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

313832 Which of the molecule has maximum covalent character?

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

313833 Which of the following is the correct order of stability for the given superoxides

1 \({\rm{K}}{{\rm{O}}_{\rm{2}}} < {\rm{Rb}}{{\rm{O}}_2} < {\rm{Cs}}{{\rm{O}}_2}\)
2 \({\rm{Cs}}{{\rm{O}}_{\rm{2}}} < {\rm{Rb}}{{\rm{O}}_2} < {\rm{K}}{{\rm{O}}_{\rm{2}}}\)
3 \({\rm{Rb}}{{\rm{O}}_2} < {\rm{Cs}}{{\rm{O}}_{\rm{2}}} < {\rm{K}}{{\rm{O}}_{\rm{2}}}\)
4 \({\rm{K}}{{\rm{O}}_{\rm{2}}} < {\rm{CsO}} < {\rm{Rb}}{{\rm{O}}_2}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313834 Polarisation power of a cation increases when

1 Charge on the cation increases
2 Size of the cation increases
3 Charge on the cation decreases
4 Has no relation to its size or charge
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313835 The correct decreasing order of polarisability of ions is

1 \({\rm{C}}{{\rm{l}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{B}}{{\rm{r}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{I}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{F}}^{\rm{ - }}}\)
2 \({{\rm{F}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{I}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{B}}{{\rm{r}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{C}}{{\rm{l}}^{\rm{ - }}}\)
3 \({{\rm{F}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{C}}{{\rm{l}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{B}}{{\rm{r}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{I}}^{\rm{ - }}}\)
4 \({{\rm{I}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{B}}{{\rm{r}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{C}}{{\rm{l}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{F}}^{\rm{ - }}}\)
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313832 Which of the molecule has maximum covalent character?

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

313833 Which of the following is the correct order of stability for the given superoxides

1 \({\rm{K}}{{\rm{O}}_{\rm{2}}} < {\rm{Rb}}{{\rm{O}}_2} < {\rm{Cs}}{{\rm{O}}_2}\)
2 \({\rm{Cs}}{{\rm{O}}_{\rm{2}}} < {\rm{Rb}}{{\rm{O}}_2} < {\rm{K}}{{\rm{O}}_{\rm{2}}}\)
3 \({\rm{Rb}}{{\rm{O}}_2} < {\rm{Cs}}{{\rm{O}}_{\rm{2}}} < {\rm{K}}{{\rm{O}}_{\rm{2}}}\)
4 \({\rm{K}}{{\rm{O}}_{\rm{2}}} < {\rm{CsO}} < {\rm{Rb}}{{\rm{O}}_2}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313834 Polarisation power of a cation increases when

1 Charge on the cation increases
2 Size of the cation increases
3 Charge on the cation decreases
4 Has no relation to its size or charge
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313835 The correct decreasing order of polarisability of ions is

1 \({\rm{C}}{{\rm{l}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{B}}{{\rm{r}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{I}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{F}}^{\rm{ - }}}\)
2 \({{\rm{F}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{I}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{B}}{{\rm{r}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{C}}{{\rm{l}}^{\rm{ - }}}\)
3 \({{\rm{F}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{C}}{{\rm{l}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{B}}{{\rm{r}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{I}}^{\rm{ - }}}\)
4 \({{\rm{I}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{B}}{{\rm{r}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{C}}{{\rm{l}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{F}}^{\rm{ - }}}\)
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313832 Which of the molecule has maximum covalent character?

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

313833 Which of the following is the correct order of stability for the given superoxides

1 \({\rm{K}}{{\rm{O}}_{\rm{2}}} < {\rm{Rb}}{{\rm{O}}_2} < {\rm{Cs}}{{\rm{O}}_2}\)
2 \({\rm{Cs}}{{\rm{O}}_{\rm{2}}} < {\rm{Rb}}{{\rm{O}}_2} < {\rm{K}}{{\rm{O}}_{\rm{2}}}\)
3 \({\rm{Rb}}{{\rm{O}}_2} < {\rm{Cs}}{{\rm{O}}_{\rm{2}}} < {\rm{K}}{{\rm{O}}_{\rm{2}}}\)
4 \({\rm{K}}{{\rm{O}}_{\rm{2}}} < {\rm{CsO}} < {\rm{Rb}}{{\rm{O}}_2}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313834 Polarisation power of a cation increases when

1 Charge on the cation increases
2 Size of the cation increases
3 Charge on the cation decreases
4 Has no relation to its size or charge
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313835 The correct decreasing order of polarisability of ions is

1 \({\rm{C}}{{\rm{l}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{B}}{{\rm{r}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{I}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{F}}^{\rm{ - }}}\)
2 \({{\rm{F}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{I}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{B}}{{\rm{r}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{C}}{{\rm{l}}^{\rm{ - }}}\)
3 \({{\rm{F}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{C}}{{\rm{l}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{B}}{{\rm{r}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{I}}^{\rm{ - }}}\)
4 \({{\rm{I}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{B}}{{\rm{r}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{C}}{{\rm{l}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{F}}^{\rm{ - }}}\)
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313832 Which of the molecule has maximum covalent character?

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

313833 Which of the following is the correct order of stability for the given superoxides

1 \({\rm{K}}{{\rm{O}}_{\rm{2}}} < {\rm{Rb}}{{\rm{O}}_2} < {\rm{Cs}}{{\rm{O}}_2}\)
2 \({\rm{Cs}}{{\rm{O}}_{\rm{2}}} < {\rm{Rb}}{{\rm{O}}_2} < {\rm{K}}{{\rm{O}}_{\rm{2}}}\)
3 \({\rm{Rb}}{{\rm{O}}_2} < {\rm{Cs}}{{\rm{O}}_{\rm{2}}} < {\rm{K}}{{\rm{O}}_{\rm{2}}}\)
4 \({\rm{K}}{{\rm{O}}_{\rm{2}}} < {\rm{CsO}} < {\rm{Rb}}{{\rm{O}}_2}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313834 Polarisation power of a cation increases when

1 Charge on the cation increases
2 Size of the cation increases
3 Charge on the cation decreases
4 Has no relation to its size or charge
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313835 The correct decreasing order of polarisability of ions is

1 \({\rm{C}}{{\rm{l}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{B}}{{\rm{r}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{I}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{F}}^{\rm{ - }}}\)
2 \({{\rm{F}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{I}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{B}}{{\rm{r}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{C}}{{\rm{l}}^{\rm{ - }}}\)
3 \({{\rm{F}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{C}}{{\rm{l}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{B}}{{\rm{r}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{I}}^{\rm{ - }}}\)
4 \({{\rm{I}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{B}}{{\rm{r}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{C}}{{\rm{l}}^{\rm{ - }}}{\rm{,}}\,\,{{\rm{F}}^{\rm{ - }}}\)