Boron and its Compounds
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CHXI11:THE P-BLOCK ELEMENTS

316041 Isomers of \({{\text{B}}_{\text{3}}}{{\text{N}}_{\text{3}}}{{\text{H}}_{\text{4}}}{{\text{X}}_{\text{2}}}\) is

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

316042 The main factor responsible for weak acidic nature of \(\mathrm{B}-\mathrm{F}\) bonds in \(\mathrm{BF}_{3}\) is

1 large electronegativity of \(\mathrm{F}\)
2 \({\rm{p\pi }}\,\,{\rm{ - }}\,\,{\rm{p\pi }}\) back bonding
3 \({\rm{p\pi - d\pi }}\) back bonding
4 three centred two electron bonds is \(B F_{3}\).
CHXI11:THE P-BLOCK ELEMENTS

316043 Mark the wrong statement regarding \({\text{B}}{{\text{F}}_{\text{3}}}\)

1 It acts as a Lewis acid
2 If forms an addition compound with \(\mathrm{NH}_{3}\)
3 It is a Volatile liquid at room temperature
4 It combines with ether to form boron trifluorides etherate
CHXI11:THE P-BLOCK ELEMENTS

316044 Maximum \(\mathrm{p} \pi-\mathrm{p} \pi\) back bonding exists in

1 \(\mathrm{BCl}_{3}\)
2 \(\mathrm{BF}_{3}\)
3 \(\mathrm{BBr}_{3}\)
4 \(\mathrm{BI}_{3}\)
NEET DIGITAL LIBRARY
CHXI11:THE P-BLOCK ELEMENTS

316041 Isomers of \({{\text{B}}_{\text{3}}}{{\text{N}}_{\text{3}}}{{\text{H}}_{\text{4}}}{{\text{X}}_{\text{2}}}\) is

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

316042 The main factor responsible for weak acidic nature of \(\mathrm{B}-\mathrm{F}\) bonds in \(\mathrm{BF}_{3}\) is

1 large electronegativity of \(\mathrm{F}\)
2 \({\rm{p\pi }}\,\,{\rm{ - }}\,\,{\rm{p\pi }}\) back bonding
3 \({\rm{p\pi - d\pi }}\) back bonding
4 three centred two electron bonds is \(B F_{3}\).
CHXI11:THE P-BLOCK ELEMENTS

316043 Mark the wrong statement regarding \({\text{B}}{{\text{F}}_{\text{3}}}\)

1 It acts as a Lewis acid
2 If forms an addition compound with \(\mathrm{NH}_{3}\)
3 It is a Volatile liquid at room temperature
4 It combines with ether to form boron trifluorides etherate
CHXI11:THE P-BLOCK ELEMENTS

316044 Maximum \(\mathrm{p} \pi-\mathrm{p} \pi\) back bonding exists in

1 \(\mathrm{BCl}_{3}\)
2 \(\mathrm{BF}_{3}\)
3 \(\mathrm{BBr}_{3}\)
4 \(\mathrm{BI}_{3}\)
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CHXI11:THE P-BLOCK ELEMENTS

316041 Isomers of \({{\text{B}}_{\text{3}}}{{\text{N}}_{\text{3}}}{{\text{H}}_{\text{4}}}{{\text{X}}_{\text{2}}}\) is

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

316042 The main factor responsible for weak acidic nature of \(\mathrm{B}-\mathrm{F}\) bonds in \(\mathrm{BF}_{3}\) is

1 large electronegativity of \(\mathrm{F}\)
2 \({\rm{p\pi }}\,\,{\rm{ - }}\,\,{\rm{p\pi }}\) back bonding
3 \({\rm{p\pi - d\pi }}\) back bonding
4 three centred two electron bonds is \(B F_{3}\).
CHXI11:THE P-BLOCK ELEMENTS

316043 Mark the wrong statement regarding \({\text{B}}{{\text{F}}_{\text{3}}}\)

1 It acts as a Lewis acid
2 If forms an addition compound with \(\mathrm{NH}_{3}\)
3 It is a Volatile liquid at room temperature
4 It combines with ether to form boron trifluorides etherate
CHXI11:THE P-BLOCK ELEMENTS

316044 Maximum \(\mathrm{p} \pi-\mathrm{p} \pi\) back bonding exists in

1 \(\mathrm{BCl}_{3}\)
2 \(\mathrm{BF}_{3}\)
3 \(\mathrm{BBr}_{3}\)
4 \(\mathrm{BI}_{3}\)
For More Updates join with Us
CHXI11:THE P-BLOCK ELEMENTS

316041 Isomers of \({{\text{B}}_{\text{3}}}{{\text{N}}_{\text{3}}}{{\text{H}}_{\text{4}}}{{\text{X}}_{\text{2}}}\) is

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

316042 The main factor responsible for weak acidic nature of \(\mathrm{B}-\mathrm{F}\) bonds in \(\mathrm{BF}_{3}\) is

1 large electronegativity of \(\mathrm{F}\)
2 \({\rm{p\pi }}\,\,{\rm{ - }}\,\,{\rm{p\pi }}\) back bonding
3 \({\rm{p\pi - d\pi }}\) back bonding
4 three centred two electron bonds is \(B F_{3}\).
CHXI11:THE P-BLOCK ELEMENTS

316043 Mark the wrong statement regarding \({\text{B}}{{\text{F}}_{\text{3}}}\)

1 It acts as a Lewis acid
2 If forms an addition compound with \(\mathrm{NH}_{3}\)
3 It is a Volatile liquid at room temperature
4 It combines with ether to form boron trifluorides etherate
CHXI11:THE P-BLOCK ELEMENTS

316044 Maximum \(\mathrm{p} \pi-\mathrm{p} \pi\) back bonding exists in

1 \(\mathrm{BCl}_{3}\)
2 \(\mathrm{BF}_{3}\)
3 \(\mathrm{BBr}_{3}\)
4 \(\mathrm{BI}_{3}\)
NEET DIGITAL LIBRARY