316117
Assertion : \(\mathrm{B}_{2} \mathrm{H}_{6}\) contains three centre two electron bonds. Reason : \(\mathrm{B}_{2} \mathrm{H}_{6}\) is electron deficient 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:
Diborane does not have sufficient electrons to form normal covalent bonds, therefore it forms three centre - 2electron bonds. So, option (1) is correct.
CHXI11:THE P-BLOCK ELEMENTS
316118
The number of double bonds in borazine is
1 2
2 4
3 3
4 1
Explanation:
The structure of borazine is as follows:
CHXI11:THE P-BLOCK ELEMENTS
316119
Which of the following is similar to graphite
1 \(\mathrm{B}\)
2 \(\mathrm{BN}\)
3 \(\mathrm{B}_{2} \mathrm{H}_{6}\)
4 \(\mathrm{B}_{4} \mathrm{C}\)
Explanation:
Graphite and boron nitride have similar structure.
CHXI11:THE P-BLOCK ELEMENTS
316120
Number of boron atoms present in one hexagonal ring of inorganic graphite is
1 1
2 2
3 3
4 6
Explanation:
Boron nitride (BN) is called inorganic benzene. Its structure is similar to graphite.
316117
Assertion : \(\mathrm{B}_{2} \mathrm{H}_{6}\) contains three centre two electron bonds. Reason : \(\mathrm{B}_{2} \mathrm{H}_{6}\) is electron deficient 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:
Diborane does not have sufficient electrons to form normal covalent bonds, therefore it forms three centre - 2electron bonds. So, option (1) is correct.
CHXI11:THE P-BLOCK ELEMENTS
316118
The number of double bonds in borazine is
1 2
2 4
3 3
4 1
Explanation:
The structure of borazine is as follows:
CHXI11:THE P-BLOCK ELEMENTS
316119
Which of the following is similar to graphite
1 \(\mathrm{B}\)
2 \(\mathrm{BN}\)
3 \(\mathrm{B}_{2} \mathrm{H}_{6}\)
4 \(\mathrm{B}_{4} \mathrm{C}\)
Explanation:
Graphite and boron nitride have similar structure.
CHXI11:THE P-BLOCK ELEMENTS
316120
Number of boron atoms present in one hexagonal ring of inorganic graphite is
1 1
2 2
3 3
4 6
Explanation:
Boron nitride (BN) is called inorganic benzene. Its structure is similar to graphite.
316117
Assertion : \(\mathrm{B}_{2} \mathrm{H}_{6}\) contains three centre two electron bonds. Reason : \(\mathrm{B}_{2} \mathrm{H}_{6}\) is electron deficient 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:
Diborane does not have sufficient electrons to form normal covalent bonds, therefore it forms three centre - 2electron bonds. So, option (1) is correct.
CHXI11:THE P-BLOCK ELEMENTS
316118
The number of double bonds in borazine is
1 2
2 4
3 3
4 1
Explanation:
The structure of borazine is as follows:
CHXI11:THE P-BLOCK ELEMENTS
316119
Which of the following is similar to graphite
1 \(\mathrm{B}\)
2 \(\mathrm{BN}\)
3 \(\mathrm{B}_{2} \mathrm{H}_{6}\)
4 \(\mathrm{B}_{4} \mathrm{C}\)
Explanation:
Graphite and boron nitride have similar structure.
CHXI11:THE P-BLOCK ELEMENTS
316120
Number of boron atoms present in one hexagonal ring of inorganic graphite is
1 1
2 2
3 3
4 6
Explanation:
Boron nitride (BN) is called inorganic benzene. Its structure is similar to graphite.
316117
Assertion : \(\mathrm{B}_{2} \mathrm{H}_{6}\) contains three centre two electron bonds. Reason : \(\mathrm{B}_{2} \mathrm{H}_{6}\) is electron deficient 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:
Diborane does not have sufficient electrons to form normal covalent bonds, therefore it forms three centre - 2electron bonds. So, option (1) is correct.
CHXI11:THE P-BLOCK ELEMENTS
316118
The number of double bonds in borazine is
1 2
2 4
3 3
4 1
Explanation:
The structure of borazine is as follows:
CHXI11:THE P-BLOCK ELEMENTS
316119
Which of the following is similar to graphite
1 \(\mathrm{B}\)
2 \(\mathrm{BN}\)
3 \(\mathrm{B}_{2} \mathrm{H}_{6}\)
4 \(\mathrm{B}_{4} \mathrm{C}\)
Explanation:
Graphite and boron nitride have similar structure.
CHXI11:THE P-BLOCK ELEMENTS
316120
Number of boron atoms present in one hexagonal ring of inorganic graphite is
1 1
2 2
3 3
4 6
Explanation:
Boron nitride (BN) is called inorganic benzene. Its structure is similar to graphite.
