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CHXI10:THE S-BLOCK ELEMENTS

315892 The property of hydrogen which distinguishes it from other alkali metal is

1 Its electropositive character

2 Its affinity for non-metals

3 Its reducing character

4 Its non-metallic character

CHXI10:THE S-BLOCK ELEMENTS

315893 In aqueous solution, the largest ion is

1

{Na}^{+} (

aq.

)

2

C s^{+} (a q .)

3

R b^{+} (a q .)

4

{Li}^{+} (

aq.)

CHXI10:THE S-BLOCK ELEMENTS

315894 Among the alkali metals cesium is the most reactive because

1 Its incomplete shell is nearest to the nucleus

2 It has a single electron in the valence shell

3 It is the heaviest alkali metal

4 The outermost electron is more loosely bound than the outermost electron of the other alkali metals.

KCET - 2006

CHXI10:THE S-BLOCK ELEMENTS

315895 Alkali metals in each period have

1 smallest size

2 lowest ionization enthalpy

3 highest electron gain enthalpy

4 highest electronegativity.

CHXI10:THE S-BLOCK ELEMENTS

315896 Among alkali metal salts, the lithium salts are the poorest conductors of electricity in aqueous solution because of

1 easy diffusion of

{Li}^{+}

ions

2 lower ability of

{Li}^{+}

ions to polarize water molecules

3 lowest charge to radius ratio

4 higher degree of hydration of

{Li}^{+}

ions.

Explanation:

Higher degree of hydration of ${Li}^{+}$ ions.

CHXI10:THE S-BLOCK ELEMENTS

315892 The property of hydrogen which distinguishes it from other alkali metal is

1 Its electropositive character

2 Its affinity for non-metals

3 Its reducing character

4 Its non-metallic character

CHXI10:THE S-BLOCK ELEMENTS

315893 In aqueous solution, the largest ion is

1

{Na}^{+} (

aq.

)

2

C s^{+} (a q .)

3

R b^{+} (a q .)

4

{Li}^{+} (

aq.)

CHXI10:THE S-BLOCK ELEMENTS

315894 Among the alkali metals cesium is the most reactive because

1 Its incomplete shell is nearest to the nucleus

2 It has a single electron in the valence shell

3 It is the heaviest alkali metal

4 The outermost electron is more loosely bound than the outermost electron of the other alkali metals.

KCET - 2006

CHXI10:THE S-BLOCK ELEMENTS

315895 Alkali metals in each period have

1 smallest size

2 lowest ionization enthalpy

3 highest electron gain enthalpy

4 highest electronegativity.

CHXI10:THE S-BLOCK ELEMENTS

315896 Among alkali metal salts, the lithium salts are the poorest conductors of electricity in aqueous solution because of

1 easy diffusion of

{Li}^{+}

ions

2 lower ability of

{Li}^{+}

ions to polarize water molecules

3 lowest charge to radius ratio

4 higher degree of hydration of

{Li}^{+}

ions.

Explanation:

Higher degree of hydration of ${Li}^{+}$ ions.

CHXI10:THE S-BLOCK ELEMENTS

315892 The property of hydrogen which distinguishes it from other alkali metal is

1 Its electropositive character

2 Its affinity for non-metals

3 Its reducing character

4 Its non-metallic character

CHXI10:THE S-BLOCK ELEMENTS

315893 In aqueous solution, the largest ion is

1

{Na}^{+} (

aq.

)

2

C s^{+} (a q .)

3

R b^{+} (a q .)

4

{Li}^{+} (

aq.)

CHXI10:THE S-BLOCK ELEMENTS

315894 Among the alkali metals cesium is the most reactive because

1 Its incomplete shell is nearest to the nucleus

2 It has a single electron in the valence shell

3 It is the heaviest alkali metal

4 The outermost electron is more loosely bound than the outermost electron of the other alkali metals.

KCET - 2006

CHXI10:THE S-BLOCK ELEMENTS

315895 Alkali metals in each period have

1 smallest size

2 lowest ionization enthalpy

3 highest electron gain enthalpy

4 highest electronegativity.

CHXI10:THE S-BLOCK ELEMENTS

315896 Among alkali metal salts, the lithium salts are the poorest conductors of electricity in aqueous solution because of

1 easy diffusion of

{Li}^{+}

ions

2 lower ability of

{Li}^{+}

ions to polarize water molecules

3 lowest charge to radius ratio

4 higher degree of hydration of

{Li}^{+}

ions.

Explanation:

Higher degree of hydration of ${Li}^{+}$ ions.

CHXI10:THE S-BLOCK ELEMENTS

315892 The property of hydrogen which distinguishes it from other alkali metal is

1 Its electropositive character

2 Its affinity for non-metals

3 Its reducing character

4 Its non-metallic character

CHXI10:THE S-BLOCK ELEMENTS

315893 In aqueous solution, the largest ion is

1

{Na}^{+} (

aq.

)

2

C s^{+} (a q .)

3

R b^{+} (a q .)

4

{Li}^{+} (

aq.)

CHXI10:THE S-BLOCK ELEMENTS

315894 Among the alkali metals cesium is the most reactive because

1 Its incomplete shell is nearest to the nucleus

2 It has a single electron in the valence shell

3 It is the heaviest alkali metal

4 The outermost electron is more loosely bound than the outermost electron of the other alkali metals.

KCET - 2006

CHXI10:THE S-BLOCK ELEMENTS

315895 Alkali metals in each period have

1 smallest size

2 lowest ionization enthalpy

3 highest electron gain enthalpy

4 highest electronegativity.

CHXI10:THE S-BLOCK ELEMENTS

315896 Among alkali metal salts, the lithium salts are the poorest conductors of electricity in aqueous solution because of

1 easy diffusion of

{Li}^{+}

ions

2 lower ability of

{Li}^{+}

ions to polarize water molecules

3 lowest charge to radius ratio

4 higher degree of hydration of

{Li}^{+}

ions.

Explanation:

Higher degree of hydration of ${Li}^{+}$ ions.

CHXI10:THE S-BLOCK ELEMENTS

315892 The property of hydrogen which distinguishes it from other alkali metal is

1 Its electropositive character

2 Its affinity for non-metals

3 Its reducing character

4 Its non-metallic character

CHXI10:THE S-BLOCK ELEMENTS

315893 In aqueous solution, the largest ion is

1

{Na}^{+} (

aq.

)

2

C s^{+} (a q .)

3

R b^{+} (a q .)

4

{Li}^{+} (

aq.)

CHXI10:THE S-BLOCK ELEMENTS

315894 Among the alkali metals cesium is the most reactive because

1 Its incomplete shell is nearest to the nucleus

2 It has a single electron in the valence shell

3 It is the heaviest alkali metal

4 The outermost electron is more loosely bound than the outermost electron of the other alkali metals.

KCET - 2006

CHXI10:THE S-BLOCK ELEMENTS

315895 Alkali metals in each period have

1 smallest size

2 lowest ionization enthalpy

3 highest electron gain enthalpy

4 highest electronegativity.

CHXI10:THE S-BLOCK ELEMENTS

315896 Among alkali metal salts, the lithium salts are the poorest conductors of electricity in aqueous solution because of

1 easy diffusion of

{Li}^{+}

ions

2 lower ability of

{Li}^{+}

ions to polarize water molecules

3 lowest charge to radius ratio

4 higher degree of hydration of

{Li}^{+}

ions.

Explanation:

Higher degree of hydration of ${Li}^{+}$ ions.