Section A: Nomenclature (Naming)
Name the following compounds according to IUPAC rules:
- $CH_3-CH_2-Br$
- $H-CHO$
- $CH_3-CH_2-OH$
- $CH_3-CO-CH_3$
- $CH_3-CH_2-COOH$
- $CH_3-CH=CH_2$
- $CH_3-C \equiv CH$
- $CH_3-Cl$
- $C_6H_6$ (Cyclic unsaturated)
- $C_2H_4$
Section B: Balancing & Completing Reactions
Complete the following chemical reactions:
- $CH_4 + O_2 \longrightarrow$ __________ + __________ + Heat.
- $CH_3CH_2OH \xrightarrow{Alk. KMnO_4 + Heat}$ __________
- $CH_2=CH_2 + H_2 \xrightarrow{Ni}$ __________
- $2Na + 2CH_3CH_2OH \longrightarrow$ __________ + $H_2$.
- $CH_3COOH + NaOH \longrightarrow$ __________ + $H_2O$.
- $CH_3COOH + C_2H_5OH \xrightarrow{Acid}$ __________ + $H_2O$.
- $CH_3COOH + Na_2CO_3 \longrightarrow$ __________ + $H_2O$ + __________.
- $CH_3COOC_2H_5 + NaOH \longrightarrow$ __________ + __________. (Saponification)
- $CH_3CH_2OH \xrightarrow{Hot Conc. H_2SO_4}$ __________ + $H_2O$.
- $CH_4 + Cl_2 \xrightarrow{Sunlight}$ __________ + HCl.
Section C: Electron Dot Structures
Draw the Electron Dot Structures for:
- Ethanoic Acid ($CH_3COOH$)
- Hydrogen Sulphide ($H_2S$)
- Propane ($C_3H_8$)
- Fluorine molecule ($F_2$)
- Carbon Dioxide ($CO_2$)
Section D: Conceptual Questions
- Why is the conversion of ethanol to ethanoic acid considered an oxidation reaction?
- Why do unsaturated hydrocarbons burn with a yellow flame with lots of black smoke?
- Carbon cannot form ionic bonds. Give two reasons why.
- What are oxidizing agents? Name two oxidizing agents used in organic chemistry.
- What is the role of concentrated Sulphuric acid in the dehydration of ethanol?
- Explain the cleansing action of soap with the help of a diagram. (Draw Micelle).
- Why does micelle formation take place when soap is added to water? Will a micelle be formed in other
solvents such as ethanol?
- Why are detergents better than soaps for laundry in hard water?
- Differentiate between soaps and detergents on the basis of their chemical composition.
- Why does carbon form a large number of compounds? (Two properties).