Download or Preview Chemistry 12 mcqs with answers chapter 7 both MDCAT, ECAT Entry Test and F.Sc Board Exams.
IMPORTANCE OF THESE MCQS
It is tough and difficult task to solve 2nd year chemistry mcqs . Students
must have proper preparation of 2nd year chemistry mcqs for excellent
marks in chemistry 12. All the important mcqs related to chapter 7
"Fundamental Principles of Organic Chemistry" of 2nd year Chemistry are
here for you. These questions are taken from past papers of 2nd year
chemistry of all Punjab Board of Pakistan as ;
Bahawalpur Board
D.G.Khan Board
Faisalabad Board
Gujranwala Board
Lahore Board
Multan Board
Rawalpindi Board
Content is created and designed with intense care and diligence.
These questions (MCQs) are top repetitive in previous papers. Each
question has a detailed answer explanation. In this way you learn from
your mistakes
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students that are better at chemistry 12 exam preparation. These
Questions are based on the current Chemistry Class 12 syllabus according
to Punjab Textbook Board.
About This Chapter
Chapter no. 7 "Fundamental Principles of Organic Chemistry" of 2nd year
chemistry enables the students. Students learn about importance of
organic chemistry in life. Students learn about the sources of organic
compounds like coal, petroleum and natural gas. Students also
learn refining, reforming and cracking of petroleum. And students also
learn classification of organic compounds. Students are provided with
knowledge of functional groups overview. Students learn isomerism and
cis-trans isomerism. Students also learn hybridization theory. This Post
"Chemistry 12 mcqs with answers pdf chapter 7" covers all important mcqs
that are top repetitive in past papers relevant to above mentioned
topics.
👉For Answers of following questions click the show answer button.
1. Who synthesized urea from ammonium cyanate?
(A) Wohler
(B) Kolbe
(C) Lavoisier
(D) Berzelius
(A) Wohler
2. Formula of marsh gas is :
(A) CH4
(B) C2H6
(C) C3H8
(D) C4H10
(A) CH4
3. The process used to improve the quality of gasoline is:
(A) Combination
(B) Composition
(C) Reforming
(D) Cracking
(C) Reforming
4. In t-butyl alcohol, tertiary carbon is bonded to
(A) 2 H atoms
(B) 3 H atoms
(C) 1 H atom
(D) No H atom
(D) No H atom
5. -SH functional group is called:
(A) Cyano
(B) Mercapto
(C) Nitro
(D) Carboxyl
(B) Mercapto
6. Which one is heterocyclic compound of oxygen?
(A) Pyridine
(B) Pyrrole
(C) Furan
(D) Thiophen
(C) Furan
7. Linear shape is associated with set of hybrid orbitals:
(A) sp
(B) sp2
(C) dsp2
(D) sp3
(A) sp
8. Which set of hybrid orbital has planner triangular shape with 120o
bond angle:
(A) sp
(B) sp2
(C) dsp2
(D) sp3
(B) sp2
9. Carbon atom of carboxyl group is
(A) sp hybridized
(B) sp2 hybridized
(C) sp3 hybridized
(D) dsp2 hybridized
(B) sp2 hybridized
10. Ethers show the phenomenon of :
(A) Position isomerism
(B) Chain isomerism
(C) Functional group isomerism
(D) Metamerism
(D) Metamerism
11. A double bond consists of :
(A) Two pi bonds
(B) Two sigma bonds
(C) One sigma and one pi bond
(D) None of these
(C) One sigma and one pi bond
12. Tautomerism arises due to shifting of :
(A) Pi electrons
(B) Sigma electrons
(C) Neutrons
(D) Protons
(D) Protons
13. The state of hybridization of carbon atom in methane is
(A) sp2
(B) sp3
(C) dsp2
(D) sp
(B) sp3
14. The octane number is 100 for
(A) Neo-pentane
(B) Neo-hexane
(C) Neo-octant
(D) Iso-octane
(D) Iso-octane
15. Pentane has a number of isotopes:
(A) 3
(B) 4
(C) 5
(D) 6
(A) 3
16. The state of hybridization in ethane is :
(A) sp
(B) sp2
(C) sp3
(D) dsp2
(C) sp3
17. Gasoline is mixture of hydrocarbons containing carbon atoms:
(A) C2 - C5
(B) C5 - C7
(C) C7 - C10
(D) C15 - C17
(C) C7 - C10
18. When petroleum is heated, which is obtained first:
(A) Petroleum ether
(B) Lubricating oil
(C) Diesel
(D) Kerosene
(A) Petroleum ether
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