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D and F Block Elements question

2019 · Shift 1 · Q2

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PYQ Library
JEE Advanced
Chemistry
D and F Block Elements
2019 · Shift 1 · Q2

D and F Block Elements question

2019 · Shift 1 · Q2

JEE AdvancedChemistryD and F Block ElementsMCQ+3 / −1

The green colour produced in the borax bead test of a chromium (III) salt is due to

A
$Cr_2O_3$
B
CrB
C
$Cr(BO_2)_3$
D
$Cr_2(B_4O_7)_3$

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