Everyday Science
Everyday Science MCQs With Answers
650 Everyday Science MCQs for CSS, PPSC, FPSC, NTS and entry-test preparation. Take a scored quiz instead →
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What is the chemical name of Plaster of Paris?
ACalcium Sulphate Hemihydrate
BMagnesium Sulphate
CCalcium Oxide
DCalcium Carbonate
What is the principal ore from which aluminum metal is commercially extracted?
AHematite
BBauxite
CGalena
DMagnetite
Which acid is present in gastric juice produced by the human stomach to aid digestion?
AAcetic Acid (CH3COOH)
BHydrochloric Acid (HCl)
CSulfuric Acid (H2SO4)
DNitric Acid (HNO3)
What is the chief ore of iron used in steel production?
AHematite
BBauxite
CCinnabar
DSphalerite
Which acid gives vinegar its characteristic sour taste and odor?
ATartaric Acid
BAcetic Acid
CLactic Acid
DCitric Acid
Cinnabar is the primary ore of which heavy metal?
ACopper
BMercury
CZinc
DLead
Which acid is naturally found in citrus fruits like lemons, oranges, and limes?
AMalic Acid
BCitric Acid
COxalic Acid
DFormic Acid
Galena is the principal mineral ore of which soft metal?
AIron
BLead
CTin
DCopper
Which acid is injected into the skin during an ant or bee sting?
AAcetic Acid
BFormic Acid (Methanoic Acid)
COxalic Acid
DCitric Acid
Which phenomenon causes a pencil partially submerged in water to appear bent at the surface?
ADispersion of light
BRefraction of light
CDiffraction of light
DReflection of light