Uses of Boron, Aluminium, and their Compounds
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CHXI11:THE P-BLOCK ELEMENTS

317072 Duralumin is an alloy of

1 \(\mathrm{Al}\) and \(\mathrm{Mg}\)
2 \(\mathrm{Al}, \mathrm{Mg}\) and \(\mathrm{Ni}\)
3 \(\mathrm{Al}, \mathrm{Mg}, \mathrm{Mn}\) and \(\mathrm{Cu}\)
4 \(\mathrm{Al}\) and \(\mathrm{Ni}\)
CHXI11:THE P-BLOCK ELEMENTS

317073 Borax is used as a cleansing agent because on dissolving in water, it gives

1 alkaline solution
2 acidic solution
3 bleaching solution
4 neutral solution
CHXI11:THE P-BLOCK ELEMENTS

317074 The composition of duralumin is

1 \(\mathrm{Al} 94 \%, \mathrm{Mg} 6 \%\)
2 \({\text{Cu56% ,}}\,\,{\text{Zn 24% ,}}\,\,\,{\text{Ni 20% }}\)
3 \(\mathrm{Cu} 95 \%, \mathrm{Al} \mathrm{5 \%}\)
4 \(\mathrm{Al} 95 \%, \mathrm{Cu} 4 \%, \mathrm{Mn} 0.5 \%, \mathrm{Mg} 0.5 \%\)
AIIMS - 2010
CHXI11:THE P-BLOCK ELEMENTS

317075 Which of the following compounds can make clothes fire proof?

1 \(\mathrm{FeSO}_{4}\)
2 \(\mathrm{Al}_{2}\left(\mathrm{SO}_{4}\right)_{3}\)
3 \(\mathrm{Cu}_{2} \mathrm{SO}_{4}\)
4 \(\mathrm{MgSO}_{4} \cdot 7 \mathrm{H}_{2} \mathrm{O}\)
CHXI11:THE P-BLOCK ELEMENTS

317076 Ammonal used in bomb is a mixture of

1 \(\mathrm{Al}+\mathrm{KNO}_{3}\)
2 \(\mathrm{A} 1+\mathrm{Al}_{2} \mathrm{O}_{3}+\mathrm{B}_{2} \mathrm{O}_{3}\)
3 \(\mathrm{Al}+\mathrm{Al}\left(\mathrm{NO}_{3}\right)_{3}\)
4 \(\mathrm{Al}_{2} \mathrm{O}_{3}+\mathrm{C}\)
NEET DIGITAL LIBRARY
CHXI11:THE P-BLOCK ELEMENTS

317072 Duralumin is an alloy of

1 \(\mathrm{Al}\) and \(\mathrm{Mg}\)
2 \(\mathrm{Al}, \mathrm{Mg}\) and \(\mathrm{Ni}\)
3 \(\mathrm{Al}, \mathrm{Mg}, \mathrm{Mn}\) and \(\mathrm{Cu}\)
4 \(\mathrm{Al}\) and \(\mathrm{Ni}\)
CHXI11:THE P-BLOCK ELEMENTS

317073 Borax is used as a cleansing agent because on dissolving in water, it gives

1 alkaline solution
2 acidic solution
3 bleaching solution
4 neutral solution
CHXI11:THE P-BLOCK ELEMENTS

317074 The composition of duralumin is

1 \(\mathrm{Al} 94 \%, \mathrm{Mg} 6 \%\)
2 \({\text{Cu56% ,}}\,\,{\text{Zn 24% ,}}\,\,\,{\text{Ni 20% }}\)
3 \(\mathrm{Cu} 95 \%, \mathrm{Al} \mathrm{5 \%}\)
4 \(\mathrm{Al} 95 \%, \mathrm{Cu} 4 \%, \mathrm{Mn} 0.5 \%, \mathrm{Mg} 0.5 \%\)
AIIMS - 2010
CHXI11:THE P-BLOCK ELEMENTS

317075 Which of the following compounds can make clothes fire proof?

1 \(\mathrm{FeSO}_{4}\)
2 \(\mathrm{Al}_{2}\left(\mathrm{SO}_{4}\right)_{3}\)
3 \(\mathrm{Cu}_{2} \mathrm{SO}_{4}\)
4 \(\mathrm{MgSO}_{4} \cdot 7 \mathrm{H}_{2} \mathrm{O}\)
CHXI11:THE P-BLOCK ELEMENTS

317076 Ammonal used in bomb is a mixture of

1 \(\mathrm{Al}+\mathrm{KNO}_{3}\)
2 \(\mathrm{A} 1+\mathrm{Al}_{2} \mathrm{O}_{3}+\mathrm{B}_{2} \mathrm{O}_{3}\)
3 \(\mathrm{Al}+\mathrm{Al}\left(\mathrm{NO}_{3}\right)_{3}\)
4 \(\mathrm{Al}_{2} \mathrm{O}_{3}+\mathrm{C}\)
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CHXI11:THE P-BLOCK ELEMENTS

317072 Duralumin is an alloy of

1 \(\mathrm{Al}\) and \(\mathrm{Mg}\)
2 \(\mathrm{Al}, \mathrm{Mg}\) and \(\mathrm{Ni}\)
3 \(\mathrm{Al}, \mathrm{Mg}, \mathrm{Mn}\) and \(\mathrm{Cu}\)
4 \(\mathrm{Al}\) and \(\mathrm{Ni}\)
CHXI11:THE P-BLOCK ELEMENTS

317073 Borax is used as a cleansing agent because on dissolving in water, it gives

1 alkaline solution
2 acidic solution
3 bleaching solution
4 neutral solution
CHXI11:THE P-BLOCK ELEMENTS

317074 The composition of duralumin is

1 \(\mathrm{Al} 94 \%, \mathrm{Mg} 6 \%\)
2 \({\text{Cu56% ,}}\,\,{\text{Zn 24% ,}}\,\,\,{\text{Ni 20% }}\)
3 \(\mathrm{Cu} 95 \%, \mathrm{Al} \mathrm{5 \%}\)
4 \(\mathrm{Al} 95 \%, \mathrm{Cu} 4 \%, \mathrm{Mn} 0.5 \%, \mathrm{Mg} 0.5 \%\)
AIIMS - 2010
CHXI11:THE P-BLOCK ELEMENTS

317075 Which of the following compounds can make clothes fire proof?

1 \(\mathrm{FeSO}_{4}\)
2 \(\mathrm{Al}_{2}\left(\mathrm{SO}_{4}\right)_{3}\)
3 \(\mathrm{Cu}_{2} \mathrm{SO}_{4}\)
4 \(\mathrm{MgSO}_{4} \cdot 7 \mathrm{H}_{2} \mathrm{O}\)
CHXI11:THE P-BLOCK ELEMENTS

317076 Ammonal used in bomb is a mixture of

1 \(\mathrm{Al}+\mathrm{KNO}_{3}\)
2 \(\mathrm{A} 1+\mathrm{Al}_{2} \mathrm{O}_{3}+\mathrm{B}_{2} \mathrm{O}_{3}\)
3 \(\mathrm{Al}+\mathrm{Al}\left(\mathrm{NO}_{3}\right)_{3}\)
4 \(\mathrm{Al}_{2} \mathrm{O}_{3}+\mathrm{C}\)
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CHXI11:THE P-BLOCK ELEMENTS

317072 Duralumin is an alloy of

1 \(\mathrm{Al}\) and \(\mathrm{Mg}\)
2 \(\mathrm{Al}, \mathrm{Mg}\) and \(\mathrm{Ni}\)
3 \(\mathrm{Al}, \mathrm{Mg}, \mathrm{Mn}\) and \(\mathrm{Cu}\)
4 \(\mathrm{Al}\) and \(\mathrm{Ni}\)
CHXI11:THE P-BLOCK ELEMENTS

317073 Borax is used as a cleansing agent because on dissolving in water, it gives

1 alkaline solution
2 acidic solution
3 bleaching solution
4 neutral solution
CHXI11:THE P-BLOCK ELEMENTS

317074 The composition of duralumin is

1 \(\mathrm{Al} 94 \%, \mathrm{Mg} 6 \%\)
2 \({\text{Cu56% ,}}\,\,{\text{Zn 24% ,}}\,\,\,{\text{Ni 20% }}\)
3 \(\mathrm{Cu} 95 \%, \mathrm{Al} \mathrm{5 \%}\)
4 \(\mathrm{Al} 95 \%, \mathrm{Cu} 4 \%, \mathrm{Mn} 0.5 \%, \mathrm{Mg} 0.5 \%\)
AIIMS - 2010
CHXI11:THE P-BLOCK ELEMENTS

317075 Which of the following compounds can make clothes fire proof?

1 \(\mathrm{FeSO}_{4}\)
2 \(\mathrm{Al}_{2}\left(\mathrm{SO}_{4}\right)_{3}\)
3 \(\mathrm{Cu}_{2} \mathrm{SO}_{4}\)
4 \(\mathrm{MgSO}_{4} \cdot 7 \mathrm{H}_{2} \mathrm{O}\)
CHXI11:THE P-BLOCK ELEMENTS

317076 Ammonal used in bomb is a mixture of

1 \(\mathrm{Al}+\mathrm{KNO}_{3}\)
2 \(\mathrm{A} 1+\mathrm{Al}_{2} \mathrm{O}_{3}+\mathrm{B}_{2} \mathrm{O}_{3}\)
3 \(\mathrm{Al}+\mathrm{Al}\left(\mathrm{NO}_{3}\right)_{3}\)
4 \(\mathrm{Al}_{2} \mathrm{O}_{3}+\mathrm{C}\)
NEET DIGITAL LIBRARY
CHXI11:THE P-BLOCK ELEMENTS

317072 Duralumin is an alloy of

1 \(\mathrm{Al}\) and \(\mathrm{Mg}\)
2 \(\mathrm{Al}, \mathrm{Mg}\) and \(\mathrm{Ni}\)
3 \(\mathrm{Al}, \mathrm{Mg}, \mathrm{Mn}\) and \(\mathrm{Cu}\)
4 \(\mathrm{Al}\) and \(\mathrm{Ni}\)
CHXI11:THE P-BLOCK ELEMENTS

317073 Borax is used as a cleansing agent because on dissolving in water, it gives

1 alkaline solution
2 acidic solution
3 bleaching solution
4 neutral solution
CHXI11:THE P-BLOCK ELEMENTS

317074 The composition of duralumin is

1 \(\mathrm{Al} 94 \%, \mathrm{Mg} 6 \%\)
2 \({\text{Cu56% ,}}\,\,{\text{Zn 24% ,}}\,\,\,{\text{Ni 20% }}\)
3 \(\mathrm{Cu} 95 \%, \mathrm{Al} \mathrm{5 \%}\)
4 \(\mathrm{Al} 95 \%, \mathrm{Cu} 4 \%, \mathrm{Mn} 0.5 \%, \mathrm{Mg} 0.5 \%\)
AIIMS - 2010
CHXI11:THE P-BLOCK ELEMENTS

317075 Which of the following compounds can make clothes fire proof?

1 \(\mathrm{FeSO}_{4}\)
2 \(\mathrm{Al}_{2}\left(\mathrm{SO}_{4}\right)_{3}\)
3 \(\mathrm{Cu}_{2} \mathrm{SO}_{4}\)
4 \(\mathrm{MgSO}_{4} \cdot 7 \mathrm{H}_{2} \mathrm{O}\)
CHXI11:THE P-BLOCK ELEMENTS

317076 Ammonal used in bomb is a mixture of

1 \(\mathrm{Al}+\mathrm{KNO}_{3}\)
2 \(\mathrm{A} 1+\mathrm{Al}_{2} \mathrm{O}_{3}+\mathrm{B}_{2} \mathrm{O}_{3}\)
3 \(\mathrm{Al}+\mathrm{Al}\left(\mathrm{NO}_{3}\right)_{3}\)
4 \(\mathrm{Al}_{2} \mathrm{O}_{3}+\mathrm{C}\)