Everyday Science — All MCQs
2717 questions available
Q881.Carbon dioxide was discovered by____?
Correct Answer: C
Carbon dioxide was discovered by Scottish chemist Joseph Black in 1754.
Q882.Carbon,Diamond and Graphite are together called:____?
Correct Answer: A
Carbon, diamond, and graphite are all allotropes of the element carbon — same element, different structural forms.
Q883.Carpology is a discipline devoted to the study of what?
Correct Answer: C
Carpology is the branch of botany devoted to the study of seeds and fruits.
Q884.Cataract is a disease of ____?
Correct Answer: A
Cataract is a disease of the eyes, involving clouding of the eye's lens.
Q885.Cause of Malaria is ____?
Correct Answer: C
Malaria is caused by Plasmodium parasites transmitted through the bite of infected female Anopheles mosquitoes.
Q886.Caustic Soda is extensively used for making ____?
Correct Answer: B
Caustic soda (sodium hydroxide) is extensively used in the manufacture of soap.
Q887.Celestial body that affects tides of Ocean is?
Correct Answer: B
The Moon is the celestial body with the greatest influence on Earth's ocean tides, followed by the Sun.
Q888.Cell or Tissue death within a living body is called as____?
Correct Answer: C
The death of cells or tissue within a living body is called necrosis.
Q889.Central Color of Rainbow is____?
Correct Answer: B
The central colour of a rainbow, appearing in the middle of the spectrum band, is green.
Q890.Change of state form liquid to solid is ____?
Correct Answer: B
The change of state from liquid to solid is called freezing.
Q891.Characteristic odour of garlic is due to?
Correct Answer: B
The characteristic odour of garlic comes from sulphur compounds. Crushing garlic releases volatile organosulfur molecules, including allicin-related compounds, which produce its strong smell.
Q892.Charge carriers in a metal are electrons rather than protons because electrons are?
Correct Answer: C
Electrons carry charge through a metal because they are loosely bound to their atoms. These mobile outer electrons can move through the metal lattice when an electric field is applied.
Q893.Chemical formula for Water is ____ ?
Correct Answer: B
The chemical formula of water is H2O. Each water molecule contains two hydrogen atoms bonded to one oxygen atom.
Q894.Chemical Name of Dry Ice?
Correct Answer: A
Chemical Name of Dry Ice: Solid Carbon Dioxide. Its composition and chemical or physical behavior give it the stated classification or property.
Q895.Chemical name of vinegar is ____?
Correct Answer: B
Chemical name of vinegar is Dilute acetic acid. Its composition and chemical or physical behavior give it the stated classification or property.
Q896.Chemical used to kill rats and mice are ?
Correct Answer: B
Chemical used to kill rats and mice are Rodenticides. Its composition and chemical or physical behavior give it the stated classification or property.
Q897.Chemically finger nails are made up of ____?
Correct Answer: C
Chemically finger nails are made up of protein. Its composition and chemical or physical behavior give it the stated classification or property.
Q898.Chiken egg is composed of ____ cells?
Correct Answer: A
Chiken egg is composed of One cell cells. This follows from the structure and normal physiological function of the relevant organ, tissue, or body system.
Q899.Chili contain which vitamin?
Correct Answer: C
Chili contain which vitamin: Vitamin C. Vitamins support specific metabolic and physiological functions, and their properties determine their sources, solubility, and deficiency effects.
Q900.Chlorophyll contains ____metal.
Correct Answer: C
Chlorophyll contains magnesium. A magnesium ion sits at the center of its ring structure and helps the molecule absorb light for photosynthesis.