what changes in clothing do we make according to climate? Write four sentence
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1.How is that we can use detergents for washing clothes even when the water is hot but not soap?What change has been made in the composition of detergents to make them biodegradable?
2.(a)Name the product formed when ethanol is boiled with an excess of acidified potassium dichromate solution.
(b)What type of reaction occurs between ethene and hydrogen gas?
3.Can you compare the ph values of dilute hydrochloric acid and dilute acetic acid using (a)blue litmus paper (b)universal indicator.Give reasons.
2.(a)Name the product formed when ethanol is boiled with an excess of acidified potassium dichromate solution.
(b)What type of reaction occurs between ethene and hydrogen gas?
3.Can you compare the ph values of dilute hydrochloric acid and dilute acetic acid using (a)blue litmus paper (b)universal indicator.Give reasons.
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