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Statement-1: All halogens are coloured. ...

Statement-1: All halogens are coloured.
Statement-2: Halogens exist in diatomic gaseous state.
Statement-3: `F_(2)` is more reactive than `Cl_(2)`

A

TTT

B

TFT

C

FTT

D

TFF

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the statements provided in the question, we will evaluate each statement one by one and determine their validity. ### Step 1: Evaluate Statement 1 **Statement 1:** All halogens are coloured. - **Analysis:** Halogens include fluorine (F), chlorine (Cl), bromine (Br), and iodine (I). - Fluorine is a pale yellow gas. - Chlorine is a greenish-yellow gas. - Bromine is a reddish-brown liquid. - Iodine is a violet solid that sublimates to form purple vapors. Since all halogens exhibit some form of color, this statement is **true**. ### Step 2: Evaluate Statement 2 **Statement 2:** Halogens exist in diatomic gaseous state. - **Analysis:** Halogens are known to exist as diatomic molecules (e.g., F₂, Cl₂, Br₂, I₂). - Fluorine and chlorine are gases at room temperature, while bromine is a liquid, and iodine is a solid. However, they all form diatomic molecules. Thus, this statement is also **true**. ### Step 3: Evaluate Statement 3 **Statement 3:** F₂ is more reactive than Cl₂. - **Analysis:** While fluorine (F₂) is indeed very reactive, it is important to consider the nature of the bond and the inter-electronic repulsions in the F₂ molecule. - Fluorine has a high electronegativity and a small atomic size, which leads to significant inter-electronic repulsion in the F₂ molecule. This repulsion makes it less stable compared to Cl₂. - Chlorine (Cl₂) is less reactive than fluorine, but it has a more stable bond due to less repulsion. Therefore, this statement is **false**. ### Conclusion - Statement 1: True - Statement 2: True - Statement 3: False The correct answer is that Statements 1 and 2 are true, while Statement 3 is false.
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