316589
Which one of the following halogens has the highest bond dissociation energy?
1
2
3
4
Explanation:
As the size of atom increases, bond length increases, thus bond dissociation energy decreases. However, the dissociation energy of fluorine is lesser than that of chlorine because of its small size. {Hence, has the highest bond dissociation energy.}
CHXI11:THE P-BLOCK ELEMENTS
316590
The electron gain enthalpy (in ) of fluorine, chlorine, bromine and iodine, respectively, are :
1
2
3
4
Explanation:
Chlorine has higher electron gain enthalpy than fluorine (exception). Order of electron gain enthalpy of halogens is
JEE - 2020
CHXI11:THE P-BLOCK ELEMENTS
316591
Halogens have maximum negative electron gain enthalpy in the respective periods of the periodic table. Why?
1 is high and require one electron for octet
2 Due to large size
3 Energy of halogen increases by accepting electron
4 They are non metals
Explanation:
Halogens have the smallest size in their respective periods and therefore high effective nuclear charge. As a consequence, they readily accept one electron to acquire noble gas electronic configuration.
CHXI11:THE P-BLOCK ELEMENTS
316592
Among the following, the one that is relatively most electropositive is
1
2
3
4
Explanation:
On moving down the group electronegativity decreases and electropositive nature increases.
316589
Which one of the following halogens has the highest bond dissociation energy?
1
2
3
4
Explanation:
As the size of atom increases, bond length increases, thus bond dissociation energy decreases. However, the dissociation energy of fluorine is lesser than that of chlorine because of its small size. {Hence, has the highest bond dissociation energy.}
CHXI11:THE P-BLOCK ELEMENTS
316590
The electron gain enthalpy (in ) of fluorine, chlorine, bromine and iodine, respectively, are :
1
2
3
4
Explanation:
Chlorine has higher electron gain enthalpy than fluorine (exception). Order of electron gain enthalpy of halogens is
JEE - 2020
CHXI11:THE P-BLOCK ELEMENTS
316591
Halogens have maximum negative electron gain enthalpy in the respective periods of the periodic table. Why?
1 is high and require one electron for octet
2 Due to large size
3 Energy of halogen increases by accepting electron
4 They are non metals
Explanation:
Halogens have the smallest size in their respective periods and therefore high effective nuclear charge. As a consequence, they readily accept one electron to acquire noble gas electronic configuration.
CHXI11:THE P-BLOCK ELEMENTS
316592
Among the following, the one that is relatively most electropositive is
1
2
3
4
Explanation:
On moving down the group electronegativity decreases and electropositive nature increases.
316589
Which one of the following halogens has the highest bond dissociation energy?
1
2
3
4
Explanation:
As the size of atom increases, bond length increases, thus bond dissociation energy decreases. However, the dissociation energy of fluorine is lesser than that of chlorine because of its small size. {Hence, has the highest bond dissociation energy.}
CHXI11:THE P-BLOCK ELEMENTS
316590
The electron gain enthalpy (in ) of fluorine, chlorine, bromine and iodine, respectively, are :
1
2
3
4
Explanation:
Chlorine has higher electron gain enthalpy than fluorine (exception). Order of electron gain enthalpy of halogens is
JEE - 2020
CHXI11:THE P-BLOCK ELEMENTS
316591
Halogens have maximum negative electron gain enthalpy in the respective periods of the periodic table. Why?
1 is high and require one electron for octet
2 Due to large size
3 Energy of halogen increases by accepting electron
4 They are non metals
Explanation:
Halogens have the smallest size in their respective periods and therefore high effective nuclear charge. As a consequence, they readily accept one electron to acquire noble gas electronic configuration.
CHXI11:THE P-BLOCK ELEMENTS
316592
Among the following, the one that is relatively most electropositive is
1
2
3
4
Explanation:
On moving down the group electronegativity decreases and electropositive nature increases.
316589
Which one of the following halogens has the highest bond dissociation energy?
1
2
3
4
Explanation:
As the size of atom increases, bond length increases, thus bond dissociation energy decreases. However, the dissociation energy of fluorine is lesser than that of chlorine because of its small size. {Hence, has the highest bond dissociation energy.}
CHXI11:THE P-BLOCK ELEMENTS
316590
The electron gain enthalpy (in ) of fluorine, chlorine, bromine and iodine, respectively, are :
1
2
3
4
Explanation:
Chlorine has higher electron gain enthalpy than fluorine (exception). Order of electron gain enthalpy of halogens is
JEE - 2020
CHXI11:THE P-BLOCK ELEMENTS
316591
Halogens have maximum negative electron gain enthalpy in the respective periods of the periodic table. Why?
1 is high and require one electron for octet
2 Due to large size
3 Energy of halogen increases by accepting electron
4 They are non metals
Explanation:
Halogens have the smallest size in their respective periods and therefore high effective nuclear charge. As a consequence, they readily accept one electron to acquire noble gas electronic configuration.
CHXI11:THE P-BLOCK ELEMENTS
316592
Among the following, the one that is relatively most electropositive is
1
2
3
4
Explanation:
On moving down the group electronegativity decreases and electropositive nature increases.
