NEET Sample Paper NEET Sample Test Paper-9

  • question_answer
    Which of the following is not true?                 

    A)  Pheromones are secreted outside the body by the insects.

    B)  Aspirin is analgesic and anti-pyretic               

    C)  Sucrose is a dipeptide commonly known as aspartase                                      

    D)  The DNA assists in the synthesis of RNA molecules.

    Correct Answer: C

    Solution :

    Sucrose, \[{{C}_{12}}{{H}_{22}}{{O}_{11}}\] on hydrolysis gives glucose and fructose i.e. two monosaccharides hence it is a disaccharide. \[\underset{sucrose}{\mathop{{{C}_{12}}{{H}_{22}}{{O}_{11}}}}\,+{{H}_{2}}O\xrightarrow{{}}\underset{\text{glucose}}{\mathop{{{C}_{6}}{{H}_{12}}{{O}_{6}}}}\,+\underset{frutose}{\mathop{{{C}_{6}}{{H}_{12}}{{O}_{6}}}}\,\]

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