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SUMMARY:Question No. 8 to 11
DTSTART;TZID=America/Los_Angeles:20260511T190000
DTEND;TZID=America/Los_Angeles:20260511T200000
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DESCRIPTION: Q.8. Match the substances given in Column A with their uses given in Column B. Q. 9. What happens when (a) Dilute sulphuric acid is poured on a copper plate (b) Iron nails are placed in copper sulphate solution Write word equations of the reactions involved. Q. 10. Saloni took a piece of burning charcoal and collected the gas evolved in a test tube. (a) How will she find the nature of the gas ( b) Write down word equations of all the reactions taking place in this process Q. 11 One day Reeta went to a jewellers shop with her mother. Her mother gave old gold jewellery to the goldsmith to polish. The next day when they brought the jewellery back, they found that there was a slight loss in its weight. Can you suggest a reason for the loss of weight

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