IGCSE A Level Chemistry Competitive Exam MCQs – Mock Test 179

Catalysts Notes Questions with Answers PDF Download – Test 179

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Free "Catalysts Notes" App (Android & iOS) with MCQ: When molecules become bonded to atoms on the surface of a solid the process is termed as; with answers: chemisorptions only, adsorption only, adsorption and chemisorptions, and desorption for chemistry remote curriculum. Learn Reaction Kinetics Questions and Answers, Apple Book to download free chapter to enhance chemistry virtual literacy.

Catalysts MCQs – Mock Test 179 PDF Download

MCQ 891: When molecules become bonded to atoms on the surface of a solid the process is termed as:

adsorption only
chemisorptions only
desorption
adsorption and chemisorptions

MCQ 892: In Group-IV, melting point decreases:

down the group
across the period (left to right)
across the period (right to left)
up the group

MCQ 893: Reactions which take place on 10-14 to 10-15 seconds are termed as:

Nano chemistry
Femtochemistry
Microchemistry
Biochemistry

MCQ 894: The molecule which fits into a specific site of the enzyme is called:

substance
substrate
products
reactant

MCQ 895: The overall reaction in the series of proper steps is termed as:

mechanism
reaction
reaction mechanism
none of above

IGCSE A Level Chemistry Notes App & eBook – Catalysts Competitive Exam

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