1
JEE Main 2022 (Online) 25th July Morning Shift
Numerical
+4
-1
Change Language

Among Co3+, Ti2+, V2+ and Cr2+ ions, one if used as a reagent cannot liberate H2 from dilute mineral acid solution, its spin-only magnetic moment in gaseous state is ___________ B.M. (Nearest integer)

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2
JEE Main 2022 (Online) 29th June Evening Shift
Numerical
+4
-1
Change Language

For the reaction given below :

CoCl3 . x NH3 + AgNO3 (aq) $$\to$$

If two equivalents of AgCl precipitate out, then the value of x will be _____________.

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3
JEE Main 2022 (Online) 29th June Morning Shift
Numerical
+4
-1
Change Language

The number of terminal oxygen atoms present in the product B obtained from the following reaction is _____________.

FeCr2O4 + Na2CO3 + O2 $$\to$$ A + Fe2O3 + CO2

A + H+ $$\to$$ B + H2O + Na+

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4
JEE Main 2022 (Online) 29th June Morning Shift
Numerical
+4
-1
Change Language

An acidified manganate solution undergoes disproportionation reaction. The spin-only magnetic moment value of the product having manganese in higher oxidation state is _____________ B.M. (Nearest integer)

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