Carbon and its Compounds — Science STD 10 — Question

Write the molecular formula of the third member of the homologous series of carbon compounds with general formula C_nH_2n+1OH.

Write balanced chemical equation from the following information:
An aqueous calcium hydroxide solution (lime water) reacts with carbon dioxide gas to produce a solid calcium carbonate precipitate and water.

Write the electron arrangement in (i) a magnesium atom, and (ii) an oxygen atom.

Select saturated hydrocarbons from the following:
C₃H₆ ; C₅H₁₀ ; C₄H₁₀ ; C₆H₁₄ ; C₂H₄

Name one chemical compound which can be used to distinguish between ethanol and ethanoic acid.

The molecular formula of an organic compound is C₁₈H₃₆. Name its homologous series.

If water contains dissolved calcium hydrogen carbonate then out of soaps and synthetic detergents, which one will you use for cleaning the dirt of clothes?

What happens when carbon burns in air? Write the chemical equation of the reaction which takes place.

Which of the two is better for our health butter or vegetable oil? Why?