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CHEMISTRY(KCET)

285240 The third ionisation enthalpy is highest in

1 alkali metals

2 alkaline earth metals

3 chalcogens

4 pnictogens.

Karnataka CET 2021

CHEMISTRY(KCET)

285241 The first ionization enthalpy of the following elements are in the order:

1 Q

<

N

<

Si

<

P

2 P

<

Si

<

N

<

C

3 P

^{'} <

Si

<

C

<

N

4

Si < P < C < N

Karnataka CET 2019

CHEMISTRY(KCET)

285242 Which of the following is the correct order of radius?

1

H^{-} > H^{-} > H^{+}

2

{Na}^{+} > F^{-} > O^{2 -}

3

F^{-} > O^{2 -} > {Na}^{+}

4

{Al}^{3 +} > {Mg}^{2 +} > {Mn}^{3 -}

Explanation:

(a) Anion have larger radius than cations. It follows the order as atomic radius
$=$ Anionic species $>$ Neutral species
$>$ Cationic species

Karnataka CET 2018

CHEMISTRY(KCET)

285243 Which one of the following metallic oxides exhibit amphoteric nature?

1 BaO

2

{Al}_{2} O_{3}

3

{Na}_{2} O

4 CaO

Karnataka CET 2017

CHEMISTRY(KCET)

285240 The third ionisation enthalpy is highest in

1 alkali metals

2 alkaline earth metals

3 chalcogens

4 pnictogens.

Karnataka CET 2021

CHEMISTRY(KCET)

285241 The first ionization enthalpy of the following elements are in the order:

1 Q

<

N

<

Si

<

P

2 P

<

Si

<

N

<

C

3 P

^{'} <

Si

<

C

<

N

4

Si < P < C < N

Karnataka CET 2019

CHEMISTRY(KCET)

285242 Which of the following is the correct order of radius?

1

H^{-} > H^{-} > H^{+}

2

{Na}^{+} > F^{-} > O^{2 -}

3

F^{-} > O^{2 -} > {Na}^{+}

4

{Al}^{3 +} > {Mg}^{2 +} > {Mn}^{3 -}

Explanation:

(a) Anion have larger radius than cations. It follows the order as atomic radius
$=$ Anionic species $>$ Neutral species
$>$ Cationic species

Karnataka CET 2018

CHEMISTRY(KCET)

285243 Which one of the following metallic oxides exhibit amphoteric nature?

1 BaO

2

{Al}_{2} O_{3}

3

{Na}_{2} O

4 CaO

Karnataka CET 2017

CHEMISTRY(KCET)

285240 The third ionisation enthalpy is highest in

1 alkali metals

2 alkaline earth metals

3 chalcogens

4 pnictogens.

Karnataka CET 2021

CHEMISTRY(KCET)

285241 The first ionization enthalpy of the following elements are in the order:

1 Q

<

N

<

Si

<

P

2 P

<

Si

<

N

<

C

3 P

^{'} <

Si

<

C

<

N

4

Si < P < C < N

Karnataka CET 2019

CHEMISTRY(KCET)

285242 Which of the following is the correct order of radius?

1

H^{-} > H^{-} > H^{+}

2

{Na}^{+} > F^{-} > O^{2 -}

3

F^{-} > O^{2 -} > {Na}^{+}

4

{Al}^{3 +} > {Mg}^{2 +} > {Mn}^{3 -}

Explanation:

(a) Anion have larger radius than cations. It follows the order as atomic radius
$=$ Anionic species $>$ Neutral species
$>$ Cationic species

Karnataka CET 2018

CHEMISTRY(KCET)

285243 Which one of the following metallic oxides exhibit amphoteric nature?

1 BaO

2

{Al}_{2} O_{3}

3

{Na}_{2} O

4 CaO

Karnataka CET 2017

CHEMISTRY(KCET)

285240 The third ionisation enthalpy is highest in

1 alkali metals

2 alkaline earth metals

3 chalcogens

4 pnictogens.

Karnataka CET 2021

CHEMISTRY(KCET)

285241 The first ionization enthalpy of the following elements are in the order:

1 Q

<

N

<

Si

<

P

2 P

<

Si

<

N

<

C

3 P

^{'} <

Si

<

C

<

N

4

Si < P < C < N

Karnataka CET 2019

CHEMISTRY(KCET)

285242 Which of the following is the correct order of radius?

1

H^{-} > H^{-} > H^{+}

2

{Na}^{+} > F^{-} > O^{2 -}

3

F^{-} > O^{2 -} > {Na}^{+}

4

{Al}^{3 +} > {Mg}^{2 +} > {Mn}^{3 -}

Explanation:

(a) Anion have larger radius than cations. It follows the order as atomic radius
$=$ Anionic species $>$ Neutral species
$>$ Cationic species

Karnataka CET 2018

CHEMISTRY(KCET)

285243 Which one of the following metallic oxides exhibit amphoteric nature?

1 BaO

2

{Al}_{2} O_{3}

3

{Na}_{2} O

4 CaO

Karnataka CET 2017