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8. Why does dry HCL gas not show acidic behaviour in the ... |
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(II) Preparing a soda-acid fire extinguisher The reaction... |
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CHAPTER 3 MetalsandNon-metals n Class IX you have learnt ... |
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Q U E S T I O N S 1. Why is sodium kept immersed in keros... |
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You will find that metals are generally har d. The har dn... |
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Activity 3.6 ■ Set up an electric circuit as shown in Fig... |
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points but gallium and caesium have very low melting poin... |
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3.2.1 What happens when Metals are burnt in Air? You have... |
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We have observed in Activity 3.9 that all metals do not r... |
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Figure 3.3Action of steam on a metal Metals react with wa... |
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Metal + Dilute acid → Salt + Hydrogen But do all metals r... |
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■ In which test tube did you find that a reaction has occ... |
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| Chapter 3 - First Flight |
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Table 3.3 Electronic configurations of some elements Type... |
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