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CBSE_NCERT Class Xth Topic _Properties of Alkanes/ Alkenes/ Alkynes

Properties of Alkanes/ Alkenes/ Alkynes   (10 th Carbon and its compounds) Properties of Alkanes/ Alkenes/ Alkynes (a) Alkanes are gas (C 1 to C 4 ) ; liquid (C 5 to C 17 ) and rest are solid at room temperature. (b) The melting and boiling point of Alkanes increases with increase in number of C – atom in Alkanes. Alkane Formula Boiling point [°C] Melting point [°C] State (at 20 °C) Methane CH 4 -162 -182 gas Ethane C 2 H 6 -89 -183 gas Propane C 3 H 8 -42 -188 gas Butane C 4 H 10 0 -138 gas Pentane C 5 H 12 36 -130 liquid Hexane C 6 H 14 69 -95 liquid Heptane C 7 H 16 98 -91 liquid Octane C 8 H 18 126

CBSE 11th(XI) Supplementary Reading Materials in Economics, Business Studies, Accountancy & Literature

 Supplementary Reading Material in Economics Part A: Introductory Microeconomics (Effective from March 2014 Examination)   -    English  |    Hindi Part B: Introductory Macroeconomics (Effective from March 2014 Examination)   -    English   |    Hindi Supplementary Material for Senior Secondary Biology   Gulliver’s Travels Novel Novel: Three Men in a Boat Language Skills Book – Functional English Class XI : Unit 1 and Unit 2 Literature Reader – Functional English Class XI : Unit 1 and Unit 2 Courtesy: CBSE ,  http://www.cbseacademic.in/

CBSE NCERT 10th History Questions with solution

Class : 10th (History)    Chapter _The Rise of Nationalism in Europe Q.1 Define Nation: Ans: A ‘Nation’ has thus been defined as “a body of people who feel themselves to be actually linked together by certain affinities which are so strong and real from them that they can live happily together, are dissatisfied when disunited and cannot tolerate subjection of peoples who do not share these ideas.” Q.2 What do you mean by nationalism? Ans: The words ‘nation’ and ‘nationality’ are derived from the Latin word ‘Natus’ which means a ‘race’. Devotion, love, and patriotic feelings for one’s own nation is called ‘Nationalism’. It is a feeling of political consciousness and unity among the people of a state. Q.3 What is the main contribution of the French Revolution to the world? Ans: The French Revolution led to the transfer of sovereignty from the monarchy to a body of citizens. It proclaimed that it was the people who would henceforth constitute the nation and shap

IX and X (9th_10th) Sample Papers for March 2014 CBSE Board Exam

IX_9th _Solved Sample paper for CBSE Board  English Communicative (Class IX ) Hindi course A (Class IX) Hindi Course B (Class IX) Sanskrit (Class IX) Mathematics (Class IX) Science (Class IX) Social Science (Class IX) Download following sample and start practicing to excel in CBSE/NCERT Board exam 9th - English-Comm_Sample Paper_ SA-II_ 2014 9th_Hindi_sample_paper___sa-II_2014 9th - Sanskrit_Sample Paper _ SA-II_ 2014 9th -Science_Sample Paper_ SA-II_ 2014 9th_-social_science_sample_paper___sa-ii__2014     Download File Class-10 Sample Papers for March 2014 CBSE Board Exam X CBSE Board Question Papers 2013 English_Com. Hindi Course_A Mathematics Science       Social_Science