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Day 138: MHT-CET Chemistry

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

  1. Question 1

    Alkenes. Asked 2 times: 16 May 2023 S1, 26 Apr 2025 S2 See all 2 times it was asked

    71
    What is the product obtained when alkene is reacted with cold and dilute alkaline potassium permanganate?

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  2. Question 2

    Chemical Thermodynamics and Energetics. Asked 2 times: 22 Apr 2025 S1*, 26 Apr 2025 S2 (* = numbers or wording changed that year) See all 2 times it was asked

    75
    Calculate the standard enthalpy change of following reaction.
    CH4( g)+2O2( g)→CO2( g)+2H2O(l)CH_{4(\text{ }g)}+ 2O_{2(\text{ }g)}\rightarrow CO_{2(\text{ }g)}+ 2H_{2}O_{(\mathcal{l})}
    if ΔtH∘(CH4)=−75 kJ mol−1\Delta_{t}H^{\circ}\left( CH_{4} \right)= - 75\text{ }kJ{\text{ }mol}^{- 1}
    ΔtH∘(CO2)=−390 kJ mol−1ΔrH∘(H2O)=−286 kJ mol−1\begin{gathered}\Delta_{t}H^{\circ}\left( CO_{2} \right)= - 390\text{ }kJ{\text{ }mol}^{- 1} \\ \Delta_{r}H^{\circ}\left( H_{2}O \right)= - 286\text{ }kJ{\text{ }mol}^{- 1}\end{gathered}

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  3. Question 3

    Coordination Compounds. Asked 2 times: 11 May 2024 S1, 26 Apr 2025 S2 See all 2 times it was asked

    99
    Identify neutral complex from following.

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  4. Question 4

    Modern Periodic Table. Asked 2 times: 9 May 2023 S1, 26 Apr 2025 S2 See all 2 times it was asked

    70
    Which of the following elements has highest electronegativity?

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  5. Question 5

    Aldehydes, Ketones and Carboxylic Acids. Asked 2 times: 15 May 2023 S1*, 26 Apr 2025 S2 (* = numbers or wording changed that year) See all 2 times it was asked

    95
    Identify the product formed in the following reaction. CH3CH2MgBr→ ii) dil. HCl  i) Dry ice/ dry ether CH_{3}CH_{2}MgBr\xrightarrow[\text{~ii) dil. HCl~}]{\text{~i) Dry ice/ dry ether~}} Product

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