NEET
Arjuna NEET (2025)
Organic Chemistry
DPP 01
Some Basic Principles and Techniques (IUPAC Naming)
Q1 Valency of carbon is: Q7 Number of σ&π bonds in ethane, ethene,
(A) 1 (B) 2 ethyne are respectively.
(C) 3 (D) 4 (A) (7, 0)(5, 1)(3, 2)
(B) (7, 0)(7, 1)(7, 2)
Q2 The no. of organic compounds are very large due
(C) (8, 0)(5, 2)(4, 2)
to:
(D) (6, 0)(4, 2)(4, 1)
(A) Catenation
(B) High C-C bond energy Q8 Arrange the following molecules in increasing
(C) Small size order of σ to π bond ratio:
(D) Isomerism
Q3 A double bond consists of:
(A) 1σ and 2π
(B) 2σ
(C) 1σ and 1π
(D) 2π
Q4 In bond-line notation, the carbon is represents
(A) ii < iii < iv < i
by:
(B) ii < iv < iii < i
(A) Point (B) Line
(C) iii < ii < i < iv
(C) Dotted line (D) Arrow
(D) ii < iii < i < iv
Q5 Number of hydrogen atoms in the given
Q9 Which of the following is the first
compound is:
organic compound formed in laboratory.
(A) Acetic Acid (B) Methane
(C) Urea (D) Benzene
Q10 Number of σ and π bonds in the following
molecule?
(A) 8 (B) 10
(C) 12 (D) 14
Q6 In benzene molecule there are 3π-bonds and:
(A) 10 sigma bonds (B) 12 sigma bonds
(C) 3 sigma bonds (D) 6 sigma bonds (A) 19, 7 (B) 20, 7
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(C) 19, 6 (D) 18, 6 (D) sp − sp 3
Q11 Which of the following is not the bondline Q15
structure of
Total number of sp Hybridized in above
compound
(A) (A) 4 (B) 5
(C) 6 (D) 7
(B) Q16 Number of sp 2 hybrid carbon atoms present in
aspartame is ______.
(C)
(D)
(A) 7 (B) 8
Q12 In the following compound, the total number (C) 9 (D) 10
of sigma bond x .
Find the value of (x − 10) ?
(A) 3 (B) 4
(C) 5 (D) 6
Q13 What type of hbridisation in
CH3 − CH = C = CH2 molecule?
(A) sp 3 , sp 3 , sp 2 , sp
(B) sp 3 , sp 2 , sp, sp 3
(C) sp 3 , sp 2 , sp, sp 2
(D) None of these
Q14 H − C ≡ C − HC = CH2 compound have
hybridisation of C − C single bond is:
(A) sp 3 − sp 3
(B) sp 3 − sp 2
(C) sp − sp 2
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Answer Key
Q1 (D) Q9 (C)
Q2 (A) Q10 (C)
Q3 (C) Q11 (A)
Q4 (A) Q12 (C)
Q5 (C) Q13 (C)
Q6 (B) Q14 (C)
Q7 (A) Q15 (B)
Q8 (C) Q16 (C)
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