Polarisation and Fajans' Rules
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313819 The molecule/ion with square pyramidal shape is

1 \({\mathrm{\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}}}\)
2 \({\mathrm{\mathrm{PF}_{5}}}\)
3 \({\mathrm{\mathrm{PCl}_{5}}}\)
4 \({\mathrm{\mathrm{BrF}_{5}}}\)
JEE Main - 2024
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313820 Assertion :
Among two cations of similar size, the polarising power of cation with pseudo noble gas configuration is larger than cation with noble gas configuration.
Reason :
Polarising power of \({\rm{A}}{{\rm{g}}^{\rm{ + }}}\) is more than \({{\rm{K}}^{\rm{ + }}}\)

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

313821 The compound with the highest degree of covalent nature is

1 \({\rm{NaCl}}\)
2 \({\rm{MgC}}{{\rm{l}}_{\rm{2}}}\)
3 \({\rm{AgCl}}\)
4 \({\rm{CsCl}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313822 Which of the following is least ionic?

1 \({\mathrm{\mathrm{CoCl}_{2}}}\)
2 KCl
3 \({\mathrm{\mathrm{BaCl}_{2}}}\)
4 AgCl
JEE Main - 2024
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313819 The molecule/ion with square pyramidal shape is

1 \({\mathrm{\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}}}\)
2 \({\mathrm{\mathrm{PF}_{5}}}\)
3 \({\mathrm{\mathrm{PCl}_{5}}}\)
4 \({\mathrm{\mathrm{BrF}_{5}}}\)
JEE Main - 2024
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313820 Assertion :
Among two cations of similar size, the polarising power of cation with pseudo noble gas configuration is larger than cation with noble gas configuration.
Reason :
Polarising power of \({\rm{A}}{{\rm{g}}^{\rm{ + }}}\) is more than \({{\rm{K}}^{\rm{ + }}}\)

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

313821 The compound with the highest degree of covalent nature is

1 \({\rm{NaCl}}\)
2 \({\rm{MgC}}{{\rm{l}}_{\rm{2}}}\)
3 \({\rm{AgCl}}\)
4 \({\rm{CsCl}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313822 Which of the following is least ionic?

1 \({\mathrm{\mathrm{CoCl}_{2}}}\)
2 KCl
3 \({\mathrm{\mathrm{BaCl}_{2}}}\)
4 AgCl
JEE Main - 2024
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313819 The molecule/ion with square pyramidal shape is

1 \({\mathrm{\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}}}\)
2 \({\mathrm{\mathrm{PF}_{5}}}\)
3 \({\mathrm{\mathrm{PCl}_{5}}}\)
4 \({\mathrm{\mathrm{BrF}_{5}}}\)
JEE Main - 2024
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313820 Assertion :
Among two cations of similar size, the polarising power of cation with pseudo noble gas configuration is larger than cation with noble gas configuration.
Reason :
Polarising power of \({\rm{A}}{{\rm{g}}^{\rm{ + }}}\) is more than \({{\rm{K}}^{\rm{ + }}}\)

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

313821 The compound with the highest degree of covalent nature is

1 \({\rm{NaCl}}\)
2 \({\rm{MgC}}{{\rm{l}}_{\rm{2}}}\)
3 \({\rm{AgCl}}\)
4 \({\rm{CsCl}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313822 Which of the following is least ionic?

1 \({\mathrm{\mathrm{CoCl}_{2}}}\)
2 KCl
3 \({\mathrm{\mathrm{BaCl}_{2}}}\)
4 AgCl
JEE Main - 2024
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313819 The molecule/ion with square pyramidal shape is

1 \({\mathrm{\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}}}\)
2 \({\mathrm{\mathrm{PF}_{5}}}\)
3 \({\mathrm{\mathrm{PCl}_{5}}}\)
4 \({\mathrm{\mathrm{BrF}_{5}}}\)
JEE Main - 2024
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313820 Assertion :
Among two cations of similar size, the polarising power of cation with pseudo noble gas configuration is larger than cation with noble gas configuration.
Reason :
Polarising power of \({\rm{A}}{{\rm{g}}^{\rm{ + }}}\) is more than \({{\rm{K}}^{\rm{ + }}}\)

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

313821 The compound with the highest degree of covalent nature is

1 \({\rm{NaCl}}\)
2 \({\rm{MgC}}{{\rm{l}}_{\rm{2}}}\)
3 \({\rm{AgCl}}\)
4 \({\rm{CsCl}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313822 Which of the following is least ionic?

1 \({\mathrm{\mathrm{CoCl}_{2}}}\)
2 KCl
3 \({\mathrm{\mathrm{BaCl}_{2}}}\)
4 AgCl
JEE Main - 2024
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