Reaction between $N a C l$ and $H_{2} S O_{4}$ gives $H C l$ and is a:

irreversible reaction

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reversible reaction

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exothermic

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both A and C

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Solution

The correct option is A irreversible reaction
Reaction at room tenperature is:
$N a C l (s) + H_{2} S O_{4} (s) \to N a H S O_{4} (s) + H C l (g) ↑$
The reaction is irreversible as $H C l$ escapes out.
Upon heating it above $200^{\circ} C$ reaction proceeds even further as:
$N a C l (s) + N a H S O_{4} (s) \to H C l (g) ↑ + N a_{2} S O_{4} (s)$
Therefore its an endothermic reaction
thus only option A is correct.

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Similar questions

In the following series of reactions

$N a C l + A \to B + H C l$ , $B + c o k e \to N a_{2} S + C O$

$N a_{2} S + C \to N a_{2} C O_{3} + C a S A$ , $B$ and $C$ are respectively

H C l + N a O H \to N a C l + H_{2} O + x c a l

H_{2} S O_{4} + 2 N a O H \to N a_{2} S O_{4} + 2 H_{2} O + y c a l

In the given reactions, what is the relation between

x

and

y

N a C l + H_{2} S O_{4} ⟶ N a H S O_{4} + H C l

This reaction occurs when temperature is :

Q. What's the difference between these two rxns
NaCl + H2SO4 --> Na2SO4 + HCl
NaCl +H2SO4 --> NaHSO4 + HCl

(i) How will you distinguish between dilute H₂SO₄ and conc H₂SO₄?
(ii) How will you distinguish between conc. HCl and conc. H₂SO₄?
(iii) Give main differences between drying agent and dehydrating agent.

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Reaction between NaCl and H2SO4 gives HCl and is a:

Reaction between $N a C l$ and $H_{2} S O_{4}$ gives $H C l$ and is a: