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Chemistry Test ...

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  • Question 1
    1 / -0

    Inhaling _________ in large amounts can cause pulmonary edema.

  • Question 2
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    Roasting of sulphides gives the gas \(\mathrm{X}\)as a by-product. This is a colourless gas with choking smell of burnt sulphur and causes great damage to respiratory organs as a result of acid rain. Its aqueous solution is acidic acts as a reducing agent and its acid has never been isolated. The gas \(\mathrm{X}\) is:

  • Question 3
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    Data given for the following reaction is as follows.

    \(\mathrm{FeO}(\mathrm{s})+\mathrm{C}_{\text {(graphite) }} \rightarrow \mathrm{Fe}(\mathrm{s})+\mathrm{CO}(\mathrm{g})\)

    Substance  \(\Delta \mathbf{H}^{\circ}\left(\mathbf{k J ~ m o l}^{-1}\right)\)  \(\Delta \mathbf{S}^{\circ}\left(\mathbf{J ~ m o l}^{-1} \mathbf{K}^{-\mathbf{1}}\right)\)
    FeO(s)  -266.3 57.49 
    \(\mathrm{C}_{\text {(graphite) }}\) 0 5.74 
    Fe(s)  0 27.28 
    CO(g)  -110.5 197.6 
    The minimum temperature in K at which the reaction becomes spontaneous is......... (Integer answer)

  • Question 4
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    Amorphous solids are:

  • Question 5
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    If we have an element with atomic number 115, then which of the following statements is correct about this element?

  • Question 6
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    The structure given below is known as:

  • Question 7
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    For which of the following mixture of gases, Dalton's law of partial pressure is not applicable at room temperature?

  • Question 8
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    Which of the following antibiotics is used to cure typhoid?

  • Question 9
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    Sodium burns in dry air to ordinarily give:

  • Question 10
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    The isotope of hydrogen, \(D _{2}\) forms heavy water, \(D _{2} O\). It is qualified as \(D _{2} O\) because it is:

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