq) + H_2O} \). The oxidation number of maganese in the above reaction changed from
7

The general formula of alkanoates is?
8

Which of the following is the correct order of decreasing activity of the metals Fe, Ca, Al and Na?

Download The App On Google Playstore

Everything you need to excel in your exams

Green Bridge CBT Mobile App
Personalized AI Learning Chat Assistant
200,000+ Exam Questions Across IGCSE, JAMB, WAEC & NECO
Over 3,900 Lesson Notes
Offline Support - Learn Anytime, Anywhere
Green Bridge Timetable
Literature Summaries & Potential Questions
Track Your Performance & Progress
In-depth Explanations for Comprehensive Learning