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CONTENTSCONTENTSFOREWORDiiiPREAMBLEvScie nce (Classes IX-X)1Chemistry (Classes XI-XII)22Physics (Classes XI-XII)33Biology (Classes XI-XII)44Mathematics (Classes IX-XII)57Social Science (Classes IX-XII)74History (Classes IX-X)77Geography (Classes IX-X)81Political Science (Classes IX-X)85Economics (Classes IX-X)88History (Classes XI-XII)93Geography (Classes XI-XII)101Political Science (Classes XI-XII)107Economics (Classes XI-XII)114Sociology (Classes XI-XII)120Psychology (Classes XI-XII)125Business Studies (Classes XI-XII)129Accountancy (Classes XI-XII)136Language - English142English (Classes IX-XII)149Hkk"kk&fganh161fganh (d{kk 9&10)170fganh (d{kk 11&12)176laL r (d{kk 9&10)182laL r (d{kk 11&12)188 kcku&mnwZ205mnZw (d{kk 9&12)214x}}}}}

CONTENTS CONTENTS FOREWORD iii PREAMBLE v Science (Classes IX-X) 1 Chemistry (Classes XI-XII) 22 Physics (Classes XI-XII) 33 Biology (Classes XI-XII) 44 …

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