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Chemistry Test-...

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  • Question 1
    4 / -1

    The order of basic strength in gas phase of the following compound would be

  • Question 2
    4 / -1

    The reaction: \(\mathrm{n}-\mathrm{BuBr}+\mathrm{KCN} \frac{\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}-\mathrm{H}_{2} \mathrm{O}}{\rightarrow} \mathrm{n}-\mathrm{BuCN}\) is an example of:

  • Question 3
    4 / -1

    The general formula CnH2nO2 could be for open chain __________.

  • Question 4
    4 / -1

    Hybridisation shown by carbon and oxygen of –OH group in phenol are respectively

  • Question 5
    4 / -1

    The sp3 d2 hybridisation of central atom of a molecule would lead to

  • Question 6
    4 / -1

    The coordination number of Cu in [Cu(H2O)4]2+ complex is

  • Question 7
    4 / -1

    When copper pyrites are roasted in excess of air, a mixture of Cu2O+FeO is formed. FeO is present as impurities. This can be removed as slag during the reduction of Cu2O. The flux added to form slag is ___________.

  • Question 8
    4 / -1

    The equivalent conductance of \(\mathrm{Ba}^{2+}\) and \(\mathrm{Cl}^{-}\) are respectively 127 and \(76 \mathrm{ohm}^{-1}\)\(\mathrm{cm}^{2} \mathrm{eq}^{-1}\) at infinite dilution. What will be the equivalent conductance of \(\mathrm{BaCl}_{2}\) at infinite dilution?

  • Question 9
    4 / -1

    A covalent bond between two atoms may be broken in different ways depending upon ____________.

  • Question 10
    4 / -1

    In which among the following organic compound, carboxyl group is present?

  • Question 11
    4 / -1

    What is the percentage of oxygen in \(\mathrm{Al}_{2}\left(\mathrm{SO}_{4}\right)_{3} ?\)

  • Question 12
    4 / -1

    An ideal gas heat engine operates in Carnot's cycle between \(227^{\circ} \mathrm{C}\) and \(127^{\circ} \mathrm{C}\) It absorbs \(6 \times 10^{4} \mathrm{~J}\) at high temperature. The amount of heat converted into work is:

  • Question 13
    4 / -1

    A substance 'A' decomposes by a first order reaction starting initially with \([\mathrm{A}]=\) \(2.00 \mathrm{M}\) and after \(200 \mathrm{~min}[\mathrm{~A}]=0.15 \mathrm{M}\). For this reaction what is the value of \(\mathrm{k}\)?

  • Question 14
    4 / -1

    Fr87 and Ra88, two radioactive elements belong to which of the following block of modern table ?

  • Question 15
    4 / -1

    For the same alkyl group, the boiling point of alkyl halides decrease in the order:

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