IGCSE O Level Chemistry Practice Test 145
Exothermic Reactions Quiz Questions and Answers PDF Download - 145
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Exothermic Reactions Questions and Answers PDF Download: MCQ 145
Burning of methane (CH4) gives off heat and
- carbon dioxide (gas) only
- water (gas) only
- hydrogen gas
- carbon dioxide (gas) and water (gas)
Uses of enzymes do not include
- production of insulin
- production of cancer drugs
- drug to combat plague
- drug to fight dwarfism
After the electrolysis of brine, the resulting solution largely contains
- Cl2 gas
- NaCl
- NaOH
- H2 gas
Formula of Calcium Nitride (Ca3N2) is
- Ca3N5
- Ca3NO2
- Ca3N2
- Ca2N5
Which statement is correct about the conductor?
- it changes while conducting electricity
- it does not change while conducting electricity
- it does not allow flow of electricity
- it cannot operate at high pressures
IGCSE O Level Chemistry Exam Prep Tests
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