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P Block Elements question

2024 · Q141
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P Block Elements question

2024 · Q141

NEETChemistryP Block ElementsMCQ+4 / −1

Match List I with List II:

List - I
Solid salt treated with dil. H2_22​SO4_44​		 List - II
Anion detected
(A) effervescence of colourless gas (I) NO2−_2^-2−​
(B) gas with smell of rotten egg (II) CO32−_3^{2-}32−​
(C) gas with pungent smell (III) S2−^{2-}2−
(D) brown fumes (IV) SO32−_3^{2-}32−​

Choose the correct answer from the options given below:

  1. A
    A-II, B-III, C-IV, D-I
  2. B
    A-IV, B-III, C-II, D-I
  3. C
    A-I, B-II, C-III, D-IV
  4. D
    A-II, B-III, C-I, D-IV
View written solutionFree

Correct answer: A

Anion $\quad-$ Observation on treatment with dil. $$\mathrm{H}_2 \mathrm{SO}_4$$

(A) Carbonate $$\left(\mathrm{CO}_3^{2-}\right)\quad$$ Brisk effervescence of colourless and odourless gas $$\left(\mathrm{CO}_2\right)$$

(B) Sulphide $$\left(\mathrm{S}^{2-}\right)\quad$$ Evolution of colourless gas with rotten egg like smell $$\left(\mathrm{H}_2 \mathrm{~S}\right)$$

(C) Sulphite $$\left(\mathrm{SO}_3^{2-}\right)\quad$$ Gas with pungent smell $$\left(\mathrm{SO}_2\right)$$

(D) Nitrite $$\left(\mathrm{NO}_2^{-}\right)\quad$$ Brown fumes $$\left(\mathrm{NO}_2\right)$$

Correct Match : A – II, B-III, C-IV, D-I

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