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JEE Main Hydrogen and s-Block Elements questions

13 Chemistry questions on Hydrogen and s-Block Elements as asked in JEE Main, newest first. 12 come with a worked solution.

  1. Identify the correct statements about alkali metals. A. The order of standard reduction potential (M^+ | M) for alkali metal ions is Na > Rb > Li. B. CsI is highly soluble in water. C. Lithium carbonate is highly stable…

    2023 · with solution

  2. The correct order of hydration enthalpies is (A) K^+ (B) Rb^+ (C) Mg^2+ (D) Ca^+ (E) Ca^2+ Choose the correct answer from the options given below:

    2023 · with solution

  3. In which of the following reactions the hydrogen peroxide acts as a reducing agent?

    2023 · with solution

  4. Match List I with List II | LIST I (Elements) | LIST II (Colour imparted to the flame) | |---|---| | A. K | I. Brick Red | | B. Ca | II. Violet | | C. Sr | III. Apple Green | | D. Ba | IV. Crimson Red | Choose the…

    2023 · with solution

  5. Match List I with List II | LIST I | LIST II | |---|---| | A. Cobalt catalyst | I. (H_2 + Cl_2) production | | B. Syngas | II. Water gas production | | C. Nickel catalyst | III. Coal gasification | | D. Brine solution |…

    2023 · with solution

  6. Reaction of BeO with ammonia and hydrogen fluoride gives A which on thermal decomposition gives BeF_2 and NH_4F. What is 'A' ?

    2023 · with solution

  7. Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R Assertion A: The alkali metals and their salts impart characteristic colour to reducing flame. Reason R: Alkali metals…

    2023 · with solution

  8. Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Beryllium has less negative value of reduction potential compared to the other alkaline earth metals.…

    2023 · with solution

  9. Match List I with List II | LIST I | LIST II | |---|---| | A. Chlorophyll | I. Na_2CO_3 | | B. Soda ash | II. CaSO_4 | | C. Dentistry, Ornamental work | III. Mg^2+ | | D. Used in white washing | IV. Ca(OH)_2 | Choose…

    2023 · with solution

  10. The magnetic behavior of Li_2O, Na_2O_2 and KO_2, respectively, are

    2023 · with solution

  11. Decreasing order of the hydrogen bonding in following forms of water is correctly represented by A. Liquid water B. Ice C. Impure water Choose the correct answer from the options given below:

    2023 · with solution

  12. Which of the given compounds can enhance the efficiency of hydrogen storage tank?

    2023 · with solution

  13. From the following statements regarding H_2O_2 choose the incorrect statement.

    2015

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