12th Grade Chemistry Quiz
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Questions and Answers

What is the chemical symbol for gold?

  • Ac
  • Al
  • Ag
  • Au (correct)
  • Which subatomic particle has a positive charge?

  • Electron
  • Proton (correct)
  • Isotope
  • Neutron
  • What is the most abundant gas in the Earth's atmosphere?

  • Oxygen
  • Nitrogen (correct)
  • Hydrogen
  • Carbon Dioxide
  • परमाणु का किसके द्वारा निर्धारण किया जाता है?

    <p>नील्स बोहर</p> Signup and view all the answers

    ऑक्सीकरण संख्या क्या होती है?

    <p>वायलेंस इलेक्ट्रॉन की संख्या</p> Signup and view all the answers

    सभी तत्वों में कौन सी क्षमता एक सामान्य धातु की तुलना में सबसे अधिक होती है?

    <p>विद्युत चुंबकत्व</p> Signup and view all the answers

    Study Notes

    Chemistry Basics

    • The chemical symbol for gold is Au.
    • The subatomic particle with a positive charge is the proton.
    • The most abundant gas in the Earth's atmosphere is nitrogen.

    Atomic Structure and Properties

    • The atomic number of an element determines its identity.
    • Oxidation number represents the charge an atom would have if it were an ion.
    • The ionization potential is the energy required to remove an electron from an atom. Metals generally have lower ionization potentials compared to nonmetals.

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    Description

    Test your knowledge of chemistry with these important questions for 12th class students. Challenge yourself with questions about chemical symbols, subatomic particles, and the composition of Earth's atmosphere.

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