Carbon and its Compounds — Science STD 10 — Question

A first-aid manual suggests that vinegar should be used to treat wasp stings and baking soda for bee stings. What does this information tell you about the chemical nature of:

1. Wasp stings?
2. Bee stings?

The following reaction takes place when aluminium powder is heated with MnO₂.
3MnO₂(s) + 4Al(s) → 3Mn(l) + 2Al₂O₃(l) + Heat

1. Is aluminium getting reduced?
2. Is MnO₂ getting oxidised?

Which of the following hydrocarbons can decolourise bromine water and which cannot? Why?
C₆H₁₂, C₆H₁₄, C₆H₁₀

List two observations which you make when you add a pinch of sodium hydrogen carbonate to acetic acid in a test tube. Write chemical equation for the reaction that occurs.

What is meant by homologous series?

Name the functional groups present in the following compounds:

1. CH₃COOH
2. CH₃CH₂CHO
3. C₂H₅OH
4. CH₃COCH₂CH₃

What happens when silver nitrate solution is added to sodium chloride solution?

1. Write the equation for the reaction which takes place.
2. Name the type of reaction involved.

What happens when an acid reacts with a metal carbonate? Explain with the help of an example.
Write chemical equation of the reaction involved.

Write the neutralisation reaction between acids and bases in terms of the ions involved.

State two important uses of bleaching powder.