Chapter 3-5 Student Chemistry Worksheet - Class X, Central Board Of Secondary Education Page 14
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30Chapter 4 - Carbon and its Compounds
Formative Assessment Manual for Teachers
●
A Triple bond represented by three lines between the two atoms, is formed by sharing
3 pairs of electrons between two atoms.
Assessment Parameters:
Question 1 - 8
carries one mark each.
Question 9
carry 2 marks.
Student Worksheet
Time: 10 minutes
INSTRUCTIONS:
Look at the following diagram showing electronic dot structure carefully and answer their questions
that follow:
Figure 4.3, 4.4, 4.5 page 44 of class X, NCERT, Science Text Book.
Q1. Name the molecule whose electronic dot structure is depicted in diagram I and III
Q2. Identify the type of bond being formed in the molecules shown above.
Q3. How many pairs of electrons are being shared between the two atoms of oxygen?
Q4. How many bonds are formed between two atoms of Oxygen?
Q5. Write down the structural formula of the compound being shown in diagram III.
Q6. Write the electronic dot structure of Methane.
Q7. Write the electronic dot structure of ethene
Q8. Write the electronic dot structure of propane
Q9. Give the number of different type of bonds present in one molecule of propane.
44
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