JEE Main 2021 (Online) 31st August Morning Shift | d and f Block Elements Question 40 | Chemistry

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JEE Main 2021 (Online) 31st August Morning Shift

MCQ (Single Correct Answer)

-1

In the structure of the dichromate ion, there is a :

linear symmetrical Cr-O-Cr bond.

non-linear symmetrical Cr-O-Cr bond.

linear unsymmetrical Cr-O-Cr bond.

non-linear unsymmetrical Cr-O-Cr bond.

JEE Main 2021 (Online) 25th July Evening Shift

MCQ (Single Correct Answer)

-1

Which one of the following metals forms interstitial hydride easily?

JEE Main 2021 (Online) 25th July Morning Shift

MCQ (Single Correct Answer)

-1

The correct order of following 3d metal oxides, according to their oxidation numbers is :

(a) CrO₃, (b) Fe₂O₃, (c) MnO₂, (d) V₂O₅, (e) Cu₂O

(d) > (a) > (b) > (c) > (e)

(a) > (c) > (d) > (b) > (e)

(a) > (d) > (c) > (b) > (e)

JEE Main 2021 (Online) 20th July Evening Shift

MCQ (Single Correct Answer)

-1

Cu²⁺ salt reacts with potassium iodide to give

Cu₂I₂

Cu₂I₃

Cul

Cu(I₃)₂

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