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Day 202: MHT-CET Chemistry

5 questions. Try each one first, then open its answer.

  1. Question 1

    Chemical Kinetics. Asked once: 20 Apr 2025 S1 (same type asked 6 times) See all 6 of this type

    54
    The rate constant for a first order reaction is 0.58 s−10.58{\text{ }s}^{- 1} at 300 K and 0.026 s−10.026{\text{ }s}^{- 1} at 290 K . What is the energy of activation? ( R=8.314 J K−1 mol−1R = 8.314\text{ }J{\text{ }K}^{- 1}{\text{ }mol}^{- 1} )

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  2. Question 2

    Biomolecules. Asked once: 19 Apr 2026 S1 (same type asked 6 times) See all 6 of this type

    46
    Which from following compounds is classified as oligosaccharide?

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  3. Question 3

    Alcohols, Phenols and Ethers. Asked once: 13 May 2026 S2 (same type asked 6 times) See all 6 of this type

    39
    What is the final product of the oxidation reaction of a primary alcohol by acidified K2Cr2O7\mathrm{K_2Cr_2O_7}?

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  4. Question 4

    Chemical Kinetics. Asked once: 21 Apr 2025 S1 (same type asked 6 times) See all 6 of this type

    57
    What is the order and molecularity respectively for the elementary reaction given below? O3( g)+O(g)⟶2O2( g)O_{3(\text{ }g)}+O_{(g)}\longrightarrow 2O_{2(\text{ }g)} if r=k[O3][O]r = k\left\lbrack O_{3} \right\rbrack\lbrack O\rbrack

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  5. Question 5

    Chemical Thermodynamics and Energetics. Asked once: 15 May 2026 S1 (same type asked 6 times) See all 6 of this type

    7
    Which of the following processes uses the total heat absorbed by system to perform work on the surrounding?

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