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Chemistry Test ...

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  • Question 1
    4 / -1

    Identify the pair of elements with the highest and lowest electronegativity respectively

  • Question 2
    4 / -1

    Which of the following facts regarding boron and silicon is not true?

  • Question 3
    4 / -1

    Electrolysis of dilute aqueous NaCl solution was carried out by passing 10 mA current. The time required to liberate 0.01 mol of H2 gas at the cathode is (1 F = 96500C mol−1)

  • Question 4
    4 / -1

    The rate of reaction becomes double when its temperature is raised from 300 K to 330 K. The activation energy of the reaction is (Given: log 2 = 0.30)

  • Question 5
    4 / -1

    An oxide of nitrogen is reddish brown and paramagnetic at room temperature but it decolourises and also loses its paramagnetism on freezing it. The oxide at room temperature is

  • Question 6
    4 / -1

    Ethanal reacts with HCN and the addition product so obtained is hydrolyzed to form a new compound. This compound shows

  • Question 7
    4 / -1

    The correct combination is:

  • Question 8
    4 / -1

    On treatment of the following compound with a strong acid, the most susceptible site for bond cleavage is

  • Question 9
    4 / -1

    Haemoglobin and gold sol are examples of:

  • Question 10
    4 / -1

    The major product of the following reaction is

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