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  • Question

  • The number of electrons presents in H+ is


  • Options
  • A. zero
  • B. one
  • C. two
  • D. three

  • Correct Answer
  • zero 

    Explanation
    H+ is a hydrogen ion, and it is an ion because it LOST an electron. Electrons are negatively charged. When an atom gains electrons it will have NEGATIVE charges.

    So it has zero electron.

    Chemistry problems

    Search Results

    • 1. The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle?

    • Options
    • A. 3 billion years
    • B. 100 years
    • C. 0.01 minute
    • D. 13 days
      • Discuss
    • 2. The nucleus of a hydrogen atom consists of

    • Options
    • A. 1 proton only
    • B. 1 proton + 2 neutron
    • C. 1 neutron only
    • D. 1 electron only
      • Discuss
    • 3. The most important ore of aluminium is

    • Options
    • A. bauxite
    • B. magnetite
    • C. haematite
    • D. monazite
      • Discuss
    • 4. The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is

    • Options
    • A. 5x/36
    • B. 5x
    • C. 7.2 x
    • D. x/6
      • Discuss
    • 5. The molecular formula of phosphorous is

    • Options
    • A. P1
    • B. P2
    • C. P3
    • D. P4
      • Discuss
    • 6. The inherited traits of an organism are controlled by

    • Options
    • A. RNA molecules
    • B. nucleotides
    • C. DNA molecules
    • D. enzymes
      • Discuss
    • 7. The number of waves made by an electron moving in an orbit having maximum magnetic quantum number is +3

    • Options
    • A. 4
    • B. 5
    • C. 2
    • D. zero
      • Discuss
    • 8. The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in

    • Options
    • A. 1.8 gram of H2O
    • B. 12 moles of KMnO4
    • C. 0.6N H2SO4
    • D. 4.6 gram of C2H5OH
      • Discuss
    • 9. The most commonly used bleaching agent is

    • Options
    • A. alcohol
    • B. carbon dioxide
    • C. chlorine
    • D. sodium chlorine
      • Discuss
    • 10. The metal used to recover copper from a solution of copper sulphate is

    • Options
    • A. Na
    • B. Ag
    • C. Hg
    • D. Fe
      • Discuss

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