PYQ Vault

Day 351: MHT-CET Chemistry

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

  1. Question 1

    Amines. Asked once: 11 May 2023 S2 (same type asked 4 times) See all 4 of this type

    81
    Identify the product 'A' obtained in following reaction. N-alkyl phthalimide →NaOH(aq)\xrightarrow{\text{NaOH(aq)}} Sodium phthalate + A

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  2. Question 2

    Green Chemistry and Nanochemistry. Asked once: 13 Apr 2026 S1 (same type asked 4 times) See all 4 of this type

    50
    Identify the use of antipyretic drugs.

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  3. Question 3

    Electrochemistry. Asked once: 10 May 2023 S1 (same type asked 4 times) See all 4 of this type

    100
    Which of the following substances conducts electricity?

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  4. Question 4

    Amines. Asked once: 2 May 2023 S1 (same type asked 4 times) See all 4 of this type

    62
    How many moles of iodomethane are consumed in the following conversion? CH3NH2→CH3I(CH3)4N+I−\text{CH}_3\text{NH}_2 \xrightarrow{\text{CH}_3\text{I}} (\text{CH}_3)_4\text{N}^+\text{I}^-

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  5. Question 5

    Chemical Thermodynamics and Energetics. Asked once: 16 May 2023 S2 (same type asked 4 times) See all 4 of this type

    62
    Calculate standard internal energy change for OF2(g)+H2O(g)→2HF(g)+O2(g)\text{OF}_2(g) + \text{H}_2\text{O}(g) \rightarrow 2\text{HF}(g) + \text{O}_2(g) at 300 K, if ΔfH∘\Delta_f H^\circ of OF2(g)\text{OF}_2(g), H2O(g)\text{H}_2\text{O}(g) and HF(g)\text{HF}(g) are 20,−25020, -250 and −270-270 kJ mol−1^{-1} respectively. R=8.314R = 8.314 J K−1^{-1} mol−1^{-1}

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