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Chemistry Test ...

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  • Question 1
    4 / -1

    Select the incorrect statement among following:

  • Question 2
    4 / -1

    Li +   → (P)

    (Q) + 2H2O → Ca(OH)2 + 2H2

    2NaBH4 + I2 → (R) + 2NaI + H2

    If equal masses of (P), (Q) and (R) treated with water, which will give more amount of H2 ?

  • Question 3
    4 / -1

    Directions For Questions

    The element Sulphur exists in many allotropes and each allotrope often exists in polymorphs having different crystal parameters i.e., axial lengths and angles (a, b, c, α, β, γ). Then consider the reaction for different crystal of Sulphur  :

    (i) S(a ≠ b ≠ c, α = β = γ = 90°)  +  → SO3(g),    ΔH1
    (ii) S(a ≠ b ≠ c, α = γ, β ≠ 90°) +   → SO3(g),  ΔH2

    (iii) S(a ≠ b ≠ c, α = β = γ = 90°) + O3(g)  → SO3(g),    ΔH3

    (iv) S(a ≠ b ≠ c, α = γ, β ≠ 90°) + O3(g)  → SO3(g),   ΔH4

    ...view full instructions

     

    Select incorrect option (only magnitude comparision).

  • Question 4
    4 / -1

    Which of the following is INCORRECT order for boiling points for unknowns (P), (Q), (R), (S), (T), (U) & (V). In the reaction sequence:

  • Question 5
    4 / -1

    Directions For Questions

    CF3I + NaOH → A + B

    ...view full instructions

    Find the correct statement.

  • Question 6
    4 / -1

    Moles of  CO2 evolved during given reaction per mol?

  • Question 7
    4 / -1

    Which of the following compound is most harmful component of phtochemical smog?

  • Question 8
    4 / -1

    Some aqueous solutions are given below. Find the solution whose pH changes maximum by adding 10  millimoles amount of pure H2SO4. 

  • Question 9
    4 / -1

    For a 3s–orbital. Find the maximum distance for radial node.

  • Question 10
    4 / -1

    Packing fraction of NaCl unit cell [assuming ideal] if ions along one of its body diagonal are absent (Cl– forms FCC, r+ & r– are radius of cation and anion)

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