Chemical Properties and General Characteristics of Group – 13 Elements
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CHXI11:THE P-BLOCK ELEMENTS

316286 Which element undergoes disproportionation in water?

1 \(\mathrm{Cl}_{2}\)
2 \(\mathrm{F}_{2}\)
3 \(\mathrm{K}\)
4 \(\mathrm{Cs}\)
CHXI11:THE P-BLOCK ELEMENTS

316287 Although electron gain enthalpy of fluorine is less negative as compared to chlorine, fluorine(i), (iii) correct is stronger oxidizing agent than chlorine because (3) (i), (ii), (iii) correct of:
(i) Low enthalpy of dissociation of F-F bond
(ii) High-hydration enthalpy of \(\mathrm{F}^{-}\)
(iii) High electron affinity of fluorine than chlorine

1 (i) ,(ii) correct
2 (i) ,(iii) correct
3 (i) ,(ii), (iii) correct
4 (ii) ,(iii) correct
CHXI11:THE P-BLOCK ELEMENTS

316288 How many of the following are basic oxides?
\({\mathrm{\mathrm{Al}_{2} \mathrm{O}_{3}, \mathrm{CaO}, \mathrm{K}_{2} \mathrm{O}, \mathrm{MgO}, \mathrm{CO}_{2}, \mathrm{Cl}_{2} \mathrm{O}_{7}}}\)

1 6
2 5
3 3
4 1
CHXI11:THE P-BLOCK ELEMENTS

316289 Which of the following statements is correct?

1 \(\mathrm{Cl}_{2}\) oxidises \(\mathrm{H}_{2} \mathrm{O}\) to \(\mathrm{O}_{2}\) but \(\mathrm{F}_{2}\) does not.
2 \(\mathrm{Cl}_{2}\) is a stronger oxidising agent than \(\mathrm{F}_{2}\)
3 \(\mathrm{F}_{2}\) oxidises \(\mathrm{H}_{2} \mathrm{O}\) to \(\mathrm{O}_{2}\) but \(\mathrm{Cl}_{2}\) does not.
4 Fluoride is a good oxidising agent.
KCET - 2019
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CHXI11:THE P-BLOCK ELEMENTS

316286 Which element undergoes disproportionation in water?

1 \(\mathrm{Cl}_{2}\)
2 \(\mathrm{F}_{2}\)
3 \(\mathrm{K}\)
4 \(\mathrm{Cs}\)
CHXI11:THE P-BLOCK ELEMENTS

316287 Although electron gain enthalpy of fluorine is less negative as compared to chlorine, fluorine(i), (iii) correct is stronger oxidizing agent than chlorine because (3) (i), (ii), (iii) correct of:
(i) Low enthalpy of dissociation of F-F bond
(ii) High-hydration enthalpy of \(\mathrm{F}^{-}\)
(iii) High electron affinity of fluorine than chlorine

1 (i) ,(ii) correct
2 (i) ,(iii) correct
3 (i) ,(ii), (iii) correct
4 (ii) ,(iii) correct
CHXI11:THE P-BLOCK ELEMENTS

316288 How many of the following are basic oxides?
\({\mathrm{\mathrm{Al}_{2} \mathrm{O}_{3}, \mathrm{CaO}, \mathrm{K}_{2} \mathrm{O}, \mathrm{MgO}, \mathrm{CO}_{2}, \mathrm{Cl}_{2} \mathrm{O}_{7}}}\)

1 6
2 5
3 3
4 1
CHXI11:THE P-BLOCK ELEMENTS

316289 Which of the following statements is correct?

1 \(\mathrm{Cl}_{2}\) oxidises \(\mathrm{H}_{2} \mathrm{O}\) to \(\mathrm{O}_{2}\) but \(\mathrm{F}_{2}\) does not.
2 \(\mathrm{Cl}_{2}\) is a stronger oxidising agent than \(\mathrm{F}_{2}\)
3 \(\mathrm{F}_{2}\) oxidises \(\mathrm{H}_{2} \mathrm{O}\) to \(\mathrm{O}_{2}\) but \(\mathrm{Cl}_{2}\) does not.
4 Fluoride is a good oxidising agent.
KCET - 2019
NEET DIGITAL LIBRARY
CHXI11:THE P-BLOCK ELEMENTS

316286 Which element undergoes disproportionation in water?

1 \(\mathrm{Cl}_{2}\)
2 \(\mathrm{F}_{2}\)
3 \(\mathrm{K}\)
4 \(\mathrm{Cs}\)
CHXI11:THE P-BLOCK ELEMENTS

316287 Although electron gain enthalpy of fluorine is less negative as compared to chlorine, fluorine(i), (iii) correct is stronger oxidizing agent than chlorine because (3) (i), (ii), (iii) correct of:
(i) Low enthalpy of dissociation of F-F bond
(ii) High-hydration enthalpy of \(\mathrm{F}^{-}\)
(iii) High electron affinity of fluorine than chlorine

1 (i) ,(ii) correct
2 (i) ,(iii) correct
3 (i) ,(ii), (iii) correct
4 (ii) ,(iii) correct
CHXI11:THE P-BLOCK ELEMENTS

316288 How many of the following are basic oxides?
\({\mathrm{\mathrm{Al}_{2} \mathrm{O}_{3}, \mathrm{CaO}, \mathrm{K}_{2} \mathrm{O}, \mathrm{MgO}, \mathrm{CO}_{2}, \mathrm{Cl}_{2} \mathrm{O}_{7}}}\)

1 6
2 5
3 3
4 1
CHXI11:THE P-BLOCK ELEMENTS

316289 Which of the following statements is correct?

1 \(\mathrm{Cl}_{2}\) oxidises \(\mathrm{H}_{2} \mathrm{O}\) to \(\mathrm{O}_{2}\) but \(\mathrm{F}_{2}\) does not.
2 \(\mathrm{Cl}_{2}\) is a stronger oxidising agent than \(\mathrm{F}_{2}\)
3 \(\mathrm{F}_{2}\) oxidises \(\mathrm{H}_{2} \mathrm{O}\) to \(\mathrm{O}_{2}\) but \(\mathrm{Cl}_{2}\) does not.
4 Fluoride is a good oxidising agent.
KCET - 2019
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CHXI11:THE P-BLOCK ELEMENTS

316286 Which element undergoes disproportionation in water?

1 \(\mathrm{Cl}_{2}\)
2 \(\mathrm{F}_{2}\)
3 \(\mathrm{K}\)
4 \(\mathrm{Cs}\)
CHXI11:THE P-BLOCK ELEMENTS

316287 Although electron gain enthalpy of fluorine is less negative as compared to chlorine, fluorine(i), (iii) correct is stronger oxidizing agent than chlorine because (3) (i), (ii), (iii) correct of:
(i) Low enthalpy of dissociation of F-F bond
(ii) High-hydration enthalpy of \(\mathrm{F}^{-}\)
(iii) High electron affinity of fluorine than chlorine

1 (i) ,(ii) correct
2 (i) ,(iii) correct
3 (i) ,(ii), (iii) correct
4 (ii) ,(iii) correct
CHXI11:THE P-BLOCK ELEMENTS

316288 How many of the following are basic oxides?
\({\mathrm{\mathrm{Al}_{2} \mathrm{O}_{3}, \mathrm{CaO}, \mathrm{K}_{2} \mathrm{O}, \mathrm{MgO}, \mathrm{CO}_{2}, \mathrm{Cl}_{2} \mathrm{O}_{7}}}\)

1 6
2 5
3 3
4 1
CHXI11:THE P-BLOCK ELEMENTS

316289 Which of the following statements is correct?

1 \(\mathrm{Cl}_{2}\) oxidises \(\mathrm{H}_{2} \mathrm{O}\) to \(\mathrm{O}_{2}\) but \(\mathrm{F}_{2}\) does not.
2 \(\mathrm{Cl}_{2}\) is a stronger oxidising agent than \(\mathrm{F}_{2}\)
3 \(\mathrm{F}_{2}\) oxidises \(\mathrm{H}_{2} \mathrm{O}\) to \(\mathrm{O}_{2}\) but \(\mathrm{Cl}_{2}\) does not.
4 Fluoride is a good oxidising agent.
KCET - 2019
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