Brown ring test for nitrate is unreliable in presence of (A) `Cl^(-)` (B) `F^(-)` (C) `Br^-` (D) `SO_(4)^(2-)`

In brown ring test for nitrate ions, brown ring is formed due to complex

In brown ring test for nitrate ions, brown ring is formed due to complex

Reaction of trans-2-butene with Br_2 in presence of C Cl_4 gives

Give a test to detect the presence of SO2 gas?

The strongest conjugate base is (a) NO_(3)^(-) (b) Cl^(-) (c) SO_(4)^(2-) (d) CH_(3)COO^(-)

The brown compound formed in the ring test for nitrates contains the ion

The comple [Fe(H_(2)O)_(6)NO]^(2+) is formed in the brown ring test fro nitrates when freshly prepared FesO_(4) solution is added to aqueous solution of NO_(3)^(-) ions followed by addition of conc. H_(2)SO_(4) . Select correct statement about this complex.

Give the characteristic tests for the following gases. (a) CO_(2)" "(b) SO_(2) (c) O_(2)" "(d) H_(2)

The increasing order of the atomic radii of the following elements is : (a) C (b) O(c) F(d) ( e) Br

An inorganic Compound (A) has garnet red prismatic crystals. (A) is modertely soluble in water and dissolved in cold concentrated H_(2)SO_(4) to yield red crystal (B) . In presence of dilute H_(2)SO_(4) it converts a pungent gas (C ) into yellow turbidity (D) and converts a Suffocating gas (E) into a green solution (F). the gas (C ) and (E) also combine to produced the yellow turbidity (D) . With KI and starch in presence of dilute. H_(2)SO_(4) (A) and concentrated H_(2)SO_(4) Mixture used as a cleansing agent for glassware in the laboratory . identify (A) and explain the reactions.