CHEMISTRY PAPER 2 - Gcecompilation

CHEMISTRY PAPER 2

Solved Topical and Yearly (2005-2016)

Niaz Ahmed Awan

9-F, Main Market Gulberg II, Lahore. Tel: 042-35714038 Cell: 0336-5314141 E-mail: readandwrite.publications@ Facebook page: readandwritepublications/Shop

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise,

without the prior written permission of the Publisher. Cambridge International has not provided these questions or answers and can take no responsibility

whatsoever for their accuracy or suitability for the examinations.

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Published by Printed by Composed by Title designed by Edition Price

O-Level Chemistry P-2 Niaz Ahmed Awan Cell: +92 300 425 5956 Email:niaz.awan564@ Read & Write Publications Sadaat Printers Urdu Bazar, Lahore. Rashid Mehmood, Salman Bukhsh Rashid Mehmood 2016-17

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Preface

This book has been developed as part of Read and Write Publications past papers solutions series. The book is organized as Solved/Topical/Yearly (3 in 1) series. It provides solutions for theory structured questions taken from past papers starting from June 2005 to June 2016.

Structure Questions testing knowledge of almost every area of the syllabus. This raises need of a solved topical book which could help the students to test their knowledge once they have learnt a particular syllabus area in the class.

This book includes Eleven units which are further divided into sub topics. Each question is labeled with exam year/paper/question no/section. e.g [J05/P2/QA1/d]. Each question is followed by SOLUTION section which provides brief yet comprehensive answers.

Index is added at the end to help reader search each question in chronicle order from 2005 to 2016 through page number given with each question.

Constructive criticism and suggestions to make the subsequent editions more useful would be

appreciated and thankfully acknowledged.

Niaz Ahmed Awan Cell: +92 300 425 5956 Email:niaz.awan564@

Contents

Unit-1

1.1 1.2

Unit-2

2.1 2.2 2.3 2.4 2.5

Unit-3

Unit-4

Unit-5

Unit-6

6.1 6.2 6.3

Unit-7

7.1 7.2 7.3 7.4

Unit-8

8.1 8.2 8.3

Unit-9

9.1 9.2 9.3 9.4

Experimental Chemistry ..........................................................................................6

Identificationof Ions And Gases ...................................................................................... 6 Methods Of Separation (Purification) ............................................................................ 15

The Particulate Nature of Matter ...........................................................................18

Kinetic Particle Theory .................................................................................................. 18 Atomic Structure ............................................................................................................ 21 Strcutures And Properties Of Materials......................................................................... 31 Ionic Bonding................................................................................................................. 40 Covalent Bonding .......................................................................................................... 47

Formulae, Stoichiometry And The Mole Concept....................................................52

Electrolysis ............................................................................................................ 84

Energy From Chemicals........................................................................................ 100

Chemical Reactions ............................................................................................. 110

Rate Of Reaction ......................................................................................................... 110 Redox .......................................................................................................................... 128 Equilibrium & Dynamic Equilibrium ............................................................................. 135

The Chemistry and Uses of Acids, Bases and Salts................................................. 139

Properties Of Acids And Bases ................................................................................... 139 Properties Of Salts ...................................................................................................... 153 Properties And Uses Of Ammonia .............................................................................. 157 Sulfuric Acid ................................................................................................................ 160

The Periodic Table ............................................................................................... 163

Periodic Trends ........................................................................................................... 163 Group Properties ......................................................................................................... 165 Transition Elements..................................................................................................... 177

Metals ................................................................................................................ 181

Properties of Matels .................................................................................................... 181 Reactivity Series.......................................................................................................... 186 Extractions Of Metals .................................................................................................. 193 Iron .............................................................................................................................. 194

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