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SCIENCE FUNDAMENTALS MCQs

General Science Mixed, Science, Fundamentals Vectors

Total Questions : 736 | Page 70 of 74 pages
Question 691. The age of most ancient geological formations is estimated by
  1.    Ra - Si method
  2.    Potassium - argon method
  3.    C14 method
  4.    Uranium - lead method
 Discuss Question
Answer: Option C. -> C14 method
Question 692. Who suggested that most of the mass of the atom is located in the nucleus?
  1.    Thompson
  2.    Bohr
  3.    Rutherford
  4.    Einstein
 Discuss Question
Answer: Option C. -> Rutherford
Question 693. In an atomic nucleus, neutrons and protons are held together by:
  1.    Exchange forces
  2.    Gravitational forces
  3.    Magnetic forces
  4.    Coulombic forces
 Discuss Question
Answer: Option A. -> Exchange forces
Question 694. Which of the following rays are the most penetrating?
  1.    Alpha rays
  2.    X-rays
  3.    Gamma rays
  4.    Beta rays
 Discuss Question
Answer: Option C. -> Gamma rays
Question 695. Which is/are the important raw material(s) required in cement industry?
  1.    Clay
  2.    Limestone
  3.    Gypsum and Clay
  4.    Limestone and Clay
 Discuss Question
Answer: Option D. -> Limestone and Clay
Question 696. How many colours the sunlight spectrum has?
  1.    Five
  2.    Three
  3.    Seven
  4.    Four
 Discuss Question
Answer: Option C. -> Seven
Question 697. Atoms of an element differ from those of all other elements in
  1.    Number of neutrons and electronic configuration.
  2.    Atomic number and number of valence electrons.
  3.    Atomic number and electronic configuration.
  4.    Number of neutrons and number of valence electrons.
 Discuss Question
Answer: Option A. -> Number of neutrons and electronic configuration.
Question 698. According to Avogadro's Hypothesis, the smallest particle of an element or a compound, that can exist independently, is called:
  1.    A cation
  2.    An atom
  3.    An anion
  4.    A molecule
 Discuss Question
Answer: Option D. -> A molecule
Question 699. Which of the following is used for removing air bubbles from glass during its manufacture?
  1.    Feldspar
  2.    Arsenous oxide
  3.    Potassium carbonate
  4.    Soda ash
 Discuss Question
Answer: Option B. -> Arsenous oxide
Question 700. Epoxy resins are used as:
  1.    Insecticides
  2.    Adhesives
  3.    Moth repellents
  4.    Detergents
 Discuss Question
Answer: Option B. -> Adhesives

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