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CHXI11:THE P-BLOCK ELEMENTS

317072 Duralumin is an alloy of

1

Al

and

Mg

2

Al, Mg

and

Ni

3

Al, Mg, Mn

and

Cu

4

Al

and

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

Al 94 %, Mg 6 %

2

Cu56% , Zn 24% , Ni 20%

3

Cu 95 %, Al 5 %

4

Al 95 %, Cu 4 %, Mn 0.5 %, Mg 0.5 %

Explanation:

$Duralumin$ is an alloy of $Al (95 %)$ , $Cu (4 %), Mn (0.5 %)$ and $Mg (0.5 %)$ .
$Magnalium$ is an alloy of $Al (94 %)$ and $Mg (6 %)$ .
$German silver$ is an alloy of $Cu (56 %)$ , $Zn (24 %)$ and $Ni (20 %)$ .
$Aluminium bronze$ is an alloy of $Cu (95 %)$ and $Al (5 %)$ .

AIIMS - 2010

CHXI11:THE P-BLOCK ELEMENTS

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

1

{FeSO}_{4}

2

{Al}_{2} {({SO}_{4})}_{3}

3

{Cu}_{2} {SO}_{4}

4

{MgSO}_{4} \cdot 7 H_{2} O

CHXI11:THE P-BLOCK ELEMENTS

317076 Ammonal used in bomb is a mixture of

1

Al + {KNO}_{3}

2

A 1 + {Al}_{2} O_{3} + B_{2} O_{3}

3

Al + Al {({NO}_{3})}_{3}

4

{Al}_{2} O_{3} + C

Explanation:

Mixture of $Al$ powder and $Al {({NO}_{3})}_{3}$ is known as ammonal. It is used in bomb formation material.

CHXI11:THE P-BLOCK ELEMENTS

317072 Duralumin is an alloy of

1

Al

and

Mg

2

Al, Mg

and

Ni

3

Al, Mg, Mn

and

Cu

4

Al

and

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

Al 94 %, Mg 6 %

2

Cu56% , Zn 24% , Ni 20%

3

Cu 95 %, Al 5 %

4

Al 95 %, Cu 4 %, Mn 0.5 %, Mg 0.5 %

Explanation:

$Duralumin$ is an alloy of $Al (95 %)$ , $Cu (4 %), Mn (0.5 %)$ and $Mg (0.5 %)$ .
$Magnalium$ is an alloy of $Al (94 %)$ and $Mg (6 %)$ .
$German silver$ is an alloy of $Cu (56 %)$ , $Zn (24 %)$ and $Ni (20 %)$ .
$Aluminium bronze$ is an alloy of $Cu (95 %)$ and $Al (5 %)$ .

AIIMS - 2010

CHXI11:THE P-BLOCK ELEMENTS

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

1

{FeSO}_{4}

2

{Al}_{2} {({SO}_{4})}_{3}

3

{Cu}_{2} {SO}_{4}

4

{MgSO}_{4} \cdot 7 H_{2} O

CHXI11:THE P-BLOCK ELEMENTS

317076 Ammonal used in bomb is a mixture of

1

Al + {KNO}_{3}

2

A 1 + {Al}_{2} O_{3} + B_{2} O_{3}

3

Al + Al {({NO}_{3})}_{3}

4

{Al}_{2} O_{3} + C

Explanation:

Mixture of $Al$ powder and $Al {({NO}_{3})}_{3}$ is known as ammonal. It is used in bomb formation material.

CHXI11:THE P-BLOCK ELEMENTS

317072 Duralumin is an alloy of

1

Al

and

Mg

2

Al, Mg

and

Ni

3

Al, Mg, Mn

and

Cu

4

Al

and

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

Al 94 %, Mg 6 %

2

Cu56% , Zn 24% , Ni 20%

3

Cu 95 %, Al 5 %

4

Al 95 %, Cu 4 %, Mn 0.5 %, Mg 0.5 %

Explanation:

$Duralumin$ is an alloy of $Al (95 %)$ , $Cu (4 %), Mn (0.5 %)$ and $Mg (0.5 %)$ .
$Magnalium$ is an alloy of $Al (94 %)$ and $Mg (6 %)$ .
$German silver$ is an alloy of $Cu (56 %)$ , $Zn (24 %)$ and $Ni (20 %)$ .
$Aluminium bronze$ is an alloy of $Cu (95 %)$ and $Al (5 %)$ .

AIIMS - 2010

CHXI11:THE P-BLOCK ELEMENTS

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

1

{FeSO}_{4}

2

{Al}_{2} {({SO}_{4})}_{3}

3

{Cu}_{2} {SO}_{4}

4

{MgSO}_{4} \cdot 7 H_{2} O

CHXI11:THE P-BLOCK ELEMENTS

317076 Ammonal used in bomb is a mixture of

1

Al + {KNO}_{3}

2

A 1 + {Al}_{2} O_{3} + B_{2} O_{3}

3

Al + Al {({NO}_{3})}_{3}

4

{Al}_{2} O_{3} + C

Explanation:

Mixture of $Al$ powder and $Al {({NO}_{3})}_{3}$ is known as ammonal. It is used in bomb formation material.

CHXI11:THE P-BLOCK ELEMENTS

317072 Duralumin is an alloy of

1

Al

and

Mg

2

Al, Mg

and

Ni

3

Al, Mg, Mn

and

Cu

4

Al

and

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

Al 94 %, Mg 6 %

2

Cu56% , Zn 24% , Ni 20%

3

Cu 95 %, Al 5 %

4

Al 95 %, Cu 4 %, Mn 0.5 %, Mg 0.5 %

Explanation:

$Duralumin$ is an alloy of $Al (95 %)$ , $Cu (4 %), Mn (0.5 %)$ and $Mg (0.5 %)$ .
$Magnalium$ is an alloy of $Al (94 %)$ and $Mg (6 %)$ .
$German silver$ is an alloy of $Cu (56 %)$ , $Zn (24 %)$ and $Ni (20 %)$ .
$Aluminium bronze$ is an alloy of $Cu (95 %)$ and $Al (5 %)$ .

AIIMS - 2010

CHXI11:THE P-BLOCK ELEMENTS

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

1

{FeSO}_{4}

2

{Al}_{2} {({SO}_{4})}_{3}

3

{Cu}_{2} {SO}_{4}

4

{MgSO}_{4} \cdot 7 H_{2} O

CHXI11:THE P-BLOCK ELEMENTS

317076 Ammonal used in bomb is a mixture of

1

Al + {KNO}_{3}

2

A 1 + {Al}_{2} O_{3} + B_{2} O_{3}

3

Al + Al {({NO}_{3})}_{3}

4

{Al}_{2} O_{3} + C

Explanation:

Mixture of $Al$ powder and $Al {({NO}_{3})}_{3}$ is known as ammonal. It is used in bomb formation material.

CHXI11:THE P-BLOCK ELEMENTS

317072 Duralumin is an alloy of

1

Al

and

Mg

2

Al, Mg

and

Ni

3

Al, Mg, Mn

and

Cu

4

Al

and

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

Al 94 %, Mg 6 %

2

Cu56% , Zn 24% , Ni 20%

3

Cu 95 %, Al 5 %

4

Al 95 %, Cu 4 %, Mn 0.5 %, Mg 0.5 %

Explanation:

$Duralumin$ is an alloy of $Al (95 %)$ , $Cu (4 %), Mn (0.5 %)$ and $Mg (0.5 %)$ .
$Magnalium$ is an alloy of $Al (94 %)$ and $Mg (6 %)$ .
$German silver$ is an alloy of $Cu (56 %)$ , $Zn (24 %)$ and $Ni (20 %)$ .
$Aluminium bronze$ is an alloy of $Cu (95 %)$ and $Al (5 %)$ .

AIIMS - 2010

CHXI11:THE P-BLOCK ELEMENTS

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

1

{FeSO}_{4}

2

{Al}_{2} {({SO}_{4})}_{3}

3

{Cu}_{2} {SO}_{4}

4

{MgSO}_{4} \cdot 7 H_{2} O

CHXI11:THE P-BLOCK ELEMENTS

317076 Ammonal used in bomb is a mixture of

1

Al + {KNO}_{3}

2

A 1 + {Al}_{2} O_{3} + B_{2} O_{3}

3

Al + Al {({NO}_{3})}_{3}

4

{Al}_{2} O_{3} + C

Explanation:

Mixture of $Al$ powder and $Al {({NO}_{3})}_{3}$ is known as ammonal. It is used in bomb formation material.

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