313800
Octet rule is mostly violated in the compounds formed by
1 Alkali metals
2 Alkaline earth metals
3 p–block elements
4 Transition elements
Explanation:
Due to d-orbitals.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE
313801
Which of the following species follows the octet rule for all of its atoms?
1 \(\mathrm{BF}_{3}\)
2 \(\mathrm{TeF}_{6}\)
3 \(\mathrm{XeF}_{6}\)
4 \(\mathrm{C}_{2} \mathrm{~F}_{6}\)
Explanation:
Each atom in \(\mathrm{C}_{2} \mathrm{~F}_{6}\) has 8 electrons (following octet rule)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE
313802
Which of the following has octet around central atom?
1 \(\mathrm{PF}_{5}\)
2 \(\mathrm{SF}_{6}\)
3 \(\mathrm{CCl}_{4}\)
4 \(\mathrm{BF}_{3}\)
Explanation:
In a chemical bond, electrons are transferred or shared such that each atom attains an electronic configuration of a noble gas \(\left(\mathrm{ns}^{2} \mathrm{np}\right.\) ) i.e. having 8 outer shell (valency) electron. This arrangement is in accordance with octet rule. An outermost shell which had eight electrons is called octet. Carbon tertrachloride has octet around central atom. The number of valence electrons in given compounds are as follows:\(\mathrm{PF}_{5}\left(10 \mathrm{e}^{-}\right), \mathrm{SF}_{6}\left(12 \mathrm{e}^{-}\right), \mathrm{CCl}_{4}\left(8 \mathrm{e}^{-}\right), \mathrm{BF}_{3}\left(6 \mathrm{e}^{-}\right)\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE
313803
Assertion : Octet theory cannot account for the shape of the molecule. Reason : Octet theory can predict relative stability and energy of a molecule.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The octet theory is notably silent when it comes to addressing the energy of a molecule and its relative stability. So the option (3) is correct.
313800
Octet rule is mostly violated in the compounds formed by
1 Alkali metals
2 Alkaline earth metals
3 p–block elements
4 Transition elements
Explanation:
Due to d-orbitals.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE
313801
Which of the following species follows the octet rule for all of its atoms?
1 \(\mathrm{BF}_{3}\)
2 \(\mathrm{TeF}_{6}\)
3 \(\mathrm{XeF}_{6}\)
4 \(\mathrm{C}_{2} \mathrm{~F}_{6}\)
Explanation:
Each atom in \(\mathrm{C}_{2} \mathrm{~F}_{6}\) has 8 electrons (following octet rule)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE
313802
Which of the following has octet around central atom?
1 \(\mathrm{PF}_{5}\)
2 \(\mathrm{SF}_{6}\)
3 \(\mathrm{CCl}_{4}\)
4 \(\mathrm{BF}_{3}\)
Explanation:
In a chemical bond, electrons are transferred or shared such that each atom attains an electronic configuration of a noble gas \(\left(\mathrm{ns}^{2} \mathrm{np}\right.\) ) i.e. having 8 outer shell (valency) electron. This arrangement is in accordance with octet rule. An outermost shell which had eight electrons is called octet. Carbon tertrachloride has octet around central atom. The number of valence electrons in given compounds are as follows:\(\mathrm{PF}_{5}\left(10 \mathrm{e}^{-}\right), \mathrm{SF}_{6}\left(12 \mathrm{e}^{-}\right), \mathrm{CCl}_{4}\left(8 \mathrm{e}^{-}\right), \mathrm{BF}_{3}\left(6 \mathrm{e}^{-}\right)\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE
313803
Assertion : Octet theory cannot account for the shape of the molecule. Reason : Octet theory can predict relative stability and energy of a molecule.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The octet theory is notably silent when it comes to addressing the energy of a molecule and its relative stability. So the option (3) is correct.
313800
Octet rule is mostly violated in the compounds formed by
1 Alkali metals
2 Alkaline earth metals
3 p–block elements
4 Transition elements
Explanation:
Due to d-orbitals.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE
313801
Which of the following species follows the octet rule for all of its atoms?
1 \(\mathrm{BF}_{3}\)
2 \(\mathrm{TeF}_{6}\)
3 \(\mathrm{XeF}_{6}\)
4 \(\mathrm{C}_{2} \mathrm{~F}_{6}\)
Explanation:
Each atom in \(\mathrm{C}_{2} \mathrm{~F}_{6}\) has 8 electrons (following octet rule)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE
313802
Which of the following has octet around central atom?
1 \(\mathrm{PF}_{5}\)
2 \(\mathrm{SF}_{6}\)
3 \(\mathrm{CCl}_{4}\)
4 \(\mathrm{BF}_{3}\)
Explanation:
In a chemical bond, electrons are transferred or shared such that each atom attains an electronic configuration of a noble gas \(\left(\mathrm{ns}^{2} \mathrm{np}\right.\) ) i.e. having 8 outer shell (valency) electron. This arrangement is in accordance with octet rule. An outermost shell which had eight electrons is called octet. Carbon tertrachloride has octet around central atom. The number of valence electrons in given compounds are as follows:\(\mathrm{PF}_{5}\left(10 \mathrm{e}^{-}\right), \mathrm{SF}_{6}\left(12 \mathrm{e}^{-}\right), \mathrm{CCl}_{4}\left(8 \mathrm{e}^{-}\right), \mathrm{BF}_{3}\left(6 \mathrm{e}^{-}\right)\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE
313803
Assertion : Octet theory cannot account for the shape of the molecule. Reason : Octet theory can predict relative stability and energy of a molecule.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The octet theory is notably silent when it comes to addressing the energy of a molecule and its relative stability. So the option (3) is correct.
313800
Octet rule is mostly violated in the compounds formed by
1 Alkali metals
2 Alkaline earth metals
3 p–block elements
4 Transition elements
Explanation:
Due to d-orbitals.
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE
313801
Which of the following species follows the octet rule for all of its atoms?
1 \(\mathrm{BF}_{3}\)
2 \(\mathrm{TeF}_{6}\)
3 \(\mathrm{XeF}_{6}\)
4 \(\mathrm{C}_{2} \mathrm{~F}_{6}\)
Explanation:
Each atom in \(\mathrm{C}_{2} \mathrm{~F}_{6}\) has 8 electrons (following octet rule)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE
313802
Which of the following has octet around central atom?
1 \(\mathrm{PF}_{5}\)
2 \(\mathrm{SF}_{6}\)
3 \(\mathrm{CCl}_{4}\)
4 \(\mathrm{BF}_{3}\)
Explanation:
In a chemical bond, electrons are transferred or shared such that each atom attains an electronic configuration of a noble gas \(\left(\mathrm{ns}^{2} \mathrm{np}\right.\) ) i.e. having 8 outer shell (valency) electron. This arrangement is in accordance with octet rule. An outermost shell which had eight electrons is called octet. Carbon tertrachloride has octet around central atom. The number of valence electrons in given compounds are as follows:\(\mathrm{PF}_{5}\left(10 \mathrm{e}^{-}\right), \mathrm{SF}_{6}\left(12 \mathrm{e}^{-}\right), \mathrm{CCl}_{4}\left(8 \mathrm{e}^{-}\right), \mathrm{BF}_{3}\left(6 \mathrm{e}^{-}\right)\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE
313803
Assertion : Octet theory cannot account for the shape of the molecule. Reason : Octet theory can predict relative stability and energy of a molecule.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The octet theory is notably silent when it comes to addressing the energy of a molecule and its relative stability. So the option (3) is correct.
