Chemistry
(a) Draw the structural formula for the following
- Methoxymethane
- 2-methyl propan-2-ol
- Ethanol
(b) Name the following organic compounds in IUPAC system.
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Chemical Bonding
Answer
(a) Structural formulae are shown below:
(1) Methoxymethane
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(2) 2-methyl propan-2-ol
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(3) Ethanol
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(b) IUPAC names of the organic compounds are:
- 2, 3-dichloropropan-1-oic acid
- Butan-2-ol
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Complete the following by choosing the correct answer from the bracket.
(a) Alkenes differ from alkanes due to the presence of …………… (double/single) bonds.
(b) Down the group, ionisation potential …………… (increases /decreases).
(c) By dissolving aluminium oxide in cryolite a …………… (conducting/non-conducting) solution is produced.
(d) The catalyst used for conversion of ethene to ethane is commonly …………… (iron/nickel).
(e) The gas released when sodium carbonate is added to a solution of sulphur dioxide is …………… (CO2/SO3)
Identify the following.
(a) The acid that is present in vinegar.
(b) A metal which catches fire, when kept in open air.
(c) A sweet smelling compound formed when ethanol reacts with ethanoic acid.
(d) A catalyst used in Haber's process.
(e) An organic compound used for ripening and preservation of fruits.
Draw the electron dot structure for the following.
(a) NH4+
(b) CaO
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(a) Sodium carbonate and sodium sulphate using H2SO4.
(b) Lead (II) oxide and zinc oxide using H2SO4.