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question_answer1)
Triple bond in ethyne is formed from [MP PMT 1990; NCERT 1979; EAMCET 1978; AMU 1985; CPMT 1988; MADT Bihar 1982; MH CET 2000]
A)
Three sigma bonds done
clear
B)
Three pi bonds done
clear
C)
One sigma and two pi bonds done
clear
D)
Two sigma and one pi bond done
clear
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question_answer2)
The bond in the formation of fluorine molecule will be [MP PMT 1987]
A)
Due to \[PC{{l}_{5}}\] overlapping done
clear
B)
Due to \[s-p\] overlapping done
clear
C)
Due to \[{{H}_{2}}{{O}_{2}}>{{O}_{3}}>{{O}_{2}}\] overlapping done
clear
D)
Due to hybridization done
clear
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question_answer3)
Which type of overlapping results the formation of a \[\pi \]bond [DPMT 1981]
A)
Axial overlapping of \[s-s\] orbitals done
clear
B)
Lateral overlapping of \[p-p\]orbitals done
clear
C)
Axial overlapping of \[p-p\] orbitals done
clear
D)
Axial overlapping of \[s-p\] orbitals done
clear
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question_answer4)
The number and type of bonds between two carbon atoms in calcium carbide are [AIEEE 2005]
A)
One sigma, one pi done
clear
B)
One sigma, two pi done
clear
C)
Two sigma, one pi done
clear
D)
Two singma, two pi done
clear
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question_answer5)
In a double bond connecting two atoms, there is a sharing of [CPMT 1977, 80, 81; NCERT 1975; Bihar MEE 1980; MP PET 1999]
A)
2 electrons done
clear
B)
1 electron done
clear
C)
4 electrons done
clear
D)
All electrons done
clear
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question_answer6)
Strongest bond is [DPMT 1990]
A)
\[C-C\] done
clear
B)
\[C=C\] done
clear
C)
\[C\equiv C\] done
clear
D)
All are equally strong done
clear
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question_answer7)
\[\pi \]bond is formed [JIPMER 2002]
A)
By overlapping of atomic orbitals on the axis of nuclei done
clear
B)
By mutual sharing of pi electron done
clear
C)
By sidewise overlapping of half filled p-orbitals done
clear
D)
By overlapping of s-orbitals with p-orbitals done
clear
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question_answer8)
The double bond between the two carbon atoms in ethylene consists of [NCERT 1981; EAMCET 1979]
A)
Two sigma bonds at right angles to each other done
clear
B)
One sigma bond and one pi bond done
clear
C)
Two pi bonds at right angles to each other done
clear
D)
Two pi bonds at an angle of \[{{60}^{o}}\] to each other done
clear
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question_answer9)
In the series ethane, ethylene and acetylene, the \[C-H\] bond energy is [NCERT 1977]
A)
The same in all the three compounds done
clear
B)
Greatest in ethane done
clear
C)
Greatest in ethylene done
clear
D)
Greatest in acetylene done
clear
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question_answer10)
In a sigma bond
A)
Sidewise as well as end to end overlap of orbitals take place done
clear
B)
Sidewise overlap of orbitals takes place done
clear
C)
End to end overlap of orbitals takes place done
clear
D)
None of the above done
clear
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question_answer11)
The number of sigma and pi bonds in 1-butene-3-yne are [IIT 1989]
A)
5 sigma and 5 pi done
clear
B)
7 sigma and 3 pi done
clear
C)
8 sigma and 2 pi done
clear
D)
6 sigma and 4 pi done
clear
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question_answer12)
The most acidic compound among the following is [MP PET 1993]
A)
\[C{{H}_{3}}C{{H}_{2}}OH\] done
clear
B)
\[{{C}_{6}}{{H}_{5}}OH\] done
clear
C)
\[C{{H}_{3}}COOH\] done
clear
D)
\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}OH\] done
clear
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question_answer13)
Which of the following is not correct [CBSE PMT 1990]
A)
A sigma bond is weaker than \[\pi \]bond done
clear
B)
A sigma bond is stronger than \[\pi \]bond done
clear
C)
A double bond is stronger than a single bond done
clear
D)
A double bond is shorter than a single bond done
clear
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question_answer14)
Strongest bond formed, when atomic orbitals
A)
Maximum overlap done
clear
B)
Minimum overlap done
clear
C)
Overlapping not done done
clear
D)
None of them done
clear
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question_answer15)
The \[p-p\] orbital overlapping is present in the following molecule [MP PET 1994]
A)
Hydrogen done
clear
B)
Hydrogen bromide done
clear
C)
Hydrogen chloride done
clear
D)
Chlorine done
clear
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question_answer16)
In \[{{N}_{2}}\]molecule, the atoms are bonded by [MP PET 1996; UPSEAT 2001]
A)
One s, Two p done
clear
B)
One s, One p done
clear
C)
Two s, One p done
clear
D)
Three s bonds done
clear
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question_answer17)
In which of following there exists a \[p\pi -d\pi \] bonding [AFMC 2001]
A)
Diamond done
clear
B)
Graphite done
clear
C)
Dimethyl amine done
clear
D)
Trisilylamine done
clear
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question_answer18)
Number of bonds in \[S{{O}_{2}}\] [DCE 2001]
A)
Two s and two p done
clear
B)
Two s and one p done
clear
C)
Two s, two p and one lone pair done
clear
D)
None of these done
clear
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question_answer19)
Which of the following has \[p\pi -d\pi \] bonding [CBSE 2002]
A)
\[NO_{3}^{-}\] done
clear
B)
\[CO_{3}^{-2}\] done
clear
C)
\[BO_{3}^{-3}\] done
clear
D)
\[SO_{3}^{-2}\] done
clear
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question_answer20)
Number of sigma bonds in \[{{P}_{4}}{{O}_{10}}\] is [AIEEE 2002]
A)
6 done
clear
B)
7 done
clear
C)
17 done
clear
D)
16 done
clear
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