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materials one by one. If combustion takes place mark the material combustible, otherwise mark it non-combustible (Table 6.1). (a) (b) (c) Fig. 6.2: Experiment to show that air is essential for burning Rightly so. In our body food is broken down by reaction with oxygen and heat is produced. We learnt that in Class VII. Can you name some more
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www.ncert.nic.in317 Alcohols, Phenols and Ethers Allylic and benzylic alcohols may be primary, secondary or tertiary. (ii) Compounds containing C OHsp2 − bond: These alcohols contain —OH group bonded to a carbon-carbon double bond i.e., to a
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www.ncert.nic.inForeword What is ‘Education’? What is its primary purpose, and what is not? Which approaches support it, and at which levels of cognition? So many basic questions that many of our ‘trained
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