Home
Class 12
CHEMISTRY
Why in cobalt nitrate test for aluminium...

Why in cobalt nitrate test for aluminium salts, excess of cobalt nitrate should not be added ?

Text Solution

Verified by Experts

The correct Answer is:
This gives black cobalt oxide, `Co_(3)O_(4)`, upon ignition and this mask the colour of thernad blue `(CoAl_(2)O_(4))`.
Promotional Banner

Topper's Solved these Questions

  • QUALITATIVE ANALYSIS PART 1

    RESONANCE|Exercise EXERCISE 3|22 Videos

  • QUALITATIVE ANALYSIS PART 1

    RESONANCE|Exercise A.L.P|39 Videos

  • QUALITATIVE ANALYSIS PART 1

    RESONANCE|Exercise EXERCISE 1 PART 2 QUALITATIVE ANALYSIS|22 Videos

  • QUALITATIVE ANALYSIS (ANION)

    RESONANCE|Exercise Matching List Type|1 Videos

  • RANK BOOSTER

    RESONANCE|Exercise All Questions|620 Videos

Similar Questions

Explore conceptually related problems

Which of the following salt gives green colour mass in cobalt nitrate charcoal cavity test?

Cobalt- Chloride test is for demonstration of

A which solid gives a green residue on beingi subjected to the cobalt nitrate test.on being warmed with concentrated H_(2)SO_(4) , the solid gives a brown gas, which evolves vigorously on the addition of Cu turningsl. The solid may be: