13 Questions
Match the pairs. Group ‘A’ Group ‘B’ C2H6
Saturated hydrocarbon
C2H2
Triple bond
CH4O
Molecular formula of an alcohol
C3H6
Unsaturated hydrocarbon
Draw an electron dot structure of the following molecules. (Without showing the circles) a. Methane - molecular formula - CH4
....H - C - H....
B. Ethane - molecular formula – C2H4
..H - C - C - H..
C. Methanol - molecular formula – CH3OH
..H - C - H.. | ..H - C - O - H..
D. Water - molecular formula - H2O
..H | ..O - H..
Draw all possible structural formulae of compounds from their molecular formula given below. a. C3H8
CH3CH2CH3
B. C4H10
CH3CH2CH2CH3
C. C3H4
H2C=CH-CH3 | CH3-CH=C=CH2
Explain the following terms with example. a. Structural isomerism
The phenomenon where compounds have different structural formulae but the same molecular formula is called structural isomerism. e.g., Structural formula of compound C4H10
B. Covalent bond
The chemical bond formed by sharing of two valence electrons between two atoms is called a covalent bond. e.g., Covalent bond is formed between oxygen and each of the hydrogen in a water molecule (H2O). Each of the covalent bonds contains two electrons – one from a hydrogen atom and one from the oxygen atom. Both atoms share the electrons.
Test your knowledge of carbon compounds with this quiz. Match the pairs of compounds and draw electron dot structures for different molecules.
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