JEE Advanced 2016 Paper 1 Offline | d and f Block Elements Question 15 | Chemistry

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JEE Advanced 2016 Paper 1 Offline

MCQ (More than One Correct Answer)

-2

The reagent(s) that can selectively precipitate S^2- from a mixture of S^2- and SO₄^2- in aqueous solution is (are) :

CuCl₂

BaCl₂

Pb(OOCCH₃)₂

Na₂[Fe(CN)₅NO]

JEE Advanced 2015 Paper 2 Offline

MCQ (More than One Correct Answer)

-2

The pairs of ions where BOTH the ions are precipitated upon passing H₂S gas in presence of dilute HCl, is(are)

Ba²⁺, Zn²⁺

Bi³⁺, Fe³⁺

Cu²⁺, Pb²⁺

Hg²⁺, Bi³⁺

JEE Advanced 2015 Paper 1 Offline

MCQ (More than One Correct Answer)

-2

The correct statements about Cr²⁺ and Mn³⁺ is(are) (Atomic numbers of Cr = 24 and Mn = 25)

Cr²⁺ is a reducing agent.

Mn³⁺ is an oxidizing agent.

both Cr²⁺ and Mn³⁺ exhibit d⁴ electronic configuration.

when Cr²⁺ is used as a reducing agent, the chromium ion attains d⁵ electronic configuration.

JEE Advanced 2014 Paper 1 Offline

MCQ (More than One Correct Answer)

-0

Upon heating with Cu₂S, the reagent(s) that give copper metal is/are

CuFeS₂

CuO

Cu₂O

CuSO₄

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