-
question_answer1)
The structure of \[{{\left[ Cu\,{{\left( {{H}_{2}}O \right)}_{4}} \right]}^{++}}\] ion is [NCERT 1983; MP PMT 1983]
A)
Square planar done
clear
B)
Tetrahedral done
clear
C)
Distorted rectangle done
clear
D)
Octahedral done
clear
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question_answer2)
The bond angle in \[P{{H}_{3}}\]would be expected to be close to
A)
\[{{90}^{o}}\] done
clear
B)
\[{{105}^{o}}\] done
clear
C)
\[{{109}^{o}}\] done
clear
D)
\[{{120}^{o}}\] done
clear
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question_answer3)
In which molecule are all atoms coplanar [MP PMT 1994]
A)
\[O_{2}^{+}\] done
clear
B)
\[B{{F}_{3}}\] done
clear
C)
\[P{{F}_{3}}\] done
clear
D)
\[N{{H}_{3}}\] done
clear
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question_answer4)
Which has the least bond angle [NCERT 1973; DPMT 1990; CBSE PMT 1990; UPSEAT 2003]
A)
\[N{{H}_{3}}\] done
clear
B)
\[Be{{F}_{2}}\] done
clear
C)
\[{{H}_{2}}O\] done
clear
D)
\[C{{H}_{4}}\] done
clear
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question_answer5)
In compound \[X\], all the bond angles are exactly \[{{109}^{o}}28',\,\,X\] is [CBSE PMT 1991]
A)
Chloromethane done
clear
B)
Iodoform done
clear
C)
Carbon tetrachloride done
clear
D)
Chloroform done
clear
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question_answer6)
The shape of \[SO_{4}^{2-}\]ion is [CPMT 1982; DPMT 1983, 84, 96; Bihar MEE 1997]
A)
Square planar done
clear
B)
Tetrahedral done
clear
C)
Trigonal bipyramidal done
clear
D)
Hexagonal done
clear
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question_answer7)
Which of the following molecules has one lone pair of electrons on the central atom [EAMCET 1980; AMU 1982; MNR 1989]
A)
\[{{H}_{2}}O\] done
clear
B)
\[N{{H}_{3}}\] done
clear
C)
\[C{{H}_{4}}\] done
clear
D)
\[PC{{l}_{5}}\] done
clear
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question_answer8)
Of the following compounds, the one having a linear structure is [NCERT 1981; CPMT 1991; DPMT 1982; MP PMT 1985; AIIMS 1996]
A)
\[N{{H}_{2}}\] done
clear
B)
\[C{{H}_{4}}\] done
clear
C)
\[{{C}_{2}}{{H}_{2}}\] done
clear
D)
\[{{H}_{2}}O\] done
clear
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question_answer9)
\[Xe{{F}_{6}}\] is
A)
Octahedral done
clear
B)
Distorted octahedral done
clear
C)
Planar done
clear
D)
Tetrahedral done
clear
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question_answer10)
Which has maximum bond angle [CPMT 1993]
A)
\[CH{{F}_{3}}\] done
clear
B)
\[CHC{{l}_{3}}\] done
clear
C)
\[CHB{{r}_{3}}\] done
clear
D)
All have maximum bond angle done
clear
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question_answer11)
Of the following species the one having a square planar structure is [NCERT 1981; MP PMT 1994]
A)
\[NH_{4}^{+}\] done
clear
B)
\[BF_{4}^{-}\] done
clear
C)
\[Xe{{F}_{4}}\] done
clear
D)
\[SC{{l}_{4}}\] done
clear
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question_answer12)
In which of the following is the angle between the two covalent bonds greatest [NCERT 1975; AMU 1982; MNR 1987; IIT 1981; CPMT 1988; MP PMT 1994]
A)
\[C{{O}_{2}}\] done
clear
B)
\[C{{H}_{4}}\] done
clear
C)
\[N{{H}_{3}}\] done
clear
D)
\[{{H}_{2}}O\] done
clear
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question_answer13)
As the s-character of hybridized orbital decreases, the bond angle [DPMT 1986]
A)
Decreases done
clear
B)
Increases done
clear
C)
Does not change done
clear
D)
Becomes zero done
clear
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question_answer14)
\[Xe{{F}_{2}}\] molecule is [BHU 1982]
A)
Linear done
clear
B)
Triangular planar done
clear
C)
Pyramidal done
clear
D)
Square planar done
clear
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question_answer15)
Of the following sets which one does NOT contain isoelectronic species [AIEEE 2005]
A)
\[PO_{4}^{3-},\,SO_{4}^{2-},\,ClO_{4}^{-}\] done
clear
B)
\[C{{N}^{-}},\,{{N}_{2}},\,C_{2}^{2-}\] done
clear
C)
\[SO_{3}^{2-},\,CO_{3}^{2-},\,NO_{3}^{-}\] done
clear
D)
\[BO_{3}^{3-},\,CO_{3}^{2-},\,NO_{3}^{-}\] done
clear
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question_answer16)
A molecule which contains unpaired electrons is [NCERT 1982]
A)
Carbon monoxide done
clear
B)
Molecular nitrogen done
clear
C)
Molecular oxygen done
clear
D)
Hydrogen peroxide done
clear
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question_answer17)
\[{{H}_{2}}O\]is [MADT Bihar 1983]
A)
A linear triatomic molecule done
clear
B)
A bent (angular) triatomic molecule done
clear
C)
Both of these done
clear
D)
None of these done
clear
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question_answer18)
Bond angle between two hybrid orbitals is \[{{105}^{o}}.%\] s-orbital character of hybrid orbital is [MP PMT 1986]
A)
Between \[20-21%\] done
clear
B)
Between \[19-20%\] done
clear
C)
Between \[21-22%\] done
clear
D)
Between \[22-23%\] done
clear
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question_answer19)
The bond angle between \[{{N}_{x}}\] in ice is closest to [CPMT 1989; UPSEAT 2002]
A)
\[{{120}^{o}}28'\] done
clear
B)
\[{{60}^{o}}\] done
clear
C)
\[{{90}^{o}}\] done
clear
D)
\[{{105}^{o}}\] done
clear
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question_answer20)
Which of the following molecules does not have a linear arrangement of atoms [CBSE PMT 1989]
A)
\[{{H}_{2}}S\] done
clear
B)
\[{{C}_{2}}{{H}_{2}}\] done
clear
C)
\[Be{{H}_{2}}\] done
clear
D)
\[C{{O}_{2}}\] done
clear
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question_answer21)
\[BC{{l}_{3}}\]is a planar molecule while \[NC{{l}_{3}}\] is pyramidal, because [CBSE PMT 1995]
A)
\[BC{{l}_{3}}\]has no lone pair of electrons but \[NC{{l}_{3}}\]has a lone pair of electrons done
clear
B)
\[B-Cl\] bond is more polar than \[N-Cl\] bond done
clear
C)
Nitrogen atom is smaller than boron atom done
clear
D)
\[N-Cl\] bond is more covalent than \[B-Cl\] bond done
clear
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question_answer22)
The isoelectronic pair is [AIIMS 2005]
A)
\[C{{l}_{2}}O,\ ICl_{2}^{-}\] done
clear
B)
\[ICl_{2}^{-},Cl{{O}_{2}}\ \] done
clear
C)
\[IF_{2}^{+},\ I_{3}^{-}\] done
clear
D)
\[ClO_{2}^{-},\ CIF_{2}^{+}\] done
clear
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question_answer23)
According to VSEPR theory, the most probable shape of the molecule having 4 electron pairs in the outer shell of the central atom is [MP PET 1996, 2001]
A)
Linear done
clear
B)
Tetrahedral done
clear
C)
Hexahedral done
clear
D)
Octahedral done
clear
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question_answer24)
The molecular shapes of \[S{{F}_{4}},\,C{{F}_{4}}\] and \[Xe{{F}_{4}}\] are [AIEEE 2005]
A)
The same with 2, 0 and 1 lone pairs of electrons on the central atom, respectively done
clear
B)
The same with 1, 1 and 1 lone pair of electrons on the central atoms, respectively done
clear
C)
Different with 0, 1 and 2 lone pairs of electrons on the central atom, respectively done
clear
D)
Different with 1, 0 and 2 lone pairs of electrons on the central atom, respectively done
clear
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question_answer25)
Which of the following species is planar [JIPMER 1997]
A)
\[CO_{3}^{2-}\] done
clear
B)
\[N{{H}_{2}}\] done
clear
C)
\[PC{{l}_{3}}\] done
clear
D)
None of these done
clear
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question_answer26)
The shape of \[CH_{3}^{+}\] species is [RPET 1999]
A)
Tetrahedral done
clear
B)
Square planar done
clear
C)
Trigonal planar done
clear
D)
Linear done
clear
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question_answer27)
Which of the following is the correct reducing order of bond-angle [BHU 2000]
A)
\[N{{H}_{3}}<C{{H}_{4}}<{{C}_{2}}{{H}_{2}}<{{H}_{2}}O\] done
clear
B)
\[{{C}_{2}}{{H}_{2}}>N{{H}_{3}}>{{H}_{2}}O<C{{H}_{4}}\] done
clear
C)
\[N{{H}_{3}}>{{H}_{2}}O>C{{H}_{4}}<{{C}_{2}}{{H}_{2}}\] done
clear
D)
\[{{H}_{2}}O<N{{H}_{3}}>C{{H}_{4}}<{{C}_{2}}{{H}_{2}}\] done
clear
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question_answer28)
Which compound has bond angle nearly to \[90{}^\circ \] [Pb. PMT 2001]
A)
\[{{H}_{2}}O\] done
clear
B)
\[{{H}_{2}}S\] done
clear
C)
\[N{{H}_{3}}\] done
clear
D)
\[C{{H}_{4}}\] done
clear
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question_answer29)
A lone pair of electrons in an atom implies [KCET 2002]
A)
A pair of valence electrons not involved in bonding done
clear
B)
A pair of electrons involved in bonding done
clear
C)
A pair of electrons done
clear
D)
A pair of valence electrons done
clear
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question_answer30)
The bond angle of water is \[{{104.5}^{o}}\]due to [CPMT 2002]
A)
Repulsion between lone pair and bond pair done
clear
B)
\[s{{p}^{3}}\] hybridization of O done
clear
C)
Bonding of \[{{H}_{2}}O\] done
clear
D)
Higher electronegativity of O done
clear
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question_answer31)
The correct sequence of decrease in the bond angle of the following hybrides is [MP PET 2002]
A)
\[N{{H}_{3}}>P{{H}_{3}}>As{{H}_{3}}>Sb{{H}_{3}}\] done
clear
B)
\[N{{H}_{3}}>As{{H}_{3}}>P{{H}_{3}}>Sb{{H}_{3}}\] done
clear
C)
\[Sb{{H}_{3}}>As{{H}_{3}}>P{{H}_{3}}>N{{H}_{3}}\] done
clear
D)
\[P{{H}_{3}}>N{{H}_{3}}>As{{H}_{3}}>Sb{{H}_{3}}\] done
clear
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question_answer32)
Central atom of the following compound has one lone pair of electrons and three bond pairs of electrons [JIPMER 2002]
A)
\[{{H}_{2}}S\] done
clear
B)
\[AlC{{l}_{3}}\] done
clear
C)
\[N{{H}_{3}}\] done
clear
D)
\[B{{F}_{3}}\] done
clear
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question_answer33)
Among \[K{{O}_{2}},\,AlO_{2}^{-},\,Ba{{O}_{2}}\] and \[NO_{2}^{+}\] unpaired electron is present in [MP PET 2003]
A)
\[NO_{2}^{+}\] and \[Ba{{O}_{2}}\] done
clear
B)
\[K{{O}_{2}}\]and\[AlO_{2}^{-}\] done
clear
C)
\[K{{O}_{2}}\] only done
clear
D)
\[Ba{{O}_{2}}\]only done
clear
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question_answer34)
True order of bond angle is [RPET 2003]
A)
\[{{H}_{2}}O>{{H}_{2}}S>{{H}_{2}}Se>{{H}_{2}}Te\] done
clear
B)
\[{{H}_{2}}Te>{{H}_{2}}Se>{{H}_{2}}S>{{H}_{2}}O\] done
clear
C)
\[{{H}_{2}}S>{{H}_{2}}O>{{H}_{2}}Se>{{H}_{2}}Te\] done
clear
D)
\[{{H}_{2}}O>{{H}_{2}}S>{{H}_{2}}Te>{{H}_{2}}Se\] done
clear
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question_answer35)
Which of the following has not a lone pair over the central atom [Orissa JEE 2003]
A)
\[N{{H}_{3}}\] done
clear
B)
\[P{{H}_{3}}\] done
clear
C)
\[B{{F}_{3}}\] done
clear
D)
\[PC{{l}_{3}}\] done
clear
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question_answer36)
In \[Br{{F}_{3}}\] molecule,the lone pairs occupy equatorial positions to minimize [CBSE PMT 2004]
A)
Lone pair- lone pair repuilsion and lone pair-bond pair repulsion done
clear
B)
Lone pair- lone pair repulsion only done
clear
C)
Lone pair- bond pair repulsion only done
clear
D)
Bond pair- bond pair repulsion only done
clear
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question_answer37)
\[{{H}_{2}}O\]is dipolar, whereas \[Be{{F}_{2}}\]is not. It is because [CBSE PMT 1989; 2004]
A)
\[{{H}_{2}}O\]is linear and \[Be{{F}_{2}}\] is angular done
clear
B)
\[{{H}_{2}}O\]is angular and \[Be{{F}_{2}}\] is linear done
clear
C)
The electornegativity of F is greater than that of O done
clear
D)
\[{{H}_{2}}O\]involves hydrogen bonding whereas \[Be{{F}_{2}}\]is a discrete molecule done
clear
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question_answer38)
Maximum bond angle is present in [BVP 2004]
A)
\[BC{{l}_{3}}\] done
clear
B)
\[BB{{r}_{3}}\] done
clear
C)
\[B{{F}_{3}}\] done
clear
D)
Same for all done
clear
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question_answer39)
The shape of a molecule of \[N{{H}_{3}}\], in which central atoms contains lone pair of electron, is [MHCET 2003]
A)
Tetrahedral done
clear
B)
Planar trigonal done
clear
C)
Square planar done
clear
D)
Pyramidal done
clear
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question_answer40)
The largest bond angle is in [DCE 2002; MNR 1984]
A)
\[As{{H}_{3}}\] done
clear
B)
\[N{{H}_{3}}\] done
clear
C)
\[{{H}_{2}}O\] done
clear
D)
\[P{{H}_{3}}\] done
clear
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question_answer41)
The bond angle in ammonia molecule is [EAMCET 1980]
A)
\[{{91}^{o}}{8}'\] done
clear
B)
\[{{93}^{o}}3'\] done
clear
C)
\[{{106}^{o}}45'\] done
clear
D)
\[{{109}^{o}}28'\] done
clear
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question_answer42)
Which of the following gives correct arrangement of compounds involved based on their bond strength [BHU 2005]
A)
HF > HCl > HBr > HI done
clear
B)
HI > HBr > HCl > HF done
clear
C)
HF > HBr > HCl > HI done
clear
D)
HCl > HF > HBr > HI done
clear
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question_answer43)
Which one has a pyramidal structure [CBSE PMT 1990]
A)
\[C{{H}_{4}}\] done
clear
B)
\[N{{H}_{3}}\] done
clear
C)
\[{{H}_{2}}O\] done
clear
D)
\[C{{O}_{2}}\] done
clear
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question_answer44)
Among the following the pair in which the two species are not isostructural is [CBSE PMT 2004]
A)
\[BH_{4}^{-}\] and \[NH_{4}^{+}\] done
clear
B)
\[PF_{6}^{-}\]and \[S{{F}_{6}}\] done
clear
C)
\[Si{{F}_{4}}\] and \[S{{F}_{4}}\] done
clear
D)
\[IO_{3}^{-}\] and \[Xe{{O}_{3}}\] done
clear
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question_answer45)
The maximum number of 90° angles between bond pair-bond pair of electrons is observed in [AIEEE 2004]
A)
\[ds{{p}^{2}}\]hybridization done
clear
B)
\[s{{p}^{3}}d\]hybridization done
clear
C)
\[ds{{p}^{3}}\]hybridization done
clear
D)
\[s{{p}^{3}}{{d}^{2}}\]hybridization done
clear
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