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Question on Quantum Numbers

How many electrons with azimuthal quantum number, l = 3 are present in an atom having atomic number 54?

    • #Chemistry
    • #Physical Chemistry
    • #Atomic Structure
    • #Quantum Numbers
  • 6 months ago
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Question on Atomic Weight

A mono atomic ion has the same atomic number and same atomic weight as its neutral atom. Is this statement true or false?

    • #Chemistry
    • #Physical Chemistry
    • #Atomic Weight
    • #Atomic Number
  • 6 months ago
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Question on Addition Reaction

When but-3-en-2-ol reacts with aq. HBr, how many products are formed and what are they?

    • #Chemistry
    • #Organic Chemistry
    • #Alkenes
    • #Addition Reaction
  • 6 months ago
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Question on Nucleophilic Strength

Among CH3-, NH2-, OH- and F- which one is the best Nucleophile?

    • #Chemistry
    • #Organic Chemistry
    • #Nucleophilic Strength
  • 6 months ago
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Question on Photochemical Bromination

What is the relative amounts of 1-bromopropane and 2-bromopropane obtained from the photochemical bromination of propane, if the relative reactivity of 1° : 2° : 3° Hydrogens to photochemical bromination is 1 : 82 : 1600?

    • #Chemistry
    • #Organic Chemistry
    • #Photochemical Bromination
    • #Alkanes
  • 6 months ago
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Question on Unsaturation

The Molecular formula of an organic compound is C10H16 and takes 2 moles of hydrogen per mole of it. How many rings are likely to be present in its structure?

    • #Chemistry
    • #Organic Chemistry
    • #Unsaturation
    • #Degree of Unsaturation
  • 6 months ago
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Question on Photochemical Chlorination

Isopentane, (CH3)2CH.CH2.CH3 can form four isomeric monochloro derivatives on photochemical Chlorination. How many of these are optically active?

    • #Chemistry
    • #Organic Chemistry
    • #Alkanes
    • #Photochemical Chlorination
  • 6 months ago
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Question on Nitrogen Oxides

Which oxide of Nitrogen is produced on heating a mixture of ammonium sulphate and sodium nitrate?

    • #Chemistry
    • #Inorganic Chemistry
    • #Nitrogen Oxides
  • 6 months ago
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Question on Gaseous State

A gas is heated in such a way that its pressure and volume both becomes double. Then by decreasing temperature, some of the molecules of the air have been taken in container to maintain the doubled volume and pressure. Assuming one-fourth of initial number of moles has been taken in for the purpose, by what fraction the temperature must have been raised finally of initial absolute temperature?

    • #Chemistry
    • #Physical Chemistry
    • #Gaseous State
  • 7 months ago
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Question on Dehydration

What does Orthophosphoric Acid give on strong heating?

    • #Chemistry
    • #Inorganic Chemistry
    • #Phosphorus
    • #Heating
  • 7 months ago
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