IGCSE O Level Chemistry MCQs – Mock Test 105

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MCQ 521: Energy can be conserved through:

insulating lofts with fiber glass
use of lame burn engines
using catalytic converters
controlling temperature

MCQ 522: The Symbol Hg is of:

helium
Hydrargyrum
hydrogen
Natrium

MCQ 523: In an endothermic reaction,:

more light is produced
chemical bonds are formed
a lot of steam is produced
products contain more energy than the reactants

MCQ 524: On passing electricity through the electrolyte solution,:

the electrolyte splits up
the electrolyte decomposes
the ions migrate towards oppositely charged electrodes
all of above

MCQ 525: What is correct about washing soda?

it is acidic
it is alkaline
it is neutral
it is basic

IGCSE O Level Chemistry Quiz App & eBook – Save Energy: O Level Chemistry Admission Tests

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