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Day 442: MHT-CET Chemistry

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

  1. Question 1

    Biomolecules. Asked once: 15 Apr 2026 S2

    46
    Which of the following statements are correct? A) α\alpha - amino acids present in protein is L- amino acid. B) Amino acids contain NH2\mathrm{NH_2} as well as COOH group. C) Number of amino group and carboxylic group are same in amino acids always. D) Tryosine was firstly obtained from cheese. Choose the correct alternatives from below:

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  2. Question 2

    Chemical Bonding and Molecular Structure. Asked once: 4 May 2023 S1

    97
    What is the value of electronegativity of oxygen?

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  3. Question 3

    Chemical Kinetics. Asked once: 11 May 2023 S1

    72
    Initial concentration of reactant in a first order reaction is 0.080.08 mol dm−3^{-3}. What concentration would remain after 40 minute? Given [A]0[A]t=5.00\frac{[A]_0}{[A]_t} = 5.00

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  4. Question 4

    Chemical Thermodynamics and Energetics. Asked once: 22 Apr 2025 S2

    76
    Calculate the enthalpy of solution of potassium chloride if its ΔLH=700 kJ mol−1\Delta_{L}H = 700\text{ }kJ{\text{ }mol}^{- 1} and Δhyd H=−680 kJ mol−1\Delta_{\text{hyd~}}H = - 680\text{ }kJ{\text{ }mol}^{- 1}

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  5. Question 5

    Elements of Group 1 and 2. Asked once: 25 Apr 2025 S1

    65
    Which pair of elements from following is used to make alloy for trophies?

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