Chemistry-(general)
NEET Chemistry (general) Match the Following Question
Type: Match the Following-match the column-Medium-Class 12
Match Column-I with Column-II.
| Column-I | Column-II |
|---|---|
| (a) Carbonate ion | (i) Formation of blue color with starch |
| (b) Sulphide ion | (ii) Effervescence with a colorless gas |
| (c) Nitrite ion | (iii) Smell of rotten eggs |
| (d) Zinc ion | (iv) Formation of a white precipitate |
A
a-ii, b-iii, c-i, d-iv
B
a-i, b-ii, c-iii, d-iv
C
a-ii, b-i, c-iv, d-iii
D
a-iv, b-ii, c-iii, d-i
Correct Answer
Option A
Detailed Explanation
The carbonate ion (CO3^2-) is indicated by effervescence and the evolution of CO2 gas, while the sulphide ion (S^2-) is confirmed by the rotten egg smell of hydrogen sulfide gas. The nitrite ion (NO2^-) produces a blue color with starch and iodide, and the zinc ion (Zn^2+) forms a white precipitate. This matches with the respective tests described in the NCERT context.
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