Multiple choice

Which of the following catalysts are used in catalytic cracking? (a) Silica-alumina (b) Lithium aluminium hydride (c) Zeolites (d) Anhydrous aluminium chloride (e) Aluminum hydrosilicate

  1. (a), (b), (c) and (d)

  2. (a), (c) and (e)

  3. (a), (c) and (d)

  4. (b), (c) and (e)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Silica-alumina, zeolites and aluminium hydrosilicate are used in catalytic cracking. Lithium aluminium hydride used as a reducing agent in organic synthesis, especially for the reduction of esters, carboxylic acids, and amides. Anhydrous aluminium chloride is used as a catalyst for Friedel-Crafts reactions (both acylation and alkylation).

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