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Standard XI

Business Studies

Multinational Corporation and Its Features

Choose the co...

Question

Choose the correct answer.
The most reactive halogen is __________.

$F_{2}$

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${C l}_{2}$

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${B r}_{2}$

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$I_{2}$

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Solution

The correct option is A
$F_{2}$

Reactivity series - The ability of an element to displace another element is known as its relative position in the activity series.
Halogen activity series - $F_{2}$ > ${Cl}_{2}$ > ${Br}_{2}$ > $I_{2}$
Florine is the most reactive element and Iodine is the least reactive element.
The more active halogen displaces the less active halogen from its compound.
Therefore option (a) F₂ is the correct answer.

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Similar questions

Q. Choose the correct answer.

A thermodynamic state function is a quantity :

Q. The first

(Δ_{i} H_{1})

and the second

(Δ_{i} H_{2})

ionization enthalpies (in kJ mol

^{- 1}

) and the

(Δ_{e g} H)

electron gain enthalpy (in kJ mol

^{- 1}

) of a few elements are given below:

Elements	$Δ H_{1}$	$Δ H_{2}$	$Δ_{e g}$ H
I	520	7300	-60
II	419	3051	-48
III	1681	3374	-328
IV	1008	1846	-295
V	2372	5251	+48
VI	738	1451	-40

Which of the above elements is likely to be :
(a) the least reactive element,
(b) the most reactive metal,
(c) the most reactive non-metal,
(d) the least reactive non-metal,
(e) the metal which can form a stable binary halide of the formula MX

_{2}

(X=halogen) and
(f) the metal which can form a predominantly stable covalent halide of the formula MX (X=halogen)?

In the given reaction, $M_{A}$ is a metal A and $M_{B}$ is a metal B. Choose the correct options regarding the reactivities of $M_{A}$ and $M_{B}$ .
$M_{A} + S a l t o f M_{B}$
$\to M_{B} + S a l t o f M_{A}$

Q. In the following questions a statement of assertion

(A)

followed by a statement of reason

(R)

is given. Choose the correct option out of the choices given below each question. Assertion

(A)

: Among halogens fluorine is the best oxidant. Reason

(R)

: Fluorine is the most electronegative atom.

The first (Δ_iH1) and the second (Δ_iH) ionization enthalpies (in kJ mol^–1) and the (Δ_egH) electron gain enthalpy (in kJ mol^–1) of a few elements are given below:

Elements	Δ_iH	Δ_iH	Δ_egH
I	520	7300	–60
II	419	3051	–48
III	1681	3374	–328
IV	1008	1846	–295
V	2372	5251	+48
VI	738	1451	–40

Which of the above elements is likely to be :

(a) the least reactive element.

(b) the most reactive metal.

(d) the least reactive non-metal.

(e) the metal which can form a stable binary halide of the formula MX₂, (X=halogen).

(f) the metal which can form a predominantly stable covalent halide of the formula MX (X=halogen)?

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Choose the correct answer.The most reactive halogen is __________.

Choose the correct answer.
The most reactive halogen is __________.