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Chemistry-General

  1.    
  2. None of these    
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    Answer:The correct answer is:

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    Aniline reacts with mixed acid (conc. HNO3 and conc. H2SO4 ) at 288 K to give P (51%), Q (47%) and R (51%), Q(47%) and R (2%). The major product(s) of the following reaction sequence is/are

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    The major product of the following reaction is

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    In the following reaction sequences V and W are respectively :

    In the following reaction sequences V and W are respectively :

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    GivenC left parenthesis s right parenthesis plus O subscript 2 end subscript left parenthesis g right parenthesis C O subscript 2 end subscript left parenthesis g right parenthesis plus 94.2Kcal H subscript 2 end subscript left parenthesis g right parenthesis plus 1 divided by 2 O subscript 2 end subscript left parenthesis g right parenthesis rightwards arrow stack H subscript 2 end subscript O with _ below left parenthesis l right parenthesis plus 68.3Kcal C H subscript 4 end subscript left parenthesis g right parenthesis plus 2 O subscript 2 end subscript left parenthesis g right parenthesis times C O subscript 2 end subscript left parenthesis g right parenthesis plus 2 stack stack H with _ below subscript 2 end subscript O with _ below left parenthesis l right parenthesis plus 210.8Kcal thheaoformatioomethane in Kcawilbe-

    GivenC left parenthesis s right parenthesis plus O subscript 2 end subscript left parenthesis g right parenthesis C O subscript 2 end subscript left parenthesis g right parenthesis plus 94.2Kcal H subscript 2 end subscript left parenthesis g right parenthesis plus 1 divided by 2 O subscript 2 end subscript left parenthesis g right parenthesis rightwards arrow stack H subscript 2 end subscript O with _ below left parenthesis l right parenthesis plus 68.3Kcal C H subscript 4 end subscript left parenthesis g right parenthesis plus 2 O subscript 2 end subscript left parenthesis g right parenthesis times C O subscript 2 end subscript left parenthesis g right parenthesis plus 2 stack stack H with _ below subscript 2 end subscript O with _ below left parenthesis l right parenthesis plus 210.8Kcal thheaoformatioomethane in Kcawilbe-

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    A set of (2n + 1) elements is given. The no. of subsets of the set which contain atmost n elements -

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    = 2n+1C0 + 2n+1C1 + 2n+1C2 +...........+ 2n+1Cn = N
    (let) We have 2N = 2n+1C0 + 2n+1C1 .................2n+1C2n +1
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      under Hofmann conditions will give :

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    i) 
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