1. The systematic study of composition of matter; investigating the properties and reactions
d. History
A. Multiple Choice Questions (MCQs)
and the use of these reactions to form new substances.
a. Science
bChemistry
c. Civics
2. Rayon and nylon are
a. detergents bé synthetic fibres
d. fertilizers
c. natural fibres
3. Which of the following substances is used to increase shelf life of food?
a fertilizers
b. food preservatives c. pesticides
4. The basic concept of Dalton's atomic theory is that matter consists of small indivisible per
d. food non
b. molecules
c. micro particles
atoms
d. none of the
d. D.I. Mendes
5. Who discovered oxygen?
2. Amedo Avogadro b Joseph Priestley c. Marie Curie
B. Fill in the blanks.
1. Chemistry is a
of science.
2. Chemistry deals with the
of matter and the
undergo in various conditions.
Answers
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Answer:
A.2.Rayon and Nylon are natural fibres
3.food Preservatives
4.b molecules
5.Oxygen was discovered by Jos3ph Priestley
B
1.Chemistry is a branch of Science.
2.Chemistry deals with the substance of matter and the matters undergo in various conditions.
Explanation:
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