Boron and its Compounds
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CHXI11:THE P-BLOCK ELEMENTS

316078 When an inorganic compound \((\mathrm{X})\) having \(3 \mathrm{c}-2 \mathrm{e}\) as well as \(2 \mathrm{c}-2 \mathrm{e}\) bonds reacts with ammonia gas at a certain temperature, gives a compound \((\mathrm{Y})\), isostructural with benzene. Compound (X) with ammonia at a high temperature produces a substance (Z). Identify the correct statement.

1 \({\text{(X) is}}\,\,{{\text{B}}_{\text{2}}}{{\text{H}}_{\text{6}}}\)
2 (Z) is known as inorganic graphite
3 (Y) is \(B_{3} N_{3} H_{6}\)
4 All of these
CHXI11:THE P-BLOCK ELEMENTS

316079 Diborane upon hydrolysis gives

1 boric anhydride
2 metaboric acid
3 orthoboric acid
4 boron oxide
CHXI11:THE P-BLOCK ELEMENTS

316080 In diborane, the two \(\mathrm{H}-\mathrm{B}-\mathrm{H}\) angles are nearly

1 \(60^{\circ}, 120^{\circ}\)
2 \(97^{\circ}, 120^{\circ}\)
3 \(95^{\circ}, 150^{\circ}\)
4 \(120^{\circ}, 180^{\circ}\)
AIIMS - 2006
CHXI11:THE P-BLOCK ELEMENTS

316081 A Lewis acid ' \(\mathrm{X}\) ' reacts with \(\mathrm{LiAlH}_{4}\) in ether medium to give a highly toxic gas. This gas when heated with \(\mathrm{NH}_{3}\) gives a compound commonly known as inorganic benzene. The gas is

1 \(\mathrm{B}_{2} \mathrm{H}_{6}\)
2 \(\mathrm{B}_{3} \mathrm{~N}_{3} \mathrm{H}_{6}\)
3 \(\mathrm{BF}_{3}\)
4 \(\mathrm{B}_{2} \mathrm{O}_{3}\)
KCET - 2020
CHXI11:THE P-BLOCK ELEMENTS

316082 Which of the following is correct?

1 The members of \(\mathrm{B}_{\mathrm{n}} \mathrm{H}_{\mathrm{n}+6}\) are less stable than \(\mathrm{B}_{\mathrm{n}} \mathrm{H}_{\mathrm{n}+4}\) series
2 Diborane is colored and unstable at room temperature
3 The reaction of diborane with oxygen is endothermic
4 All of the above
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CHXI11:THE P-BLOCK ELEMENTS

316078 When an inorganic compound \((\mathrm{X})\) having \(3 \mathrm{c}-2 \mathrm{e}\) as well as \(2 \mathrm{c}-2 \mathrm{e}\) bonds reacts with ammonia gas at a certain temperature, gives a compound \((\mathrm{Y})\), isostructural with benzene. Compound (X) with ammonia at a high temperature produces a substance (Z). Identify the correct statement.

1 \({\text{(X) is}}\,\,{{\text{B}}_{\text{2}}}{{\text{H}}_{\text{6}}}\)
2 (Z) is known as inorganic graphite
3 (Y) is \(B_{3} N_{3} H_{6}\)
4 All of these
CHXI11:THE P-BLOCK ELEMENTS

316079 Diborane upon hydrolysis gives

1 boric anhydride
2 metaboric acid
3 orthoboric acid
4 boron oxide
CHXI11:THE P-BLOCK ELEMENTS

316080 In diborane, the two \(\mathrm{H}-\mathrm{B}-\mathrm{H}\) angles are nearly

1 \(60^{\circ}, 120^{\circ}\)
2 \(97^{\circ}, 120^{\circ}\)
3 \(95^{\circ}, 150^{\circ}\)
4 \(120^{\circ}, 180^{\circ}\)
AIIMS - 2006
CHXI11:THE P-BLOCK ELEMENTS

316081 A Lewis acid ' \(\mathrm{X}\) ' reacts with \(\mathrm{LiAlH}_{4}\) in ether medium to give a highly toxic gas. This gas when heated with \(\mathrm{NH}_{3}\) gives a compound commonly known as inorganic benzene. The gas is

1 \(\mathrm{B}_{2} \mathrm{H}_{6}\)
2 \(\mathrm{B}_{3} \mathrm{~N}_{3} \mathrm{H}_{6}\)
3 \(\mathrm{BF}_{3}\)
4 \(\mathrm{B}_{2} \mathrm{O}_{3}\)
KCET - 2020
CHXI11:THE P-BLOCK ELEMENTS

316082 Which of the following is correct?

1 The members of \(\mathrm{B}_{\mathrm{n}} \mathrm{H}_{\mathrm{n}+6}\) are less stable than \(\mathrm{B}_{\mathrm{n}} \mathrm{H}_{\mathrm{n}+4}\) series
2 Diborane is colored and unstable at room temperature
3 The reaction of diborane with oxygen is endothermic
4 All of the above
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CHXI11:THE P-BLOCK ELEMENTS

316078 When an inorganic compound \((\mathrm{X})\) having \(3 \mathrm{c}-2 \mathrm{e}\) as well as \(2 \mathrm{c}-2 \mathrm{e}\) bonds reacts with ammonia gas at a certain temperature, gives a compound \((\mathrm{Y})\), isostructural with benzene. Compound (X) with ammonia at a high temperature produces a substance (Z). Identify the correct statement.

1 \({\text{(X) is}}\,\,{{\text{B}}_{\text{2}}}{{\text{H}}_{\text{6}}}\)
2 (Z) is known as inorganic graphite
3 (Y) is \(B_{3} N_{3} H_{6}\)
4 All of these
CHXI11:THE P-BLOCK ELEMENTS

316079 Diborane upon hydrolysis gives

1 boric anhydride
2 metaboric acid
3 orthoboric acid
4 boron oxide
CHXI11:THE P-BLOCK ELEMENTS

316080 In diborane, the two \(\mathrm{H}-\mathrm{B}-\mathrm{H}\) angles are nearly

1 \(60^{\circ}, 120^{\circ}\)
2 \(97^{\circ}, 120^{\circ}\)
3 \(95^{\circ}, 150^{\circ}\)
4 \(120^{\circ}, 180^{\circ}\)
AIIMS - 2006
CHXI11:THE P-BLOCK ELEMENTS

316081 A Lewis acid ' \(\mathrm{X}\) ' reacts with \(\mathrm{LiAlH}_{4}\) in ether medium to give a highly toxic gas. This gas when heated with \(\mathrm{NH}_{3}\) gives a compound commonly known as inorganic benzene. The gas is

1 \(\mathrm{B}_{2} \mathrm{H}_{6}\)
2 \(\mathrm{B}_{3} \mathrm{~N}_{3} \mathrm{H}_{6}\)
3 \(\mathrm{BF}_{3}\)
4 \(\mathrm{B}_{2} \mathrm{O}_{3}\)
KCET - 2020
CHXI11:THE P-BLOCK ELEMENTS

316082 Which of the following is correct?

1 The members of \(\mathrm{B}_{\mathrm{n}} \mathrm{H}_{\mathrm{n}+6}\) are less stable than \(\mathrm{B}_{\mathrm{n}} \mathrm{H}_{\mathrm{n}+4}\) series
2 Diborane is colored and unstable at room temperature
3 The reaction of diborane with oxygen is endothermic
4 All of the above
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CHXI11:THE P-BLOCK ELEMENTS

316078 When an inorganic compound \((\mathrm{X})\) having \(3 \mathrm{c}-2 \mathrm{e}\) as well as \(2 \mathrm{c}-2 \mathrm{e}\) bonds reacts with ammonia gas at a certain temperature, gives a compound \((\mathrm{Y})\), isostructural with benzene. Compound (X) with ammonia at a high temperature produces a substance (Z). Identify the correct statement.

1 \({\text{(X) is}}\,\,{{\text{B}}_{\text{2}}}{{\text{H}}_{\text{6}}}\)
2 (Z) is known as inorganic graphite
3 (Y) is \(B_{3} N_{3} H_{6}\)
4 All of these
CHXI11:THE P-BLOCK ELEMENTS

316079 Diborane upon hydrolysis gives

1 boric anhydride
2 metaboric acid
3 orthoboric acid
4 boron oxide
CHXI11:THE P-BLOCK ELEMENTS

316080 In diborane, the two \(\mathrm{H}-\mathrm{B}-\mathrm{H}\) angles are nearly

1 \(60^{\circ}, 120^{\circ}\)
2 \(97^{\circ}, 120^{\circ}\)
3 \(95^{\circ}, 150^{\circ}\)
4 \(120^{\circ}, 180^{\circ}\)
AIIMS - 2006
CHXI11:THE P-BLOCK ELEMENTS

316081 A Lewis acid ' \(\mathrm{X}\) ' reacts with \(\mathrm{LiAlH}_{4}\) in ether medium to give a highly toxic gas. This gas when heated with \(\mathrm{NH}_{3}\) gives a compound commonly known as inorganic benzene. The gas is

1 \(\mathrm{B}_{2} \mathrm{H}_{6}\)
2 \(\mathrm{B}_{3} \mathrm{~N}_{3} \mathrm{H}_{6}\)
3 \(\mathrm{BF}_{3}\)
4 \(\mathrm{B}_{2} \mathrm{O}_{3}\)
KCET - 2020
CHXI11:THE P-BLOCK ELEMENTS

316082 Which of the following is correct?

1 The members of \(\mathrm{B}_{\mathrm{n}} \mathrm{H}_{\mathrm{n}+6}\) are less stable than \(\mathrm{B}_{\mathrm{n}} \mathrm{H}_{\mathrm{n}+4}\) series
2 Diborane is colored and unstable at room temperature
3 The reaction of diborane with oxygen is endothermic
4 All of the above
Join With Us for More Updates
CHXI11:THE P-BLOCK ELEMENTS

316078 When an inorganic compound \((\mathrm{X})\) having \(3 \mathrm{c}-2 \mathrm{e}\) as well as \(2 \mathrm{c}-2 \mathrm{e}\) bonds reacts with ammonia gas at a certain temperature, gives a compound \((\mathrm{Y})\), isostructural with benzene. Compound (X) with ammonia at a high temperature produces a substance (Z). Identify the correct statement.

1 \({\text{(X) is}}\,\,{{\text{B}}_{\text{2}}}{{\text{H}}_{\text{6}}}\)
2 (Z) is known as inorganic graphite
3 (Y) is \(B_{3} N_{3} H_{6}\)
4 All of these
CHXI11:THE P-BLOCK ELEMENTS

316079 Diborane upon hydrolysis gives

1 boric anhydride
2 metaboric acid
3 orthoboric acid
4 boron oxide
CHXI11:THE P-BLOCK ELEMENTS

316080 In diborane, the two \(\mathrm{H}-\mathrm{B}-\mathrm{H}\) angles are nearly

1 \(60^{\circ}, 120^{\circ}\)
2 \(97^{\circ}, 120^{\circ}\)
3 \(95^{\circ}, 150^{\circ}\)
4 \(120^{\circ}, 180^{\circ}\)
AIIMS - 2006
CHXI11:THE P-BLOCK ELEMENTS

316081 A Lewis acid ' \(\mathrm{X}\) ' reacts with \(\mathrm{LiAlH}_{4}\) in ether medium to give a highly toxic gas. This gas when heated with \(\mathrm{NH}_{3}\) gives a compound commonly known as inorganic benzene. The gas is

1 \(\mathrm{B}_{2} \mathrm{H}_{6}\)
2 \(\mathrm{B}_{3} \mathrm{~N}_{3} \mathrm{H}_{6}\)
3 \(\mathrm{BF}_{3}\)
4 \(\mathrm{B}_{2} \mathrm{O}_{3}\)
KCET - 2020
CHXI11:THE P-BLOCK ELEMENTS

316082 Which of the following is correct?

1 The members of \(\mathrm{B}_{\mathrm{n}} \mathrm{H}_{\mathrm{n}+6}\) are less stable than \(\mathrm{B}_{\mathrm{n}} \mathrm{H}_{\mathrm{n}+4}\) series
2 Diborane is colored and unstable at room temperature
3 The reaction of diborane with oxygen is endothermic
4 All of the above