11. THE P-BLOCK ELEMENTS
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11. THE P-BLOCK ELEMENTS

189646 Anhydrous \(AlC{l_3}\) cannot be obtained from which of the following reactions

1 Heating \(AlC{l_3}.6{H_2}O\)
2 By passing dry \(HCl\) over hot aluminium powder
3 By passing dry \(C{l_2}\) over hot aluminium powder
4 By passing dry \(C{l_2}\) over a hot mixture of alumina and coke
11. THE P-BLOCK ELEMENTS

190055 Match List\(-I\) with List\(-II :\)List\(-I\)
List\(-II\)


\((a)\) \(\mathrm{NaOH}\)
\((i)\) Acidic


\((b)\) \(\mathrm{Be}(\mathrm{OH})_{2}\)
\((ii)\) Basic


\((c)\) \(\mathrm{Ca}(\mathrm{OH})_{2}\)

\((iii)\) Amphoteric



\((d)\) \(\mathrm{B}(\mathrm{OH})_{3}\)
 


\((e)\) \(\mathrm{Al}(\mathrm{OH})_{3}\)Choose the most appropriate answer from the option given below :

1 \((a)-(ii), (b)-(ii), (c)-(iii), (d)-(ii), (e)-(iii)\)
2 \((a)-(ii), (b)-(iii), (c)-(ii), (d)-(i), (e)-(iii)\)
3 \((a)-(ii), (b)-(ii), (c)-(iii), (d)-(i), (e)-(iii)\)
4 \((a)-(ii), (b)-(i), (c)-(ii), (d)-(iii), (e)-(iii)\)
11. THE P-BLOCK ELEMENTS

190056 The tendency to form monovalent compounds among the Group \(13\) elements is correctly exhibited in :

1 \(B < Al < Ga < In < Tl\)
2 \(Tl < In < Ga < Al < B\)
3 \(Tl \approx In < Ga < Al < B\)
4 \(B \approx Al \approx Ga \approx In \approx Tl\)
11. THE P-BLOCK ELEMENTS

190058 Which of the following statement is not correct about diborane?

1 The four terminal \(B-H\) bonds are two centre two electron bonds.
2 The four terminal Hydrogen atoms and the two Boron atoms lie in one plane.
3 Both the Boron atoms are \(s p^{2}\) hybridised.
4 There are two \(3-\)centre\(-2-\)electron bonds.
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11. THE P-BLOCK ELEMENTS

189646 Anhydrous \(AlC{l_3}\) cannot be obtained from which of the following reactions

1 Heating \(AlC{l_3}.6{H_2}O\)
2 By passing dry \(HCl\) over hot aluminium powder
3 By passing dry \(C{l_2}\) over hot aluminium powder
4 By passing dry \(C{l_2}\) over a hot mixture of alumina and coke
11. THE P-BLOCK ELEMENTS

190055 Match List\(-I\) with List\(-II :\)List\(-I\)
List\(-II\)


\((a)\) \(\mathrm{NaOH}\)
\((i)\) Acidic


\((b)\) \(\mathrm{Be}(\mathrm{OH})_{2}\)
\((ii)\) Basic


\((c)\) \(\mathrm{Ca}(\mathrm{OH})_{2}\)

\((iii)\) Amphoteric



\((d)\) \(\mathrm{B}(\mathrm{OH})_{3}\)
 


\((e)\) \(\mathrm{Al}(\mathrm{OH})_{3}\)Choose the most appropriate answer from the option given below :

1 \((a)-(ii), (b)-(ii), (c)-(iii), (d)-(ii), (e)-(iii)\)
2 \((a)-(ii), (b)-(iii), (c)-(ii), (d)-(i), (e)-(iii)\)
3 \((a)-(ii), (b)-(ii), (c)-(iii), (d)-(i), (e)-(iii)\)
4 \((a)-(ii), (b)-(i), (c)-(ii), (d)-(iii), (e)-(iii)\)
11. THE P-BLOCK ELEMENTS

190056 The tendency to form monovalent compounds among the Group \(13\) elements is correctly exhibited in :

1 \(B < Al < Ga < In < Tl\)
2 \(Tl < In < Ga < Al < B\)
3 \(Tl \approx In < Ga < Al < B\)
4 \(B \approx Al \approx Ga \approx In \approx Tl\)
11. THE P-BLOCK ELEMENTS

190058 Which of the following statement is not correct about diborane?

1 The four terminal \(B-H\) bonds are two centre two electron bonds.
2 The four terminal Hydrogen atoms and the two Boron atoms lie in one plane.
3 Both the Boron atoms are \(s p^{2}\) hybridised.
4 There are two \(3-\)centre\(-2-\)electron bonds.
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11. THE P-BLOCK ELEMENTS

189646 Anhydrous \(AlC{l_3}\) cannot be obtained from which of the following reactions

1 Heating \(AlC{l_3}.6{H_2}O\)
2 By passing dry \(HCl\) over hot aluminium powder
3 By passing dry \(C{l_2}\) over hot aluminium powder
4 By passing dry \(C{l_2}\) over a hot mixture of alumina and coke
11. THE P-BLOCK ELEMENTS

190055 Match List\(-I\) with List\(-II :\)List\(-I\)
List\(-II\)


\((a)\) \(\mathrm{NaOH}\)
\((i)\) Acidic


\((b)\) \(\mathrm{Be}(\mathrm{OH})_{2}\)
\((ii)\) Basic


\((c)\) \(\mathrm{Ca}(\mathrm{OH})_{2}\)

\((iii)\) Amphoteric



\((d)\) \(\mathrm{B}(\mathrm{OH})_{3}\)
 


\((e)\) \(\mathrm{Al}(\mathrm{OH})_{3}\)Choose the most appropriate answer from the option given below :

1 \((a)-(ii), (b)-(ii), (c)-(iii), (d)-(ii), (e)-(iii)\)
2 \((a)-(ii), (b)-(iii), (c)-(ii), (d)-(i), (e)-(iii)\)
3 \((a)-(ii), (b)-(ii), (c)-(iii), (d)-(i), (e)-(iii)\)
4 \((a)-(ii), (b)-(i), (c)-(ii), (d)-(iii), (e)-(iii)\)
11. THE P-BLOCK ELEMENTS

190056 The tendency to form monovalent compounds among the Group \(13\) elements is correctly exhibited in :

1 \(B < Al < Ga < In < Tl\)
2 \(Tl < In < Ga < Al < B\)
3 \(Tl \approx In < Ga < Al < B\)
4 \(B \approx Al \approx Ga \approx In \approx Tl\)
11. THE P-BLOCK ELEMENTS

190058 Which of the following statement is not correct about diborane?

1 The four terminal \(B-H\) bonds are two centre two electron bonds.
2 The four terminal Hydrogen atoms and the two Boron atoms lie in one plane.
3 Both the Boron atoms are \(s p^{2}\) hybridised.
4 There are two \(3-\)centre\(-2-\)electron bonds.
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11. THE P-BLOCK ELEMENTS

189646 Anhydrous \(AlC{l_3}\) cannot be obtained from which of the following reactions

1 Heating \(AlC{l_3}.6{H_2}O\)
2 By passing dry \(HCl\) over hot aluminium powder
3 By passing dry \(C{l_2}\) over hot aluminium powder
4 By passing dry \(C{l_2}\) over a hot mixture of alumina and coke
11. THE P-BLOCK ELEMENTS

190055 Match List\(-I\) with List\(-II :\)List\(-I\)
List\(-II\)


\((a)\) \(\mathrm{NaOH}\)
\((i)\) Acidic


\((b)\) \(\mathrm{Be}(\mathrm{OH})_{2}\)
\((ii)\) Basic


\((c)\) \(\mathrm{Ca}(\mathrm{OH})_{2}\)

\((iii)\) Amphoteric



\((d)\) \(\mathrm{B}(\mathrm{OH})_{3}\)
 


\((e)\) \(\mathrm{Al}(\mathrm{OH})_{3}\)Choose the most appropriate answer from the option given below :

1 \((a)-(ii), (b)-(ii), (c)-(iii), (d)-(ii), (e)-(iii)\)
2 \((a)-(ii), (b)-(iii), (c)-(ii), (d)-(i), (e)-(iii)\)
3 \((a)-(ii), (b)-(ii), (c)-(iii), (d)-(i), (e)-(iii)\)
4 \((a)-(ii), (b)-(i), (c)-(ii), (d)-(iii), (e)-(iii)\)
11. THE P-BLOCK ELEMENTS

190056 The tendency to form monovalent compounds among the Group \(13\) elements is correctly exhibited in :

1 \(B < Al < Ga < In < Tl\)
2 \(Tl < In < Ga < Al < B\)
3 \(Tl \approx In < Ga < Al < B\)
4 \(B \approx Al \approx Ga \approx In \approx Tl\)
11. THE P-BLOCK ELEMENTS

190058 Which of the following statement is not correct about diborane?

1 The four terminal \(B-H\) bonds are two centre two electron bonds.
2 The four terminal Hydrogen atoms and the two Boron atoms lie in one plane.
3 Both the Boron atoms are \(s p^{2}\) hybridised.
4 There are two \(3-\)centre\(-2-\)electron bonds.
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