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Subjects
Science Test Space
Class 8
Applied chemistry
Nano to Electrochemistry
1.
Choose the best: Nano chemistry
Question:
3
m.
Select the correct answers to the following questions:
1.
Which branch of chemistry deals with daily life in various fields?
Physical chemistry
Applied chemistry
Organic chemistry
All of these
2.
The DNA double helix is __________ nm across.
\(2)
\(1.99\)
\(0.2\)
\(0.02\)
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