Chapter 3-5 Student Chemistry Worksheet - Class X, Central Board Of Secondary Education Page 17
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30Formative Assessment Manual for Teachers
Carbon and its Compounds - Chapter 4
J.
Reaction of ethanoic acid with sodium hydroxide.
K.
Reaction of ethanoic acid with Sodium bicarbonate
Suggested Remediation:
●
Some .students may find it difficult to write the correct formula of an organic compound.
Teacher may encourage the students to write the general formulae and the functional
groups of organic compounds in their syllabus on a chart and revisit the naming of
organic compounds.
●
Some students may find it difficult to recall the products of the chemical reaction
or balance the equation. The teacher may ask them to tabulate all the reactions of a
particular functional group together and draw correlations in the reactions. Correlations
serve as a memory tool.
Carbon and its Compounds
Chapter 4
Assessment technique: Content Based (or Writing chemical formula)
Objectives: To enable the students to
●
Write down the molecular formula of hydrocarbons.
●
Recognise the functional group through the name of the hydrocarbon.
●
Appreciate that if molecular formula and functional group present in the compound is
known, structure of the compound can be written.
Task:
Individual
Procedure:
This worksheet may be given to the students after teaching them the nomenclature of the
hydrocarbons and skill of drawing the structure of hydrocarbon.
Assessment parameter: Every correct answer carries 1 mark.
Student Worksheet
Time: 10 min.
Instructions:
Write the molecular formula and draw the structure for the following compounds.
47
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