316108
Boric acid is solid, whereas is gas at room temperature because of
1 strong hydrogen bond in boric acid
2 strong van der Waals' interaction in boric acid
3 strong ionic bond in boric acid.
4 strong covalent bond in
Explanation:
Boric acid is solid, whereas is gas at room temperature because of strong hydrogen bonding in boric acid.
JEE - 2023
CHXI11:THE P-BLOCK ELEMENTS
316109
Which is correctly matched?
1 Tincal
2 Boric acid
3 Kernite
4 Colemanite
Explanation:
CHXI11:THE P-BLOCK ELEMENTS
316110
In the reaction, functions as
1 Protonic acid
2 Lewis base
3 Bronsted acid
4 Lewis acid.
Explanation:
functions as a Lewis acid as it accepts a pair of electrons from of water by releasing a proton.
KCET - 2019
CHXI11:THE P-BLOCK ELEMENTS
316111
Assertion : Boric acid acts as a strong acid in presence of catechol. Reason : Boric acid does not act as a proton donor but behaves as a Lewis acid.
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:
Metaborate ion gets complexed with catechol. So boric acid acts as strong acid in the presence of catechol. is not a proton donar as all - atoms are with hydrogen bonds. But its a lewis acid due to vacant orbital availablity. So, option (2) is correct.
CHXI11:THE P-BLOCK ELEMENTS
316112
The incorrect statement from the following for borazine is
1 It has electronic delocalization.
2 It can react with water.
3 It is a cyclic compound.
4 It contains banana bonds.
Explanation:
Due to grater difference in electronegativity values of ' B ' & ' N ' atoms electrons are partially delocalised in borazine. It has no banana bond. It is non-polar, cyclic and reacts with water :
316108
Boric acid is solid, whereas is gas at room temperature because of
1 strong hydrogen bond in boric acid
2 strong van der Waals' interaction in boric acid
3 strong ionic bond in boric acid.
4 strong covalent bond in
Explanation:
Boric acid is solid, whereas is gas at room temperature because of strong hydrogen bonding in boric acid.
JEE - 2023
CHXI11:THE P-BLOCK ELEMENTS
316109
Which is correctly matched?
1 Tincal
2 Boric acid
3 Kernite
4 Colemanite
Explanation:
CHXI11:THE P-BLOCK ELEMENTS
316110
In the reaction, functions as
1 Protonic acid
2 Lewis base
3 Bronsted acid
4 Lewis acid.
Explanation:
functions as a Lewis acid as it accepts a pair of electrons from of water by releasing a proton.
KCET - 2019
CHXI11:THE P-BLOCK ELEMENTS
316111
Assertion : Boric acid acts as a strong acid in presence of catechol. Reason : Boric acid does not act as a proton donor but behaves as a Lewis acid.
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:
Metaborate ion gets complexed with catechol. So boric acid acts as strong acid in the presence of catechol. is not a proton donar as all - atoms are with hydrogen bonds. But its a lewis acid due to vacant orbital availablity. So, option (2) is correct.
CHXI11:THE P-BLOCK ELEMENTS
316112
The incorrect statement from the following for borazine is
1 It has electronic delocalization.
2 It can react with water.
3 It is a cyclic compound.
4 It contains banana bonds.
Explanation:
Due to grater difference in electronegativity values of ' B ' & ' N ' atoms electrons are partially delocalised in borazine. It has no banana bond. It is non-polar, cyclic and reacts with water :
316108
Boric acid is solid, whereas is gas at room temperature because of
1 strong hydrogen bond in boric acid
2 strong van der Waals' interaction in boric acid
3 strong ionic bond in boric acid.
4 strong covalent bond in
Explanation:
Boric acid is solid, whereas is gas at room temperature because of strong hydrogen bonding in boric acid.
JEE - 2023
CHXI11:THE P-BLOCK ELEMENTS
316109
Which is correctly matched?
1 Tincal
2 Boric acid
3 Kernite
4 Colemanite
Explanation:
CHXI11:THE P-BLOCK ELEMENTS
316110
In the reaction, functions as
1 Protonic acid
2 Lewis base
3 Bronsted acid
4 Lewis acid.
Explanation:
functions as a Lewis acid as it accepts a pair of electrons from of water by releasing a proton.
KCET - 2019
CHXI11:THE P-BLOCK ELEMENTS
316111
Assertion : Boric acid acts as a strong acid in presence of catechol. Reason : Boric acid does not act as a proton donor but behaves as a Lewis acid.
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:
Metaborate ion gets complexed with catechol. So boric acid acts as strong acid in the presence of catechol. is not a proton donar as all - atoms are with hydrogen bonds. But its a lewis acid due to vacant orbital availablity. So, option (2) is correct.
CHXI11:THE P-BLOCK ELEMENTS
316112
The incorrect statement from the following for borazine is
1 It has electronic delocalization.
2 It can react with water.
3 It is a cyclic compound.
4 It contains banana bonds.
Explanation:
Due to grater difference in electronegativity values of ' B ' & ' N ' atoms electrons are partially delocalised in borazine. It has no banana bond. It is non-polar, cyclic and reacts with water :
316108
Boric acid is solid, whereas is gas at room temperature because of
1 strong hydrogen bond in boric acid
2 strong van der Waals' interaction in boric acid
3 strong ionic bond in boric acid.
4 strong covalent bond in
Explanation:
Boric acid is solid, whereas is gas at room temperature because of strong hydrogen bonding in boric acid.
JEE - 2023
CHXI11:THE P-BLOCK ELEMENTS
316109
Which is correctly matched?
1 Tincal
2 Boric acid
3 Kernite
4 Colemanite
Explanation:
CHXI11:THE P-BLOCK ELEMENTS
316110
In the reaction, functions as
1 Protonic acid
2 Lewis base
3 Bronsted acid
4 Lewis acid.
Explanation:
functions as a Lewis acid as it accepts a pair of electrons from of water by releasing a proton.
KCET - 2019
CHXI11:THE P-BLOCK ELEMENTS
316111
Assertion : Boric acid acts as a strong acid in presence of catechol. Reason : Boric acid does not act as a proton donor but behaves as a Lewis acid.
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:
Metaborate ion gets complexed with catechol. So boric acid acts as strong acid in the presence of catechol. is not a proton donar as all - atoms are with hydrogen bonds. But its a lewis acid due to vacant orbital availablity. So, option (2) is correct.
CHXI11:THE P-BLOCK ELEMENTS
316112
The incorrect statement from the following for borazine is
1 It has electronic delocalization.
2 It can react with water.
3 It is a cyclic compound.
4 It contains banana bonds.
Explanation:
Due to grater difference in electronegativity values of ' B ' & ' N ' atoms electrons are partially delocalised in borazine. It has no banana bond. It is non-polar, cyclic and reacts with water :
316108
Boric acid is solid, whereas is gas at room temperature because of
1 strong hydrogen bond in boric acid
2 strong van der Waals' interaction in boric acid
3 strong ionic bond in boric acid.
4 strong covalent bond in
Explanation:
Boric acid is solid, whereas is gas at room temperature because of strong hydrogen bonding in boric acid.
JEE - 2023
CHXI11:THE P-BLOCK ELEMENTS
316109
Which is correctly matched?
1 Tincal
2 Boric acid
3 Kernite
4 Colemanite
Explanation:
CHXI11:THE P-BLOCK ELEMENTS
316110
In the reaction, functions as
1 Protonic acid
2 Lewis base
3 Bronsted acid
4 Lewis acid.
Explanation:
functions as a Lewis acid as it accepts a pair of electrons from of water by releasing a proton.
KCET - 2019
CHXI11:THE P-BLOCK ELEMENTS
316111
Assertion : Boric acid acts as a strong acid in presence of catechol. Reason : Boric acid does not act as a proton donor but behaves as a Lewis acid.
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:
Metaborate ion gets complexed with catechol. So boric acid acts as strong acid in the presence of catechol. is not a proton donar as all - atoms are with hydrogen bonds. But its a lewis acid due to vacant orbital availablity. So, option (2) is correct.
CHXI11:THE P-BLOCK ELEMENTS
316112
The incorrect statement from the following for borazine is
1 It has electronic delocalization.
2 It can react with water.
3 It is a cyclic compound.
4 It contains banana bonds.
Explanation:
Due to grater difference in electronegativity values of ' B ' & ' N ' atoms electrons are partially delocalised in borazine. It has no banana bond. It is non-polar, cyclic and reacts with water :