Practice your Chemistry Knowledge !"#$%#&'()$*+,-.#/0*123*2415 H

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Practice your
Chemistry Knowledge
HEPTA INTERACTION QUESTIONS
(7th series)
Topic: Molecular structure and bonding.
Q1.Which of the following is an ionic
compound ?
(a) HCN
(b) CCl4
(c) KCl
(d) CO2
Q2. Which of the following has electrovalent linkage?
(a) MgCl2
(b) CH4
(b) (c) SiCl4
(d) BF3
Q3.On hybridization of one S- and two
P- orbitals we get
(a) Two mutually perpendicular orbitals
(b) two orbitals at 180o
(c) four orbitals directed tetrahydrally
(d) three orbitals in a plane.
Q4.Which of the following has a bond
formed by sp-sp3 hybrid orbitals?
(a) CH3-CCH
(b) CH3-CH=CH-CH3
(c) CH2-CH-CH=CH2
(d) HCCH
Q5.The bond distance is longest in
(a) C2H2
(b) C2H4
(c) C2H6
(d) C2H4Br2
Q6.The species in which the central
atom uses sp3 hybrid orbitals in its
bonding is
(a) PH3
(b) NH3
(c) CH3+
(d) SbH3
Q7.CO2 isostructural with
(a) HgCl2
(b) SnCl2
(c) C2H2
(d) NO2
Q8.The molecule having one unpaired
electron is
(a) NO
(b) CO
+
(c) CN
(d) O2
Q9.The bond between C-atom (1) and
C atom (2) in the compound NC1C2H=CH2
(a) sp2 and sp2
2
(c) sp and sp
(b) sp3 and sp
(d) sp and sp
Q10.CCl4 has zero dipole because of
(a) its planar structure
(b) its regular tetrahedral structure
(c) similar size of C and Cl
(d) None of above
Answers in the 8th series
Ans. to 6th Series
Q1 b, Q2 a, Q3 c, Q4 d, Q5 c, Q6 d, Q7 b,
Q8 c, Q9 c, Q10 a
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in the next series.
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