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Q. No.
Among the following statements, the correct set of statements are:
a. \(B_2H_6 \) is Lewis acid.
b. \(B_2H_6 \) has a planar structure.
c. All B-H Bond lengths are equal in \(B_2H_6 \).
d. In \(B_2H_6,\) four \(3C-2e^- \) bonds are present.
e. \(B_2H_6 \) can be prepared by the reaction of \(BF_3 \) and \(NaBH_4 \).
 
1. a, b, c, d, e 2. a, e
3. a, b 4. d, e
Subtopic:  Compounds of Boron- Preparations, Properties & Uses |
 52%
Level 3: 35%-60%
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The correct statement about B2H6 is:

1. The terminal B–H bonds have less p-character when compared to bridging bonds.
2. The two B–H–B bonds are not of the same length.
3. All B–H–B angles are 120°.
4. Its fragment, BH3, behaves as a Lewis base.
Subtopic:  Compounds of Boron- Preparations, Properties & Uses |
 53%
Level 3: 35%-60%
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Diborane (B2H6) reacts independently with O2 and H2O to produce, respectively:

1.  H3BO3andB2O3
2. B2O3andH3BO3
3. B2O3and[BH4]-
4. HBO2andH3BO3

Subtopic:  Compounds of Boron- Preparations, Properties & Uses |
 76%
Level 2: 60%+
JEE
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The structure of diborane (B2H6) contains:

1. four 2C-2e- bonds and four 3C-2e- bonds
2. two 2C-2e- bonds and two 3C-3e- bonds
3. two 2C-2e- bonds and four 3C-2e- bonds
4. four 2C-2e- bonds and two 3C-2e- bonds

Subtopic:  Compounds of Boron- Preparations, Properties & Uses |
 80%
Level 1: 80%+
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