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Which of the four test tubes containing ...

Which of the four test tubes containing the following chemicals shows the brisk effervescence when dilute acetic acid was added to them?
i) KOH
ii) `NaHCO_3`
iii) `K_2 CO_3`
vi) `NaCl`

A

I & ii

B

ii & iii

C

i & iv

D

ii & iii

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Knowledge Check

  • Which of the following compounds would not evolve CO_2 when treated with aq. NaHCO_3 solution?

    A
    Phenol
    B
    Benzoic acid
    C
    2,4- Dinitrophenol
    D
    2,4,6-Trinitrophenol

  • Which of the following compounds would not evolve CO_(2) when treated with aq. NaHCO_(3) solution?

    A
    Phenol
    B
    Benzoic acid
    C
    2,4- Dinitrophenol
    D
    2,4,6-Trinitrophenol

  • Which of the following can act both as Bronsted acid and Bronsted base? (i) HCO_(3)^(-) (ii) NH_(3) (iii) O^(2-) (iv) HCl

    A
    (i) and (ii)
    B
    (ii) and (iii)
    C
    None of the above
    D
    All of the above

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