1

JEE Main 2022 (Online) 27th June Morning Shift

Numerical

+4

-1

The number of statements correct from the following for Copper (at. no. 29) is/are ____________.

(A) Cu(II) complexes are always paramagnetic.

(B) Cu(I) complexes are generally colourless

(C) Cu(I) is easily oxidized

(D) In Fehling solution, the active reagent has Cu(I)

Your input ____

2

JEE Main 2022 (Online) 26th June Morning Shift

Numerical

+4

-1

The spin-only magnetic moment value of the most basic oxide of vanadium among V_{2}O_{3}, V_{2}O_{4} and V_{2}O_{5} is _____________ B.M. (Nearest integer)

Your input ____

3

JEE Main 2022 (Online) 24th June Evening Shift

Numerical

+4

-1

Manganese (VI) has ability to disproportionate in acidic solution. The difference in oxidation states of two ions it forms in acidic solution is ____________.

Your input ____

4

JEE Main 2021 (Online) 31st August Morning Shift

Numerical

+4

-1

The number of halogen/(s) forming halic (V) acid is ___________.

Your input ____

Questions Asked from d and f Block Elements (Numerical)

Number in Brackets after Paper Indicates
No. of Questions

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