Chemistry IX - Introduction

Chemistry IX - Introduction

1. Branch of science that deals with the composition of matter and changes in it is called:

a) Physics
b) Chemistry
c) Biology
d) Geography

2. To investigate the material that makes up the eath and rest of the universe is the task of:

a) Physics
b) Chemistry
c) Biology
d) Geology

3. Standard method of denoting scientific nation is shown in:

a) 476 P
b) 46.78 P
c) 4.76 P
d) 0.467 P

4. Decimal is shifted in the given number towards left, the exponent is:

a) Negative
b) Positive
c) Neither nagative nor positive
d) None of these

5. When decimal is shifted in the given number towards right, the exponent is:

a) Negative
b) Positive
c) Neither nagative nor positive
d) None of these

6. In the multiplication with exponential nations , the exponents are:

a) Divided
b) Subtraction
c) None of these
d) Added

7. In the division with exponential nations, the exponents are:

a) Divided
b) Added
c) None of these
d) Subtraction

8. In addition and subtraction, with exponential nations, exponents are brought to:

a) Same power
b) Powers are subtracted
c) Different power
d) None of the above

9. Which one digit has one significant figure:

a) 0.004
b) 10.37
c) 3.3
d) None of these

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