FIRST QUARTER EXAMINATION : GENERAL CHEMISTRY 1
Quiz by ANATALIA P. VIOLETA
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- Q1
Characteristic of a substance that can be observed without changing the identity of the substance is known as
Physical property
Chemical propety
Intrinsic property
Extrinsic property
30s - Q2
Solids that lose their shape under certain conditions are called
Semi - liquids
Indefinite solids
Amorphous solids
Semi - solids
30s - Q3
Which of the following scientific fields make significant use of chemical concepts and techniques in meeting the research objectives?
Geology
Biology
All of those sciences
Medicine
30s - Q4
Matter that consists of two or more substances mixed together but are not chemically combined is called
Elements
Compounds
Pure substance
Mixture
30s - Q5
A separation method wherein a mixture of solid and liquid is poured onto a filter is known as
Crystallization
Centrifugation
Filtration
Distillation
30s - Q6
Which of the following is not a chemical material?
Vinegar
Energy
Water
Sugar
30s - Q7
A process of phase change wherein gas phase loses heat energy and changes into a liquid is called
Sublimation
Condensation
Freezing
Boiling
30s - Q8
A pure substance that cannot be changed into a simpler substance by heating or by any chemical process is known as
Atom
Compounds
Molecules
Elements
30s - Q9
An organized ways of solving problems and it involves at least 5 steps is known as
Law
Scientific method
Hypothesis
Theory
30s - Q10
Which of the following is mixture?
Silica
7 - up
Ethanol
Methanol
30s - Q11
Which of these cannot be separated into two or more substances by physical means
Table salt
Kerosene
Cow's milk
Whisky
30s - Q12
An example of a chemical property is
Odor
Reactivity
Color
Taste
30s - Q13
What element is required for the synthesis of hemoglobin?
Chromium
Calcium, Phosphorous
Copper, Iron
iodine
30s - Q14
Which of these can be separated into two or more elements only by a chemical process?
Pure water
Gold
Nitrogen
Hydrogen
30s - Q15
If the temperature of an object is zero kelvin, the temperature on the celsius scale is
32
212
100
- 273
30s