EASY
12th ICSE
IMPORTANT
Earn 100

Draw the structure of manganate and permanganate ion.

Important Questions on d-and f-Block Elements

EASY
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 8 - d-and f-Block Elements>Chapter Practice>Q 15
In chromic acid CrO3, Cr has d0 configuration but it is bright orange coloured solid, why?
EASY
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 8 - d-and f-Block Elements>Chapter Practice>Q 17
Why there is striking similarities (horizontal and vertical) among successive members of the transition series?
EASY
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 8 - d-and f-Block Elements>Chapter Practice>Q 18
Why Cu+ salts are colourless, while Cu2+ salts are coloured?
EASY
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 8 - d-and f-Block Elements>Chapter Practice>Q 19
Chromium is a typically hard metal while mercury is a liquid. Why?
EASY
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 8 - d-and f-Block Elements>Chapter Practice>Q 20
What happens, when KMnO4 is heated?
EASY
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 8 - d-and f-Block Elements>Chapter Practice>Q 20
What happens when K2Cr2O7 is heated?
EASY
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 8 - d-and f-Block Elements>Chapter Practice>Q 21
Why fluorine stabilises the low oxidation states of transition metals?
EASY
12th ICSE
IMPORTANT
All In One ISC Chemistry Class 12>Chapter 8 - d-and f-Block Elements>Chapter Practice>Q 22
Complete the following reaction: MnO4-+S2-+H+ →