Which statement(s) is /are correct about Brown ring test ?

Which statement(s) is /are correct about Brown ring test ?
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Which statement(s) is /are correct about Brown ring test ? A. This test is given by `NO_(2)^(-) , ... D. Charge on NO in brown ring complex is `+1`.
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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 solut

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The brown ring test for `NO_(2)^(-)` and `NO_(3)^(-)` is due to the formation of complex ion with formula `:`

Description : The brown ring test for `NO_(2)^(-)` and `NO_(3)^(-)` is due to the formation of complex ion with formula `:`

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

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

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Nitrate is confirmed by ring test. The brown colour of the ring is due to formation of

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Nitrate & Nitrite both give brown ring test, can be distinguish by -

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Which of the following is not a correct statement about the electrophilic substitution mechanism of benzene? (a) Benzene functions as a nucleophile. (b) Formation of a carbocation intermediate is the rate-determining step. (c) The carbocation intermediate contains an sp3 hybridized carbon in the ring. (d) The addition product is a frequently observed minor product.

Description : Which of the following is not a correct statement about the electrophilic substitution mechanism of benzene? (a) Benzene functions as a nucleophile. (b) Formation of a carbocation intermediate is the ... hybridized carbon in the ring. (d) The addition product is a frequently observed minor product.

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Pick out the correct statement. (A) The slope of the stripping line is always less than unity (B) For a given separation in a binary distillation column, with increase in reflux ratio (above the minimum reflux ratio), the fixed cost of the distillation column first increases and then decreases (C) In Ponchon-Savarit method of no. of theoretical plate determination, the stripping and rectifying operating lines are vertical at total reflux (D) Kremser-Brown-Souder's equation is used to calculate the efficiency of a plate tower

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