Butanone is a four-carbon compound with the functional group
Ethane, with the molecular formula C2H6 has
Give two important uses of washing soda and baking soda.
What is a neutralization reaction? Give two examples.
Plaster of Paris should be stored in a moisture-proof container. Explain why?
A milkman adds a very small amount of baking soda to fresh milk. (a) Why does he shift the pH of the fresh milk from 6 to slightly alkaline? (b) Why does this milk take a long time to set as curd?
Fresh milk has a pH of 6. How do you think the pH will change as it turns into curd? Explain your answer.
Equal lengths of magnesium ribbons are taken in test tubes A and B. Hydrochloric acid (HCl) is added to test tube A, while acetic acid (CH3COOH) is added to test tube B. Amount and the concentration taken for both the acids are the same. In which test tube will the fizzing occur more vigorously and why?
Five solutions A,B,C,D and E when tested with universal indicator showed pH of 4, 1, 11, 7, and 9, respectively. Which solution is (a) neutral? (b) strongly alkaline? (c) strongly acidic? (d) weakly acidic? (e) weakly alkaline? Arrange the pH in increasing order of hydrogen-ion concentration.
Why do acids not show acidic behaviour in the absence of water?
Why does distilled water not conduct electricity, whereas rain water does?
Compounds such as alcohols and glucose also contain hydrogen but are not categorized as acids. Describe an Activity to prove it.