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Chemistry Test ...

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  • Question 1
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    By the presence of a halogen atom in the ring, what is the effect of this on basic properties of aniline?

  • Question 2
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  • Question 3
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    The solubility of \(\mathrm{BaSO}_{4}\) in water is \(2.42 \times 10^{-3} \mathrm{gL}^{-1}\) at \(298 \mathrm{~K}\). The value of its solubility product \(\left(\mathrm{K}_{\mathrm{sp}}\right)\) will be

  • Question 4
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    If a rocket runs on a fuel \(\left(\mathrm{C}_{15} \mathrm{H}_{30}\right)\) and liquid oxygen, the weight of oxygen required and \(\mathrm{CO}_2\) released for every litre of fuel respectively are :

    (Given : density of the fuel is \(0.756 \mathrm{~g} / \mathrm{mL}\) )

  • Question 5
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    Find out the major product for the above reaction.

  • Question 6
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    Aniline is less basic than _______.

  • Question 7
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    Calculate molality of \(2.5 \mathrm{~g}\) of ethanoic acid \(\left(\mathrm{CH}_{3} \mathrm{COOH}\right)\) in \(75 \mathrm{~g}\) of benzene.

  • Question 8
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    Which of the following will not produce hydrogen gas?

  • Question 9
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    A \(100\) watt bulb emits monochromatic light of wavelength \(400 \mathrm{~nm}\). Calculate the number of photons emitted per second by the bulb.

  • Question 10
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    Match List I with List II:

      List I   List II
     Coke (I)   Carbon atoms are sp3 hybridised
     B  Diamond (II)   Used as a dry lubricant
     C  Fullerene (III)   Used as a reducing agent
     d  Graphite (IV)  Cage like molecules 
    Choose the correct answer from the options given below:

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