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Subjects
Science State Board
Class 9
Applied chemistry
Textbook questions
2.
Choose the correct answer II
Exercise condition:
3
m.
1.
The cathode of an electrochemical reaction involves __________.
neutralisation
oxidation
reduction
catenation
2.
The age of a dead animal can be determined by using an isotope of __________.
carbon
iodine
phosphorous
oxygen
3.
Which of the following does not contain natural dyes?
Turmeric
Carrot
Potato
Beetroot
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