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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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