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Chemistry X | CHAPTER – 5 | Periodic Classification of Elements
CHAPTER – 5 Periodic Classification of Elements In Class IX we have learnt that matter around us is present in the form of elements, compounds and mixtures and the elements contain atoms of only one type. Do you know how many elements are known till date? At present, 114 elements are known to us. Around…
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Chemistry X | Carbon and its Compounds | SOAPS AND DETERGENTS
SOAPS AND DETERGENTS Activity 4.10 Take about 10 mL of water each in two test tubes. Add a drop of oil (cooking oil) to both the test tubes and label them as A and B. To test tube B, add a few drops of soap solution. Now shake both the test tubes vigourously for the…