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Which reactio...

Question

Which reaction is not feasible?

A

2KI + Br₂ $\rightarrow$ 2KBr + I₂

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B

2KBr + I₂ $\rightarrow$ 2KI + Br₂

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C

2KBr + Cl₂ $\rightarrow$ 2KCl + Br₂

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D

2H₂O + 2F₂ $\rightarrow$ 4HF + O₂

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Solution

The correct option is B
2KBr + I₂ $\rightarrow$ 2KI + Br₂

Oxidising ability decreases from $F_{2}$ to $I_{2}$ . A more active non metal displaces less active non metal from its solution.

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Similar questions

Q. Which reaction is this?

2 K I + C l_{2} \to 2 K C l + I_{2}

Q. Consider the reaction:

C l_{2} + 2 K I \to I_{2} + 2 K C l

Which species will be reduced at the cathode?

Q. In the reaction of Cl₂ + 2KI -> 2KCl + I₂ the conversion of 2I to I₂ is deemed as _____ [OXIDATION / REDUCTION]

Q. Match the following

	Column-1		Column-2
A	Acidic reactions	p	${C l}_{2} + 2 K B r \to 2 K C l + {B r}_{2}$
B	Displacement reactions	q	$C a + {C l}_{2} \to {C a C l}_{2}$
C	Oxidising properties	r	${C l}_{2} + H_{2} O \to H O C l + H C l$
D	Addition reactions	s	$2 K I \to {C l}_{2} + 2 K C l + I_{2}$
E	Reaction with metals	t	${S O}_{2} + {C l}_{2} \to {S O}_{2} {C l}_{2}$

Q. In the following sequence of reactions:

C a O C l_{2} + H_{2} O ⟶ C a (O H)_{2} + C l_{2}

2 K I + C l_{2} ⟶ 2 K C l + I_{2}

I_{2} + 2 N a_{2} S_{2} O_{3} ⟶ N a_{2} S_{4} O_{6} + 2 N a I

Calculate moles of

N a_{2} S_{2} O_{3}

required for complete reduction of

I_{2}

127

C a O C l_{2}

50 %

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Standard XII Chemistry

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