Match the following columns

Column 1 Column 2

Brown ring test

$F e S O_{4} . N O$

Brown ring

$N O_{3}^{-}$

Brown ring interfere

$N O_{2}^{-} l^{-}$

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Solution

(i) Brown ring test matches with (b) $N O_{3}^{-}$
Explanation:
Brown ring test: It is a chemical test to detect the presence of nitrate $N O_{3}^{-}$ ions in a given sample. This test is also known as the nitrate test.
(ii) Brown ring the answer is (a) $F e S O_{4} . N O$
Explanation:
Brown ring: This ring is formed at the junction of Ferrous sulphate and Sulphuric acid. The chemical name of this ring is Nitroso ferrous sulphate. And the chemical formula of the Brown ring is $F e S O_{4} . N O$ .
(iii) Brown ring interferes the answer is (c) $N O_{2}^{-} l^{-}$
Explanation:
Brown ring interfere: In Brown ring test the presence of Nitrite ion $N O_{2}^{-}$ will interfere.
Hence, the answers are below:
Column I Column II
(i)Brown ring test (b) $N O_{3}^{-}$
(ii) Brown ring (a) $F e S O_{4} . N O$
(iii) Brown ring interfere (c) $N O_{2}^{-} l^{-}$

Suggest Corrections

Column 1	Column 2
Contraction	Increasing the size of substance
Evaporation	Conversion of solid into liquid
Expansion	Raising the temperature of substance
Melting	Decreasing the size of substance
Heating	Changing of liquid into gaseous form