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JEE Advanced > Classification of Elements and Periodicity in Properties

Explore popular questions from Classification of Elements and Periodicity in Properties for JEE Advanced. This collection covers Classification of Elements and Periodicity in Properties previous year JEE Advanced questions hand picked by experienced teachers.

Q 1.

Correct4

Incorrect-1

The correct order of second ionisation potential of carbon,nitrogen, oxygen and fluorine is

A

{tex} \mathrm { C } > \mathrm { N } > \mathrm { O } > \mathrm { F } {/tex}

B

{tex} \mathrm { O } > \mathrm { N } > \mathrm { F } > \mathrm { C } {/tex}

{tex} \mathrm { O } > \mathrm { F } > \mathrm { N } > \mathrm { C } {/tex}

D

{tex} \mathrm { F } > \mathrm { O } > \mathrm { N } > \mathrm { C } {/tex}

Explanation



Q 2.

Correct4

Incorrect-1

The element with the highest first ionization potential is

A

boron

B

carbon

nitrogen

D

oxygen

Explanation

Q 3.

Correct4

Incorrect-1

The first ionization potential in electron volts of nitrogen and oxygen atoms are respectively given by

{tex} 14.6,13.6 {/tex}

B

{tex} 13.6,14.6 {/tex}

C

{tex} 13.6,13.6 {/tex}

D

{tex} 14.6,14.6 {/tex}

Explanation

Q 4.

Correct4

Incorrect-1

Atomic radii of fluorine and neon in Angstorm units are respectively given by

{tex} 0.72,1.60 {/tex}

B

{tex} 1.60,1.60 {/tex}

C

{tex} 0.72,0.72 {/tex}

D

None of these values

Explanation


Q 5.

Correct4

Incorrect-1

The electronegativity of the following elements increases in the order

A

{tex} \mathrm { C } , \mathrm { N } , \mathrm { Si } , \mathrm { P } {/tex}

B

{tex} \mathrm { N } , \mathrm { Si } , \mathrm { C } , \mathrm { P } {/tex}

{tex} \mathrm { Si } , \mathrm { P } , \mathrm { C } , \mathrm { N } {/tex}

D

{tex} \mathrm { P } , \mathrm { Si } , \mathrm { N } , \mathrm { C } {/tex}

Explanation

Q 6.

Correct4

Incorrect-1

The first ionization potential of {tex}\mathrm{Na, Mg, Al}{/tex} and {tex}\mathrm{Si}{/tex} are in the order

{tex} \mathrm { Na } < \mathrm { Mg } > \mathrm { Al } < \mathrm { Si } {/tex}

B

{tex} \mathrm { Na } > \mathrm { Mg } > \mathrm { Al } > \mathrm { Si } {/tex}

C

{tex} \mathrm { Na } < \mathrm { Mg } < \mathrm { Al } < \mathrm { Si } {/tex}

D

{tex} \mathrm { Na } > \mathrm { Mg } > \mathrm { Al } < \mathrm { Si } {/tex}

Explanation

Q 7.

Correct4

Incorrect-1

Which one of the following is the strongest base?

A

{tex} \mathrm { AsH } _ { 3 } {/tex}

{tex} \mathrm { NH } _ { 3 } {/tex}

C

{tex} \mathrm { PH } _ { 3 } {/tex}

D

{tex} \mathrm { SbH } _ { 3 } {/tex}

Explanation

Q 8.

Correct4

Incorrect-1

Which one of the following is the smallest in size?

A

{tex} \mathrm { N } ^ { 3 -} {/tex}

B

{tex} \mathrm{O ^ { 2- } }{/tex}

C

{tex} \mathrm { F } ^ { - } {/tex}

{tex} \mathrm { Na } ^ { + } {/tex}

Explanation

Q 9.

Correct4

Incorrect-1

Amongst the following elements (whose electronic configurations are given below), the one having the highest ionization energy is:

A

{tex} [ \mathrm {{ Ne } ] 3 s ^ { 2 } 3 p ^ { 1 }} {/tex}

{tex} [ \mathrm {{ Ne } ] 3 s ^ { 2 } 3 p ^ { 3 }} {/tex}

C

{tex} [ \mathrm {{ Ne } ] 3 s ^ { 2 } 3 p ^ { 2 }} {/tex}

D

{tex} [ \mathrm {{ Ne } ] 3 d ^ { 10 } 4 s ^ { 2 } 4 p ^ { 3 }} {/tex}

Explanation

Q 10.

Correct4

Incorrect-1

The statement that is not correct for the periodic classification of element is

A

The properties of elements are the periodic functions of their atomic numbers

B

Non-metallic elements are lesser in number than metallic elements

C

The first ionisation energies of elements along a period do not vary in a regular manner with increase in atomic number

For transition elements the {tex} d {/tex}-subshells are filled with electrons monotonically with increase in atomic number.

Explanation

Q 11.

Correct4

Incorrect-1

Which has most stable {tex} + 2 {/tex} oxidation state:

A

{tex} \mathrm { Sn } {/tex}

{tex} \mathrm { Pb } {/tex}

C

{tex} \mathrm { Fe } {/tex}

D

{tex} \mathrm { Ag } {/tex}

Explanation


Q 12.

Correct4

Incorrect-1

Which of the following has the maximum number of unpaired
electrons?

A

{tex} \mathrm { Mg } ^ { 2 + } {/tex}

B

{tex} \mathrm { Ti } ^ { 3 + } {/tex}

C

{tex} \mathrm { V } ^ { 3 + } {/tex}

{tex} \mathrm { Fe } ^ { 2 + } {/tex}

Explanation

Q 13.

Correct4

Incorrect-1

The correct order of radii is

A

{tex} \mathrm { N } < \mathrm { Be } < \mathrm { B } {/tex}

{tex} \mathrm { F } ^ { - } < \mathrm { O } ^ { 2 - } < \mathrm { N } ^ { 3 - } {/tex}

C

{tex} \mathrm { Na } < \mathrm { Li } < \mathrm { K } {/tex}

D

{tex} \mathrm { Fe } ^ { 3 + } < \mathrm { Fe } ^ { 2 + } < \mathrm { Fe } ^ { 4 + } {/tex}

Explanation

Q 14.

Correct4

Incorrect-1

The correct order of acidic strength is

{tex} \mathrm { Cl } _ { 2 } \mathrm { O } _ { 7 } > \mathrm { SO } _ { 2 } > \mathrm { P } _ { 4 } \mathrm { O } _ { 10 } {/tex}

B

{tex} \mathrm { CO } _ { 2 } > \mathrm { N } _ { 2 } \mathrm { O } _ { 5 } > \mathrm { SO } _ { 3 } {/tex}

C

{tex} \mathrm { Na } _ { 2 } \mathrm { O } > \mathrm { MgO } > \mathrm { Al } _ { 2 } \mathrm { O } _ { 3 } {/tex}

D

{tex} \mathrm { K } _ { 2 } \mathrm { O } > \mathrm { CaO } > \mathrm { MgO } {/tex}

Explanation

Q 15.

Correct4

Incorrect-1

Amongst {tex}\mathrm{H_2O}{/tex}, {tex}\mathrm{H_2S}{/tex}, {tex}\mathrm{H_2Se}{/tex}, and {tex}\mathrm{H_2}{/tex}{tex}\mathrm{Te}{/tex}, the one with the highest boiling point is

{tex} \mathrm { H } _ { 2 } \mathrm { O } {/tex} because of hydrogen bonding

B

{tex} \mathrm { H } _ { 2 }\mathrm {Te} {/tex} because of higher molecular weight

C

{tex} \mathrm { H } _ { 2 } \mathrm { S } {/tex} because of hydrogen bonding

D

{tex} \mathrm {{ H } _ { 2 } Se}{/tex} because of lower molecular weight

Explanation

Q 16.

Correct4

Incorrect-1

Identify the correct order of acidic strengths of {tex} \mathrm { CO } _ { 2 } , \mathrm { CuO } {/tex},
{tex} \mathrm { CaO } , \mathrm { H } _ { 2 } \mathrm { O } {/tex}

{tex} \mathrm { CaO } < \mathrm { CuO } <\mathrm { H } _ { 2 } \mathrm { O } < \mathrm { CO } _ { 2 } {/tex}

B

{tex} \mathrm { H } _ { 2 } \mathrm { O } < \mathrm { CuO } < \mathrm { CaO } < \mathrm { CO } _ { 2 } {/tex}

C

{tex} \mathrm { CaO } < \mathrm { H } _ { 2 } \mathrm { O } < \mathrm { CuO } < \mathrm { CO } _ { 2 } {/tex}

D

{tex} \mathrm { H } _ { 2 } \mathrm { O } < \mathrm { CO } _ { 2 } < \mathrm { CaO } < \mathrm { CuO } {/tex}

Explanation

Q 17.

Correct4

Incorrect-1

Atomic radii of fluorine and neon in Angstrom units are respectively given by

{tex} 0.72 ,1.60 {/tex}

B

{tex} 1.60,1.60 {/tex}

C

{tex} 0.72,0.72 {/tex}

D

none of these values

Explanation

Q 18.

Correct4

Incorrect-1

Which one of the following is the smallest in size?

A

{tex} \mathrm { N } ^ { 3^- } {/tex}

B

{tex} \mathrm { O } ^ { 2^- } {/tex}

C

{tex} \mathrm F^- {/tex}

{tex} \mathrm { Na } ^ { + } {/tex}

Explanation

Q 19.

Correct4

Incorrect-1

The incorrect statement among the following is

A

the first ionization potential of Al is less than the first ionization potential of Mg

the second ionization potential of Mg is greater than the second ionization potential of Na

C

the first ionization potential of Na is less than the first ionization potential of Mg

D

the third ionization potential of Mg is greater than the third ionization potential of Al

Explanation

Q 20.

Correct4

Incorrect-1

Identify the least stable ion amongst the following:

A

{tex} \mathrm{L i}^- {/tex}

{tex} \mathrm { Be^- } {/tex}

C

{tex} \mathrm B^- {/tex}

D

{tex} \mathrm { C^- } {/tex}

Explanation