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

IIT-JEE 2012 Paper 2 Offline

MCQ (More than One Correct Answer)

-2

For the given aqueous reactions, which of the statement(s) is(are) true?

IIT-JEE 2012 Paper 2 Offline Chemistry - d and f Block Elements Question 6 English

The first reaction is a redox reaction.

White precipitate is Zn₃[Fe(CN)₆]₂.

Addition of filtrate to starch solution gives blue colour.

White precipitate is soluble in NaOH solution.

JEE Advanced Subjects