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Day 78: MHT-CET Chemistry

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

  1. Question 1

    Alcohols, Phenols and Ethers. Asked 3 times: 12 May 2024 S1*, 26 Apr 2025 S2*, 12 May 2026 S2 (* = numbers or wording changed that year) See all 3 times it was asked

    40
    Identify the product formed when aryl-alkyl ether reacts with cold HI.

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  2. Question 2

    Structure of Atom. Asked 3 times: 10 May 2023 S2*, 15 May 2023 S2*, 12 May 2026 S2 (* = numbers or wording changed that year) See all 3 times it was asked

    2
    Identify the orbital having quantum numbers, n=4n = 4 and l=2l = 2 from following.

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  3. Question 3

    Aldehydes, Ketones and Carboxylic Acids. Asked 3 times: May 2021 S1, 16 May 2023 S2, 12 May 2026 S1 See all 3 times it was asked

    40
    C=O+4[H]→ΔZn−Hg, conc. HCl−CH2+H2O\mathrm{C = O + 4[H] \xrightarrow[\Delta]{Zn{-}Hg,\ conc.\ HCl} {-}CH_2 + H_2O} (Carbonyl group in aldehydes and ketones) (Methylene group) Identify the name of above reaction.

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  4. Question 4

    Electrochemistry. Asked 3 times: 20 Apr 2025 S1*, 23 Apr 2025 S1*, 12 May 2026 S1 (* = numbers or wording changed that year) See all 3 times it was asked

    25
    The standard electrode potential for Ag(aq)++e−→Ag(s)\mathrm{Ag^+_{(aq)} + e^- \rightarrow Ag_{(s)}} is 0.790.79 V. What is the stranded potential for the reaction: 2Ag(s)→2Ag(aq)++2e−\mathrm{2Ag_{(s)} \rightarrow 2Ag^+_{(aq)} + 2e^-}.

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  5. Question 5

    Chemical Kinetics. Asked 3 times: 20 Apr 2025 S2, 26 Apr 2025 S1, 20 Apr 2026 S2 See all 3 times it was asked

    30
    What is the order and molecularity of the following elementary reaction? 2NO2(g)→2NO(g)+O2(g)\mathrm{2NO_{2(g)} \rightarrow 2NO_{(g)} + O_{2(g)}}, rate =k×[NO2]2= k \times [\mathrm{NO_2}]^2

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