JEE Advanced 2015 Paper 2 Offline | d and f Block Elements Question 15 | Chemistry

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

JEE Advanced 2014 Paper 1 Offline

MCQ (More than One Correct Answer)

-0

The pair(s) of reagents that yield paramagnetic species is/are

Na and excess of NH₃

K and excess of O₂

Cu and dilute HNO₃

O₂ and 2-ethylanthraquinol

JEE Advanced Subjects