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Chemistry Test 153
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Chemistry Test 153
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  • Question 1/10
    4 / -1

    Which one of the following orders is not in accordance with the property stated aginst is?

    Solutions

    Bond dissociation energy of fluorine is less because of its small size and repulsion between electrons of two atoms. So option (c) is wrong order. The correct order is [Cl2 > Br2 > F2 > I2]

     

  • Question 2/10
    4 / -1

    Select the true statement about benzene amongst the following

    Solutions

    Benzene do not show addition reaction like other unsaturated hydrocarbons. However, it shows substitution reaction. Due to resonance all the C-C bonds have the same nature, which is possible because of the cyclic delocalisation of pi electrons in benzene. Monosubstitution will give only a single product.

     

  • Question 3/10
    4 / -1

    The depression in freezing point for 1 M urea, 1 M glucose and 1 M NaCl are in ratio:

    Solutions

     

  • Question 4/10
    4 / -1

    Which will make basic buffer?

  • Question 5/10
    4 / -1

    A chelating agent has two or more than two donor atoms to bind to a single metal ion. Which of the following is not a chelating agent?

    Solutions

    The chelating ligand is a ligand that has two donor atoms to bind a single metal ion. Glycinato has 2 oxygen atoms as donor atoms. It is a chelating ligand. Oxalato has 2 oxygen atoms as donor atoms. It is a chelating ligand. Thiosulphato (S2O3^2−) is an ambidentate ligand. not a chelating ligand.

     

  • Question 6/10
    4 / -1

    A gas occupies a volume of 300 cc at 27°C and 620 mm pressure. The volume of gas at 47°C and 640 mm pressure is:

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  • Question 7/10
    4 / -1

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  • Question 8/10
    4 / -1

    Which of the following has the maximum number of unpaired electrons?

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  • Question 9/10
    4 / -1

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  • Question 10/10
    4 / -1

    Solutions

     

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