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  • Question
  • A sample of matter must be copper if


  • Options
  • A. atoms in the sample react with oxygen
  • B. the sample can conduct electricity
  • C. each atom in the sample has 29 protons
  • D. the sample melts at 1768k

  • Correct Answer
  • each atom in the sample has 29 protons 

    Explanation

    A sample of matter must be copper if each atom in the sample has 29 protons.

  • Tags: AIEEE, Bank Exams, Analyst, Bank Clerk, Bank PO

    Chemistry problems


    Search Results


    • 1. Diamond is harder than Graphite because of

    • Options
    • A. tetrahedral structure of diamond
    • B. difference of crystalline structures
    • C. difference of layers of atoms
    • D. hexagonal structure of graphite
    • Discuss
    • 2. Permanent hardness of water may be removed by the addition of

    • Options
    • A. Alum
    • B. Lime
    • C. Sodium Carbonate
    • D. Potassium Permanganate
    • Discuss
    • 3. Non metal found in liquid state?

    • Options
    • A. Chlorine
    • B. Bromine
    • C. Fluorine
    • D. Iodine
    • Discuss
    • 4. Shock resisting steels should have

    • Options
    • A. toughness
    • B. low wear resistance
    • C. low tensile strength
    • D. low hardness
    • Discuss
    • 5. Kaolin is chemically classified as

    • Options
    • A. Argillaceous rock
    • B. Silicious rock
    • C. Metamorphic rock
    • D. Calcareous rock
    • Discuss
    • 6. PCP is more commonly known as

    • Options
    • A. Acid
    • B. Angel dust
    • C. Ecstasy
    • D. None of the above
    • Discuss
    • 7. German Silver contains

    • Options
    • A. 100% pure silver
    • B. 10% silver
    • C. 1% silver
    • D. 0% silver
    • Discuss
    • 8. Which of these rules are applicable for naming covalent compounds?

    • Options
    • A. nonmetal name + nonmetal name + suffix ?ide
    • B. nonmetal name + nonmetal name + suffix ?ite
    • C. metal name + nonmetal name + suffix ?ide
    • D. metal name + nonmetal name + suffix ?ite
    • Discuss
    • 9. The hazardous component in most antifreeze is

    • Options
    • A. Ethane alcohol
    • B. Ethylene Glycol
    • C. Ehtylene
    • D. Ethene
    • Discuss
    • 10. Which among the following minerals is also known as Horn Silver?

    • Options
    • A. Silver Chroride
    • B. Zinc Phosphate
    • C. Silver Iodide
    • D. Silver Sulphide
    • Discuss


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