Everyday Science
Everyday Science MCQs With Answers
696 Everyday Science MCQs for CSS, PPSC, FPSC, NTS and entry-test preparation. Take a scored quiz instead →
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What term describes chemical elements, such as silicon and boron, that display a combination of properties intermediate between typical metals and typical non-metals?
AMetalloids
BNoble gases
CAlkali metals
DHalogens
Applying a protective coat of paint or oil to an iron or steel surface is a common and simple method used to help prevent what process?
AFermentation
BNuclear decay only
CRusting, or corrosion
DPhotosynthesis
What term describes the amount of heat energy required to raise the temperature of a specific mass of a substance by a given amount, a property that notably differs between materials?
ASpecific heat capacity
BThermal conductivity only
CLatent heat
DDensity only
Silicon, an element widely used in the electronics industry, is the second most abundant element found in Earth’s crust, ranking just behind which other element?
AIron
BOxygen
CAluminum
DCarbon
The Haber process, an important industrial chemical process, is primarily used to manufacture which widely used compound from nitrogen and hydrogen gases?
ACarbon dioxide
BSodium chloride
CSulfuric acid
DAmmonia
What generally happens to the size or volume of most solid materials when they are heated, a phenomenon relevant to the design of structures like bridges and railway tracks?
AThey remain exactly the same size regardless of temperature
BThey typically shrink significantly
CThey immediately convert into a liquid
DThey typically expand somewhat
What term describes a type of chemical bond formed through the complete transfer of one or more electrons from one atom to another, resulting in oppositely charged ions that attract each other?
ACovalent bond
BIonic bond
CHydrogen bond only
DMetallic bond only
The Contact process, another significant industrial chemical process, is primarily used to manufacture which important industrial acid?
ASulfuric acid
BHydrochloric acid
CAcetic acid
DNitric acid
Why do railway tracks and long bridges typically include small gaps or specially designed expansion joints at regular intervals along their length?
ATo help the structure conduct electricity more efficiently
BTo make the structure easier to disassemble later
CTo reduce the overall weight of the structure
DTo allow room for the materials to expand and contract safely with changing temperatures, preventing buckling or damage
What term describes a type of chemical bond formed when two atoms share one or more pairs of electrons between them, rather than one atom fully transferring electrons to the other?
AMetallic bond only
BVan der Waals bond only
CCovalent bond
DIonic bond