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

190083 For a good quality cement, the ratio of silica to alumina is found to be

1 \(3\)
2 \(4.5\)
3 \(2\)
4 \(1.5\)
11. THE P-BLOCK ELEMENTS

190084 Match List\(-I\) with List\(-II\).List\(-I\)
List\(-II\)


\(A\) Coke
\(I\) Carbon atoms are \(sp ^3\) hybridised


\(B\) Diamond
\(II\) Used as a dry lubricant


\(C\) Fullerene
\(III\)  Used as a reducing agent


\(D\) Graphite
\(IV\) Cage like moleculesChoose the correct answer from the options given below :

1 \(A-III, B-IV, C-I, D-II\)
2 \(A-II, B-IV, C-I, D-III\)
3 \(A-IV, B-I, C-II, D-III\)
4 \(A-III, B-I, C-IV, D-II\)
11. THE P-BLOCK ELEMENTS

190085 Given below are two statements : one is labelled as Assertion \((A)\) and the other is labelled as Reason \((R).\)Assertion \((A)\) : Melting point of Boron (\(2453\ K\)) is unusually high in group \(13\) elements.Reason \((R)\) : Solid Boron has very strong crystalline lattice.In the light of the above statements, choose the most appropriate answer from the options given below ;

1 Both \((A)\) and \((R)\) are correct but \((R)\) Is not the correct explanation of \((\mathrm{A})\)
2 Both \((A)\) and \((R)\) are correct and \((R)\) is the correct explanation of \((\mathrm{A})\)
3 \((A)\) is true but \((R)\) is false
4 \((A)\) is false but \((R)\) is true
11. THE P-BLOCK ELEMENTS

190086 Given below are two statements :Statement \(I\) : The electronegativity of group \(14\) elements from \(\mathrm{Si}\) to \(\mathrm{Pb}\) gradually decreases.Statement \(II\) : Group \(14\) contains non-metallic, metallic, as well as metalloid elements.In the light of the above statements, choose the most appropriate from the options given below :

1 Statement \(I\) is false but Statement \(II\) is true
2 Statement \(I\) is true but Statement \(II\) is false
3 Both Statement \(I\) and Statement \(II\) are true
4 Both Statement \(I\) and Statement \(II\) are false
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11. THE P-BLOCK ELEMENTS

190083 For a good quality cement, the ratio of silica to alumina is found to be

1 \(3\)
2 \(4.5\)
3 \(2\)
4 \(1.5\)
11. THE P-BLOCK ELEMENTS

190084 Match List\(-I\) with List\(-II\).List\(-I\)
List\(-II\)


\(A\) Coke
\(I\) Carbon atoms are \(sp ^3\) hybridised


\(B\) Diamond
\(II\) Used as a dry lubricant


\(C\) Fullerene
\(III\)  Used as a reducing agent


\(D\) Graphite
\(IV\) Cage like moleculesChoose the correct answer from the options given below :

1 \(A-III, B-IV, C-I, D-II\)
2 \(A-II, B-IV, C-I, D-III\)
3 \(A-IV, B-I, C-II, D-III\)
4 \(A-III, B-I, C-IV, D-II\)
11. THE P-BLOCK ELEMENTS

190085 Given below are two statements : one is labelled as Assertion \((A)\) and the other is labelled as Reason \((R).\)Assertion \((A)\) : Melting point of Boron (\(2453\ K\)) is unusually high in group \(13\) elements.Reason \((R)\) : Solid Boron has very strong crystalline lattice.In the light of the above statements, choose the most appropriate answer from the options given below ;

1 Both \((A)\) and \((R)\) are correct but \((R)\) Is not the correct explanation of \((\mathrm{A})\)
2 Both \((A)\) and \((R)\) are correct and \((R)\) is the correct explanation of \((\mathrm{A})\)
3 \((A)\) is true but \((R)\) is false
4 \((A)\) is false but \((R)\) is true
11. THE P-BLOCK ELEMENTS

190086 Given below are two statements :Statement \(I\) : The electronegativity of group \(14\) elements from \(\mathrm{Si}\) to \(\mathrm{Pb}\) gradually decreases.Statement \(II\) : Group \(14\) contains non-metallic, metallic, as well as metalloid elements.In the light of the above statements, choose the most appropriate from the options given below :

1 Statement \(I\) is false but Statement \(II\) is true
2 Statement \(I\) is true but Statement \(II\) is false
3 Both Statement \(I\) and Statement \(II\) are true
4 Both Statement \(I\) and Statement \(II\) are false
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11. THE P-BLOCK ELEMENTS

190083 For a good quality cement, the ratio of silica to alumina is found to be

1 \(3\)
2 \(4.5\)
3 \(2\)
4 \(1.5\)
11. THE P-BLOCK ELEMENTS

190084 Match List\(-I\) with List\(-II\).List\(-I\)
List\(-II\)


\(A\) Coke
\(I\) Carbon atoms are \(sp ^3\) hybridised


\(B\) Diamond
\(II\) Used as a dry lubricant


\(C\) Fullerene
\(III\)  Used as a reducing agent


\(D\) Graphite
\(IV\) Cage like moleculesChoose the correct answer from the options given below :

1 \(A-III, B-IV, C-I, D-II\)
2 \(A-II, B-IV, C-I, D-III\)
3 \(A-IV, B-I, C-II, D-III\)
4 \(A-III, B-I, C-IV, D-II\)
11. THE P-BLOCK ELEMENTS

190085 Given below are two statements : one is labelled as Assertion \((A)\) and the other is labelled as Reason \((R).\)Assertion \((A)\) : Melting point of Boron (\(2453\ K\)) is unusually high in group \(13\) elements.Reason \((R)\) : Solid Boron has very strong crystalline lattice.In the light of the above statements, choose the most appropriate answer from the options given below ;

1 Both \((A)\) and \((R)\) are correct but \((R)\) Is not the correct explanation of \((\mathrm{A})\)
2 Both \((A)\) and \((R)\) are correct and \((R)\) is the correct explanation of \((\mathrm{A})\)
3 \((A)\) is true but \((R)\) is false
4 \((A)\) is false but \((R)\) is true
11. THE P-BLOCK ELEMENTS

190086 Given below are two statements :Statement \(I\) : The electronegativity of group \(14\) elements from \(\mathrm{Si}\) to \(\mathrm{Pb}\) gradually decreases.Statement \(II\) : Group \(14\) contains non-metallic, metallic, as well as metalloid elements.In the light of the above statements, choose the most appropriate from the options given below :

1 Statement \(I\) is false but Statement \(II\) is true
2 Statement \(I\) is true but Statement \(II\) is false
3 Both Statement \(I\) and Statement \(II\) are true
4 Both Statement \(I\) and Statement \(II\) are false
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11. THE P-BLOCK ELEMENTS

190083 For a good quality cement, the ratio of silica to alumina is found to be

1 \(3\)
2 \(4.5\)
3 \(2\)
4 \(1.5\)
11. THE P-BLOCK ELEMENTS

190084 Match List\(-I\) with List\(-II\).List\(-I\)
List\(-II\)


\(A\) Coke
\(I\) Carbon atoms are \(sp ^3\) hybridised


\(B\) Diamond
\(II\) Used as a dry lubricant


\(C\) Fullerene
\(III\)  Used as a reducing agent


\(D\) Graphite
\(IV\) Cage like moleculesChoose the correct answer from the options given below :

1 \(A-III, B-IV, C-I, D-II\)
2 \(A-II, B-IV, C-I, D-III\)
3 \(A-IV, B-I, C-II, D-III\)
4 \(A-III, B-I, C-IV, D-II\)
11. THE P-BLOCK ELEMENTS

190085 Given below are two statements : one is labelled as Assertion \((A)\) and the other is labelled as Reason \((R).\)Assertion \((A)\) : Melting point of Boron (\(2453\ K\)) is unusually high in group \(13\) elements.Reason \((R)\) : Solid Boron has very strong crystalline lattice.In the light of the above statements, choose the most appropriate answer from the options given below ;

1 Both \((A)\) and \((R)\) are correct but \((R)\) Is not the correct explanation of \((\mathrm{A})\)
2 Both \((A)\) and \((R)\) are correct and \((R)\) is the correct explanation of \((\mathrm{A})\)
3 \((A)\) is true but \((R)\) is false
4 \((A)\) is false but \((R)\) is true
11. THE P-BLOCK ELEMENTS

190086 Given below are two statements :Statement \(I\) : The electronegativity of group \(14\) elements from \(\mathrm{Si}\) to \(\mathrm{Pb}\) gradually decreases.Statement \(II\) : Group \(14\) contains non-metallic, metallic, as well as metalloid elements.In the light of the above statements, choose the most appropriate from the options given below :

1 Statement \(I\) is false but Statement \(II\) is true
2 Statement \(I\) is true but Statement \(II\) is false
3 Both Statement \(I\) and Statement \(II\) are true
4 Both Statement \(I\) and Statement \(II\) are false
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