(A) H2SO4 is used in the preparation of HCl from NaCl(R) H2SO4 is lower volatile acid than HCl

(A) H2SO4 is used in the preparation of HCl from NaCl:This statement is correct. HCl can be prepared from NaCl and H2SO4 by the following reaction:2 NaCl + H2SO4 → Na2SO4 + 2 HClHere, H2SO4 reacts with NaCl to form Na2SO4 and HCl.(R) H2SO4 is lower volatile acid than HCl:This statement is also correct. H2SO4 is a lower volatile acid than HCl. This means that H2SO4 has a lower tendency to vaporize or evaporate compared to HCl at the same temperature and pressure.However, (R) is not the correct explanation for (A). The use of H2SO4 in the preparation of HCl from NaCl is due to the fact that H2SO4 is a strong acid that can react with NaCl to form Na2SO4 and HCl. The relative volatility of the two acids is not the reason for the use of H2SO4 in this reaction.

(A) H2SO4 is used in the preparation of HCl from NaCl(R) H2SO4 is lower volatile acid than HCl

(A) H2SO4 is used in the preparation of HCl from NaCl:This statement is correct. HCl can be prepared from NaCl and H2SO4 by the following reaction:2 NaCl + H2SO4 → Na2SO4 + 2 HClHere, H2SO4 reacts with NaCl to form Na2SO4 and HCl.(R) H2SO4 is lower volatile acid than HCl:This statement is also correct. H2SO4 is a lower volatile acid than HCl. This means that H2SO4 has a lower tendency to vaporize or evaporate compared to HCl at the same temperature and pressure.However, (R) is not the correct explanation for (A). The use of H2SO4 in the preparation of HCl from NaCl is due to the fact that H2SO4 is a strong acid that can react with NaCl to form Na2SO4 and HCl. The relative volatility of the two acids is not the reason for the use of H2SO4 in this reaction.

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(A) H₂SO₄ is used in the preparation of HCl from NaCl
(R) H₂SO₄ is lower volatile acid than HCl

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Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are true and (R) is not the correct explanation of (A)

(A) is true but (R) is false

Both (A) and (R) are false

answer is B.

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Detailed Solution

(A) H₂SO₄ is used in the preparation of HCl from NaCl:

This statement is correct. HCl can be prepared from NaCl and H₂SO₄ by the following reaction:

2 NaCl + H₂SO₄ → Na₂SO₄+ 2 HCl

Here, H₂SO₄ reacts with NaCl to form Na₂SO₄ and HCl.

(R) H₂SO₄ is lower volatile acid than HCl:

This statement is also correct. H₂SO₄ is a lower volatile acid than HCl. This means that H₂SO₄ has a lower tendency to vaporize or evaporate compared to HCl at the same temperature and pressure.

However, (R) is not the correct explanation for (A). The use of H₂SO₄ in the preparation of HCl from NaCl is due to the fact that H₂SO₄ is a strong acid that can react with NaCl to form Na₂SO₄ and HCl. The relative volatility of the two acids is not the reason for the use of H₂SO₄ in this reaction.

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