Q. 60
You are given an organic compound having the molecular formula C3H8• Give the name and formula of the compound formed:
(a) when one H atom of C3H8 is replaced by a Cl atom.
(b) when one H atom of C3H8 is replaced by OH group.
(c) when one H atom of C3H8 is replaced by a CHO group.
(d) when one H atom of C3H8 is replaced by a COOH group.
(e) when two H atoms joined to the middle carbon atom of C3H8 are replaced by one O atom.
Answer :
(a) Chloropropane, CH3-CH2-CH2-Cl
(b) Propanol, CH3-CH2-CH2-OH
(c) Butanal, CH3-CH2-CH2-CHO
(d) Butanoic acid, CH3-CH2-CH2-COOH
(e) Propanone, CH3-CO-CH3
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PREVIOUSA colourless organic liquid X of molecular formula C2H4O2 turns blue litmus to red. Another colourless organic liquid Y of molecular formula C3H6O has no action on any litmus but it is used as a nail polish remover. A yet another colourless organic liquid Z of molecular formula C3H6O has also no action on litmus but it is used in tincture of iodine.
(a) Name the liquid X. To which homologous series does it belong? Give the name of another member of this homologous series.
(b) Name the liquid Y. To which homologous series does it belong? Write the name of another member of this homologous series.
(c) Can you name an organic compound having the same molecular formula as liquid Y but which belongs to a different homologous series? What is this homologous series?
(d) Name the liquid Z. To which homologous series does it belong? Write the name of another member of this homologous series.NEXTName the gas evolved when ethanoic acid is added to sodium carbonate. How would you prove the presence of this gas?
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