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Why are microbial enzymes increasingly preferred over chemical catalysts in industry?
AThey form many extra by-products
BThey demand very high temperature only
CThey work at low temperature, pH and pressure
DThey cannot be reused after a reaction
Answer & Solution
Correct answer: C. They work at low temperature, pH and pressure
1. Microbial enzymes act at low temperature, pH and pressure, saving energy.
2. Low conditions also avoid the need for erosion-proof instruments.
3. They are specific, so few by-products form, ruling out the by-product choice.
4. Such enzymes can be reused, so the "cannot be reused" option is wrong.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology Part 2, Ch 7 "Introduction to Microbiology", p.90_
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