Chemical synthesis — Question 117

Original QCE Vault practice · 1 mark

Q117 · Practice questionSimple familiar1 mark

QUESTION 117

In the contact process, sulfur trioxide is absorbed into concentrated sulfuric acid before water is added. Which equation represents the absorption step?

(A)

S O_{3} + H_{2} S O_{4} \to H_{2} S_{2} O_{7}

(B)

S O_{2} + H_{2} O \to H_{2} S O_{3}

(C)

2 S O_{3} \to 2 S O_{2} + O_{2}

(D)

H_{2} S O_{4} \to S O_{3} + H_{2} O

ABCD

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Chemical synthesis — Question 117

QUESTION 117

Answer A

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