Tag: p- block elements-ii

Questions Related to p- block elements-ii

Match the column I with column II and mark the appropriate choice.

Column I Column II
(A) $H _{2}SO _{4}$ (i) Highest electron gain enthalpy
(B) $CCl _{3}NO _{2}$ (ii)Chalcogen
(C) $Cl _{2}$ (iii) Tear gas
(D) Sulphur (iv) Storage batteries
chemistry p- block elements-ii group 17 elements - general properties group 17 elements group 17 elements - properties

  1. (A) $\rightarrow$ (iv), (B) $\rightarrow$ (iii), (C) $\rightarrow$ (i), (D) $\rightarrow$ (ii)

  2. (A) $\rightarrow$ (iii), (B) $\rightarrow$ (iv), (C) $\rightarrow$ (i), (D) $\rightarrow$ (ii)

  3. (A) $\rightarrow$ (iv), (B) $\rightarrow$ (i), (C) $\rightarrow$ (ii), (D) $\rightarrow$ (iii)

  4. (A) $\rightarrow$ (ii), (B) $\rightarrow$ (i), (C) $\rightarrow$ (iii), (D) $\rightarrow$ (iv)

Show answer
Correct Option: A
Explanation:

$H _2SO _4$ is used in storage batteries.

$CCl _3NO _2$ is chloropicrrin which is known as tear gas.
$Cl$ is the element of highest electron gain enthalpy.
Sulfur is the element belongs to 16th group which are also called as Chalcogens.
So the given data matches with option A.
Hence option A is correct.

Which one of these group off elements is also called the halogen family?

chemistry p- block elements-ii group 17 elements - general properties group 17 elements group 17 elements - properties

  1. Group 16

  2. Group 18

  3. Group 10

  4. Group 17

Show answer
Correct Option: D
Explanation:

Group 17 is also called halogen family.

Less ionic compound among the following

chemistry p- block elements-ii group 17 elements - general properties group 17 elements group 17 elements - properties

  1. NaF

  2. KCl

  3. KF

  4. NaCl

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Correct Option: A

$  { I } _{ 2 }C{ l } _{  6}$ i s formed by the following reaction:


       $  2IC{ l } _{  3}\rightleftharpoons {I  } _{2  }C{l } _{ 6 }  $

On the basis of the structure of $  {I } _{2  }C{l } _{ 6 }  $, find the number of atoms lying in one plane.

chemistry p- block elements-ii group 17 elements - general properties group 17 elements group 17 elements - properties

  1. 4

  2. 6

  3. 8

  4. 10

Show answer
Correct Option: B

In NaOX , X cannot be

chemistry p- block elements-ii group 17 elements - general properties group 17 elements group 17 elements - properties

  1. ${ F } _{ 2 }$

  2. ${ Cl } _{ 2 }$

  3. ${ Br } _{ 2 }$

  4. $I _{ 2 }$

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Correct Option: D

The strongest oxidising agent is :

chemistry p- block elements-ii group 17 elements - general properties group 17 elements group 17 elements - properties

  1. ${ Cl }^{ -1 }$

  2. ${ F }^{ -1 }$

  3. $O^{ -2 }$

  4. $N^{ -3 }$

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Correct Option: B

The table shows some information about elements in Group VII of the Periodic Table. 

Name State at room temperature Colour
Chlorine Gas yellow-green
Bromine liquid brown
iodine ? ?
Astaine solid black

Which information about iodine completes the table?

chemistry p- block elements-ii group 17 elements - general properties group 17 elements group 17 elements - properties

  1. State - liquid, colour - black

  2. State - liquid, colour - green

  3. State - solid, colour - grey

  4. State - solid, colour - yellow

Show answer
Correct Option: D
Explanation:
$\text{D) State-solid,Colour-yellow}$
$\text{Iodine is solid at room temperature and appears yellow in low concentrat}$

Affinity for hydrogen is maximum for

chemistry p- block elements-ii group 17 elements - general properties group 17 elements group 17 elements - properties

  1. $\mathrm{F} _{2}$

  2. $ \mathrm{Cl} _{2}$

  3. $\mathrm{B}\mathrm{r} _{2}$

  4. $I _{2}$

Show answer
Correct Option: A
Explanation:

Fluorine $(F _2)$ is a halogen , which is a non-metal and has highest electronegativity, so it has maximum affinity for hydrogen. 

Which requires the highest energy for excitation?

chemistry p- block elements-ii group 17 elements - general properties group 17 elements group 17 elements - properties

  1. F

  2. Cl

  3. Br

  4. I

Show answer
Correct Option: A
Explanation:

Fluorine has a small size thus it has a high nuclear charge and its electrons are strongly attracted towards the nucleus. Thus it requires high energy for excitation. Among halogen atoms, fluorine requires the highest energy for excitation.

Halogens means:

chemistry p- block elements-ii group 17 elements - general properties group 17 elements group 17 elements - properties

  1. ore forming elements

  2. sea salt products

  3. inert gases

  4. rare gases

Show answer
Correct Option: B
Explanation:

Sea salt $\to$ like $Mgcl _{2},\ MgBr _{2}$ have halogens.  $\therefore$  Halogens are sea salt products