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question_answer1)
In a crystal cations and anions are held together by [EAMCET 1982]
A)
Electrons done
clear
B)
Electrostatic forces done
clear
C)
Nuclear forces done
clear
D)
Covalent bonds done
clear
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question_answer2)
In the following metals which one has lowest probable interatomic forces [MP PMT 1990]
A)
Copper done
clear
B)
Silver done
clear
C)
Zinc done
clear
D)
Mercury done
clear
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question_answer3)
In solid argon, the atoms are held together by [NCERT 1981; MP PET 1995]
A)
Ionic bonds done
clear
B)
Hydrogen bonds done
clear
C)
Vander Waals forces done
clear
D)
Hydrophobic forces done
clear
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question_answer4)
Which one is the highest melting halide [AIIMS 1980]
A)
\[NaCl\] done
clear
B)
\[NaBr\] done
clear
C)
\[NaF\] done
clear
D)
\[NaI\] done
clear
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question_answer5)
The enhanced force of cohesion in metals is due to [NCERT 1972]
A)
The covalent linkages between atoms done
clear
B)
The electrovalent linkages between atoms done
clear
C)
The lack of exchange of valency electrons done
clear
D)
The exchange energy of mobile electrons done
clear
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question_answer6)
Which one of the following substances consists of small discrete molecules [CPMT 1987]
A)
\[CO\] done
clear
B)
Graphite done
clear
C)
Copper done
clear
D)
Dry ice done
clear
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question_answer7)
Which of the following does not apply to metallic bond [CBSE PMT 1989]
A)
Overlapping valency orbitals done
clear
B)
Mobile valency electrons done
clear
C)
Delocalized electrons done
clear
D)
Highly directed bonds done
clear
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question_answer8)
In melting lattice, structure of solid [CPMT 1982]
A)
Remains unchanged done
clear
B)
Changes done
clear
C)
Becomes compact done
clear
D)
None of the above done
clear
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question_answer9)
Which of the following has the highest melting point [CPMT 1994]
A)
\[Pb\] done
clear
B)
Diamond done
clear
C)
\[Fe\] done
clear
D)
\[Na\] done
clear
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question_answer10)
In the formation of a molecule by an atom [AFMC 1995]
A)
Attractive forces operate done
clear
B)
Repulsive forces operate done
clear
C)
Both attractive and repulsive forces operate done
clear
D)
None of these done
clear
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question_answer11)
Which has weakest bond [RPMT 1997]
A)
Diamond done
clear
B)
Neon (Solid) done
clear
C)
\[KCl\] done
clear
D)
Ice done
clear
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question_answer12)
Which of the following exhibits the weakest intermolecular forces [AIIMS 1999; BHU 2000]
A)
\[He\] done
clear
B)
\[HCl\] done
clear
C)
\[N{{H}_{3}}\] done
clear
D)
\[{{H}_{2}}O\] done
clear
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question_answer13)
Glycerol has strong intermolecular bonding therefore it is [RPET 2000]
A)
Sweet done
clear
B)
Reactive done
clear
C)
Explosive done
clear
D)
Viscous done
clear
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question_answer14)
Among the following the weakest one is [Pb. PMT 2004; CPMT 2002]
A)
Metallic bond done
clear
B)
Ionic bond done
clear
C)
Van der Waal's force done
clear
D)
Covalent bond done
clear
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question_answer15)
Lattice energy of alkali metal chlorides follows the order [DPMT 2004]
A)
\[LiCl>NaCl>KCl>RbCl>CsCl\] done
clear
B)
\[CsCl>NaCl>KCl>RbCl>LiCl\] done
clear
C)
\[LiCl>CsCl>NaCl>KCl>RbCl\] done
clear
D)
\[NaCl>LiCl>KCl>RbCl>CsCl\] done
clear
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question_answer16)
In the following which molecule or ion possesses electrovalent, covalent and co-ordinate bond at the same time [CPMT 1987]
A)
\[HCl\] done
clear
B)
\[NH_{4}^{+}\] done
clear
C)
\[C{{l}^{-}}\] done
clear
D)
\[{{H}_{2}}{{O}_{2}}\] done
clear
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question_answer17)
Both ionic and covalent bond is present in the following [MNR 1986; MP PMT 2004]
A)
\[C{{H}_{4}}\] done
clear
B)
\[KCl\] done
clear
C)
\[S{{O}_{2}}\] done
clear
D)
\[NaOH\] done
clear
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question_answer18)
The formation of a chemical bond is accompanied by [MP PET 1995]
A)
Decrease in energy done
clear
B)
Increase in energy done
clear
C)
Neither increase nor decrease in energy done
clear
D)
None of these done
clear
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question_answer19)
Chemical bond implies [KCET 2002]
A)
Attraction done
clear
B)
Repulsion done
clear
C)
Neither attraction nor repulsion done
clear
D)
Both A and B done
clear
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question_answer20)
Which of the following statements is true [AIEEE 2002]
A)
HF is less polar than HBr done
clear
B)
Absolutely pure water does not contain any ions done
clear
C)
Chemical bond formation take place when forces of attraction overcome the forces of repulsion done
clear
D)
In covalency transference of electron takes place done
clear
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question_answer21)
Which of the following statements is true about \[\left[ Cu\,{{\left( N{{H}_{3}} \right)}_{4}} \right]S{{O}_{4}}\] [CPMT 1988]
A)
It has coordinate and covalent bonds done
clear
B)
It has only coordinate bonds done
clear
C)
It has only electrovalent bonds done
clear
D)
It has electrovalent, covalent and coordinate bonds done
clear
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question_answer22)
Blue vitriol has
A)
Ionic bond done
clear
B)
Coordinate bond done
clear
C)
Hydrogen bond done
clear
D)
All the above done
clear
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question_answer23)
The number of ionic, covalent and coordinate bonds in \[N{{H}_{4}}Cl\] are respectively [MP PMT 1999]
A)
1, 3 and 1 done
clear
B)
1, 3 and 2 done
clear
C)
1, 2 and 3 done
clear
D)
1, 1 and 3 done
clear
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question_answer24)
Covalent molecules are usually held in a crystal structure by [MP PET 1995]
A)
Dipole-dipole attraction done
clear
B)
Electrostatic attraction done
clear
C)
Hydrogen bonds done
clear
D)
Vander Waal's attraction done
clear
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