Comparision between Ionic and Covalent Bond
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313515 The bond between two identical non-metal atoms has a pair of electrons

1 Unequally shared between them
2 Transferred fully from one atom to the other atom
3 With identical spins
4 Equally shared between them
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313516 If the electronic configuration of an element is \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{2}}{{\rm{s}}^{\rm{2}}}\,\,{\rm{2}}{{\rm{p}}^{\rm{6}}}{\mkern 1mu} {\mkern 1mu} {\rm{3}}{{\rm{s}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{3}}{{\rm{p}}^{\rm{6}}}{\mkern 1mu} {\mkern 1mu} {\rm{3}}{{\rm{d}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{4}}{{\rm{s}}^{\rm{2}}}\), the four electrons involved in chemical bond formation will be

1 \({\rm{3}}{{\rm{p}}^{\rm{6}}}\)
2 \({\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{,}}\,\,{\rm{4}}{{\rm{s}}^{\rm{2}}}\)
3 \({\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{,}}\,\,{\rm{3}}{{\rm{d}}^{\rm{2}}}\)
4 \({\rm{3}}{{\rm{d}}^{\rm{2}}}{\rm{,}}\,\,{\rm{4}}{{\rm{s}}^{\rm{2}}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313517 Assertion :
\({\rm{Be}}{{\rm{F}}_{\rm{2}}}\) is predominantly a covalent compound.
Reason :
Electronegativity difference between Be and F is too small.

1 If both Assertion & Reason are true and the reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313518 During bond formation potential energy of the system

1 Increases
2 Decreases
3 Remains the same
4 Cannot be predicted
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313519 Out of the following which one has the highest value of covalent character?

1 \(\mathrm{ZnCl}_{2}\)
2 \(\mathrm{CdCl}_{2}\)
3 \(\mathrm{HgCl}_{2}\)
4 CuCl
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313515 The bond between two identical non-metal atoms has a pair of electrons

1 Unequally shared between them
2 Transferred fully from one atom to the other atom
3 With identical spins
4 Equally shared between them
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313516 If the electronic configuration of an element is \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{2}}{{\rm{s}}^{\rm{2}}}\,\,{\rm{2}}{{\rm{p}}^{\rm{6}}}{\mkern 1mu} {\mkern 1mu} {\rm{3}}{{\rm{s}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{3}}{{\rm{p}}^{\rm{6}}}{\mkern 1mu} {\mkern 1mu} {\rm{3}}{{\rm{d}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{4}}{{\rm{s}}^{\rm{2}}}\), the four electrons involved in chemical bond formation will be

1 \({\rm{3}}{{\rm{p}}^{\rm{6}}}\)
2 \({\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{,}}\,\,{\rm{4}}{{\rm{s}}^{\rm{2}}}\)
3 \({\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{,}}\,\,{\rm{3}}{{\rm{d}}^{\rm{2}}}\)
4 \({\rm{3}}{{\rm{d}}^{\rm{2}}}{\rm{,}}\,\,{\rm{4}}{{\rm{s}}^{\rm{2}}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313517 Assertion :
\({\rm{Be}}{{\rm{F}}_{\rm{2}}}\) is predominantly a covalent compound.
Reason :
Electronegativity difference between Be and F is too small.

1 If both Assertion & Reason are true and the reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313518 During bond formation potential energy of the system

1 Increases
2 Decreases
3 Remains the same
4 Cannot be predicted
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313519 Out of the following which one has the highest value of covalent character?

1 \(\mathrm{ZnCl}_{2}\)
2 \(\mathrm{CdCl}_{2}\)
3 \(\mathrm{HgCl}_{2}\)
4 CuCl
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313515 The bond between two identical non-metal atoms has a pair of electrons

1 Unequally shared between them
2 Transferred fully from one atom to the other atom
3 With identical spins
4 Equally shared between them
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313516 If the electronic configuration of an element is \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{2}}{{\rm{s}}^{\rm{2}}}\,\,{\rm{2}}{{\rm{p}}^{\rm{6}}}{\mkern 1mu} {\mkern 1mu} {\rm{3}}{{\rm{s}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{3}}{{\rm{p}}^{\rm{6}}}{\mkern 1mu} {\mkern 1mu} {\rm{3}}{{\rm{d}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{4}}{{\rm{s}}^{\rm{2}}}\), the four electrons involved in chemical bond formation will be

1 \({\rm{3}}{{\rm{p}}^{\rm{6}}}\)
2 \({\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{,}}\,\,{\rm{4}}{{\rm{s}}^{\rm{2}}}\)
3 \({\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{,}}\,\,{\rm{3}}{{\rm{d}}^{\rm{2}}}\)
4 \({\rm{3}}{{\rm{d}}^{\rm{2}}}{\rm{,}}\,\,{\rm{4}}{{\rm{s}}^{\rm{2}}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313517 Assertion :
\({\rm{Be}}{{\rm{F}}_{\rm{2}}}\) is predominantly a covalent compound.
Reason :
Electronegativity difference between Be and F is too small.

1 If both Assertion & Reason are true and the reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313518 During bond formation potential energy of the system

1 Increases
2 Decreases
3 Remains the same
4 Cannot be predicted
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313519 Out of the following which one has the highest value of covalent character?

1 \(\mathrm{ZnCl}_{2}\)
2 \(\mathrm{CdCl}_{2}\)
3 \(\mathrm{HgCl}_{2}\)
4 CuCl
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313515 The bond between two identical non-metal atoms has a pair of electrons

1 Unequally shared between them
2 Transferred fully from one atom to the other atom
3 With identical spins
4 Equally shared between them
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313516 If the electronic configuration of an element is \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{2}}{{\rm{s}}^{\rm{2}}}\,\,{\rm{2}}{{\rm{p}}^{\rm{6}}}{\mkern 1mu} {\mkern 1mu} {\rm{3}}{{\rm{s}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{3}}{{\rm{p}}^{\rm{6}}}{\mkern 1mu} {\mkern 1mu} {\rm{3}}{{\rm{d}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{4}}{{\rm{s}}^{\rm{2}}}\), the four electrons involved in chemical bond formation will be

1 \({\rm{3}}{{\rm{p}}^{\rm{6}}}\)
2 \({\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{,}}\,\,{\rm{4}}{{\rm{s}}^{\rm{2}}}\)
3 \({\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{,}}\,\,{\rm{3}}{{\rm{d}}^{\rm{2}}}\)
4 \({\rm{3}}{{\rm{d}}^{\rm{2}}}{\rm{,}}\,\,{\rm{4}}{{\rm{s}}^{\rm{2}}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313517 Assertion :
\({\rm{Be}}{{\rm{F}}_{\rm{2}}}\) is predominantly a covalent compound.
Reason :
Electronegativity difference between Be and F is too small.

1 If both Assertion & Reason are true and the reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313518 During bond formation potential energy of the system

1 Increases
2 Decreases
3 Remains the same
4 Cannot be predicted
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313519 Out of the following which one has the highest value of covalent character?

1 \(\mathrm{ZnCl}_{2}\)
2 \(\mathrm{CdCl}_{2}\)
3 \(\mathrm{HgCl}_{2}\)
4 CuCl
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313515 The bond between two identical non-metal atoms has a pair of electrons

1 Unequally shared between them
2 Transferred fully from one atom to the other atom
3 With identical spins
4 Equally shared between them
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313516 If the electronic configuration of an element is \({\rm{1}}{{\rm{s}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{2}}{{\rm{s}}^{\rm{2}}}\,\,{\rm{2}}{{\rm{p}}^{\rm{6}}}{\mkern 1mu} {\mkern 1mu} {\rm{3}}{{\rm{s}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{3}}{{\rm{p}}^{\rm{6}}}{\mkern 1mu} {\mkern 1mu} {\rm{3}}{{\rm{d}}^{\rm{2}}}{\mkern 1mu} {\mkern 1mu} {\rm{4}}{{\rm{s}}^{\rm{2}}}\), the four electrons involved in chemical bond formation will be

1 \({\rm{3}}{{\rm{p}}^{\rm{6}}}\)
2 \({\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{,}}\,\,{\rm{4}}{{\rm{s}}^{\rm{2}}}\)
3 \({\rm{3}}{{\rm{p}}^{\rm{6}}}{\rm{,}}\,\,{\rm{3}}{{\rm{d}}^{\rm{2}}}\)
4 \({\rm{3}}{{\rm{d}}^{\rm{2}}}{\rm{,}}\,\,{\rm{4}}{{\rm{s}}^{\rm{2}}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313517 Assertion :
\({\rm{Be}}{{\rm{F}}_{\rm{2}}}\) is predominantly a covalent compound.
Reason :
Electronegativity difference between Be and F is too small.

1 If both Assertion & Reason are true and the reason is the correct explanation of the assertion.
2 If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.
3 If Assertion is true but Reason is false.
4 If Assertion is false but Reason is true.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313518 During bond formation potential energy of the system

1 Increases
2 Decreases
3 Remains the same
4 Cannot be predicted
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313519 Out of the following which one has the highest value of covalent character?

1 \(\mathrm{ZnCl}_{2}\)
2 \(\mathrm{CdCl}_{2}\)
3 \(\mathrm{HgCl}_{2}\)
4 CuCl