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Metals: Structure, Properties, and Reactivity Worksheet

This document is a worksheet for a class on metals. It contains multiple choice and short answer questions about the structure, properties, and reactions of metals and alloys. Specifically, it asks about the structure of metals, why they are malleable and good conductors, how alloys differ from pure metals, and examples of chemical reactions involving common metals like sodium, calcium, iron, aluminum, and magnesium.

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66 views4 pages

Metals: Structure, Properties, and Reactivity Worksheet

This document is a worksheet for a class on metals. It contains multiple choice and short answer questions about the structure, properties, and reactions of metals and alloys. Specifically, it asks about the structure of metals, why they are malleable and good conductors, how alloys differ from pure metals, and examples of chemical reactions involving common metals like sodium, calcium, iron, aluminum, and magnesium.

Uploaded by

haya
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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The City School

Quetta Campus
Topic: Metals
Name:__________________ Total Marks:25

Class:_____ Obtained Marks:____

Time Allowed: 30 mins

(1)

(a) Explain the structure of metals. (2)


(b) Explain why metals are malleable and ductile. (2)

(c) Explain why metals are good conductors of electricity. (2)

(d) Explain why metals have high melting and boiling points. (1)

(e) Name the product formed when metals react with oxygen. (1)

(f) Define the term alloy. (1)

(g) Give reason why alloys are strong and hard as compared to metal (1)

(h) Name the constituent elements which make the alloy brass. (1)
(i) Describe at least three differences between metals and alloys. (3)

(j) What happens to the electrons and positive ions in a metal wire when an electric

current is passed through it? (1)

(k) The position of metal M in the reactivity series is shown as

K, Na, M , Al, Zn, Fe, Pb, Cu, Ag

Name the method which will be used to extract M from its ore. (1)

(l) Complete and balance the following chemical equations (5)

Na(s) + O2(g)

Ca(s) + H2O(l)

Fe(s) + H2O(g)

Al(s) + HCl(aq)

Mg(s) + HCl(aq)
(m)The table shows the reactivity of five metals with either cold water or steam or with both.

Metal Reactivity

Barium reacts rapidly with cold water

Copper no reaction with steam or cold water

Magnesium reacts very slowly with cold water but reacts with steam
Sodium reacts very rapidly with cold water

Nickel only reacts when powdered and heated strongly in steam

Deduce the order of reactivity of these metals using the information in the table.

most reactive ____________________

_____________________

______________________

least reactive ______________________

_______________________ (3 )

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