Name _________________________
Class: 9th Sub Chem Test # 21
Total Marks __20___ OB Marks ______
Q1:
Encircle the right answer
1 The most essential element for organic
compound is?
2 Which of the following is considered as
parent organic compound?
3
Carbon is present in periodic table?
05
Carbon
Hydrogen
Nitrogen
Oxygen
Alkanes
Alkenes
Alkynes
Aromatic
Left side
Right side
Middle
None of
these
4
Which is the simplest alkanes?
CH4
C3H8
C2H2
C2H4
5
Condense formula of ethane is?
C3H8
C2H6
H3CCH3
None of
these
Q2:
1
2
3
4
5
Q3:
1
Answer the following question.
What are hydrocarbons with example?
Which is simplest alkanes give its uses?
Why alkanes are called paraffins?
Describe three parts of IUPAC name of organic compound?
Write the dot and cross structure of methane, ethane and propane?
Answer the following question.
Explain IUPAC system of nomenclature for alkanes?
10
05