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For which one of the following propertie...

For which one of the following properties of halogens the sequence `F gt Cl gt Br gt I` holds good

A

Electron affinity

B

Electronegativity

C

Atomic radius

D

Boiling point

Text Solution

AI Generated Solution

The correct Answer is:
To determine the property of halogens for which the sequence `F > Cl > Br > I` holds true, we can analyze the properties of halogens one by one. ### Step 1: Understand the Halogens The halogens are a group of elements in Group 17 of the periodic table, which include fluorine (F), chlorine (Cl), bromine (Br), and iodine (I). ### Step 2: Analyze Electronegativity Electronegativity is the tendency of an atom to attract electrons in a chemical bond. In the periodic table, electronegativity generally increases from left to right across a period and decreases from top to bottom within a group. - **Fluorine (F)** is at the top of the group and has the highest electronegativity. - **Chlorine (Cl)** is below fluorine and has a lower electronegativity than fluorine but higher than bromine and iodine. - **Bromine (Br)** is below chlorine and has a lower electronegativity than chlorine. - **Iodine (I)** is at the bottom of the group and has the lowest electronegativity. Thus, the order of electronegativity is: **F > Cl > Br > I** ### Step 3: Compare Other Properties - **Boiling Point:** The boiling point of halogens increases down the group (I > Br > Cl > F). - **Atomic Size:** The atomic size increases down the group (I > Br > Cl > F). - **Electron Affinity:** The trend is not as straightforward, but generally, it decreases down the group. ### Conclusion The sequence `F > Cl > Br > I` specifically holds true for **electronegativity** among the halogens. ### Final Answer The property for which the sequence `F > Cl > Br > I` holds good is **electronegativity**. ---
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Knowledge Check

  • For which one of the following properties of halogens, the sequence Fgt Cl gt Br gt I holds good?

    A
    Atomic radius
    B
    Boiling point
    C
    Electron affinity
    D
    Electronegativity

  • Which of the given periodic properties is/are following order : F gt O gt N

    A
    Electron affinity
    B
    Electronegativity
    C
    Ionisation energy
    D
    `Z_("eff")` on valence shell electron

  • For a gt0,bgt0,cgt0 , which of the following hold good?

    A
    `2(a^(3)+b^(3)+c^(3))ge bc (b+c) +ca( c+a)+ ab (a+b)`
    B
    `(a^(3)+b^(3)+c^(3))/3 ge(a+b+c)/3 . (a^(2)+b^(2)+c^(2))/3`
    C
    `(bc)/(b+c)+(ca)/(c+a)+(ab)/(a+b)lt1/2(a+b+c)`
    D
    `2/(b+c)+2/(c+a)+2/(a+b)lt1/a+1/b+1/c`

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