Chemistry
Give equations for the conversions of – Ethene, Ethyne to:
| Ethene | Ethyne | |
|---|---|---|
| (a) Ethane | (a) Ethane [2 steps ] | by - Catalytic hydrogenation - H2 |
| (b) 1,2 dichloroethane | (b) 1,1,2,2 tetrachloroethane [2 steps] | by- Halogenation - Cl2 |
| (c) 1,2 dibromoethane | (c) 1,1,2,2 tetrabromoethane [2 steps] | - Br2 |
| (d) 1,2 diiodoethane | (d) 1,2 diiodoethene | - I2 |
| (e) Bromoethane/Chloroethane | (e) 1,1 -dibromo & 1,1-dichloroethane | by- Halogen acids - HBr/HCl by - Polymerization |
| (f) Polyethylene | (f) Copper or silver Acetylide | by Ammoniacal - CuCl/AgNO3 |
Related Questions
Give equations for the conversions of – Methane, Ethane:
Methane to Ethane to (a) Carbon tetrachloride (a) Hexachloro ethane by - Substitution [diffused sunlight] (b) Carbon dioxide (b) Carbon dioxide by - Oxidation - Complete (c) Methanol
to
Methanal
to
Methanoic acidEthanol
to
Ethanal
to
Ethanoic acidby - Oxidation
(i) catalytic using - catalyst copper [Cu]
(ii) Controlled using acidified K2Cr2O7(d) Methnal Ethanal by- Oxidation - Catalytic - using catalyst MoO (e) Ethyne Ethene by - Pyrolysis [dehydrogenation] Give equations for the conversions of – Ethanol and Ethanoic Acid to:
Ethanol [ethyl alcohol] Ethanoic Acid [acetic acid] (a) Carbon dioxide - by burning (a) Sodium acetate - using alkali - NaOH (b) Ethanal
to
Ethanoic acid - by oxidation using acidified K2Cr2O7(b) Calcium acetate - using alkali - Ca(OH)2 (c) Sodium ethaoxide - using - sodium (c) Ammonium acetate - using alkali - NH4OH (d) Ethyl ethanoate - using - ethanoic acid and conc. H2SO4 (d) Ethyl ethanoate -using - ethanol and conc. H2SO4 [ethyl acetate] (e) Ethene - using conc. H2SO4 at 170 °C Give reasons for:
(i) alkanes are said to be saturated organic compounds
(ii) alkenes are known as olefins
(iii) alkenes are more reactive than alkanes
(iv) ethanoic acid is known as an aliphatic monocarboxylic acid.
Give balanced equations for the laboratory preparations of - Alkanes, Alkenes, Alkynes, Alcohols and Acids.
Sl.
No.Compound from: by/from: (a) Methane [CH4] Sodium ethanoate [sodium acetate] by -decarboxylation (b) Methane [CH4] Iodo methane [methyl iodide] from -an alkylhalide (c) Ethane [C2H6] Sodium propanoate [sodium propionate] by -decarboxylation (d) Ethane [C2H6] Bromo ethane [ethyl bromide] from -alkylhalide (e) Ethene [C2H4] from ethanol [ethyl alcohol] by -dehydration (f) Ethene [C2H4] Bromo ethane [ethyl bromide] by - dehydrohalogenation (g) Ethyne [C2H2] from calcium carbide from -a calcium compound (h) Ethyne [C2H2] 1,2, dibromoethane [ethylene dibromide] by -dehydrohalogenation (i) Ethanol [C2H5OH] Bromo ethane [ethyl bromide] by - hydrolysis of alkylhalide (j) Ethanol [C2H5OH] Ethene [ethylene] by - hydration of ethene (k) Ethanoic acid [CH3COOH] Ethanol [ethyl alcohol] by - oxidation of alcohol