Hg²+ Flashcards
1
Q
Is Hg²+ soluble in aqua regia?
A
YES
2
Q
Hg²+ HNO3 + HCl
A
HgCl2 + S (white ppt) + NO(gas) + water
3
Q
Hg²+ + KI mention colour too
A
HgI2(red)
4
Q
HgI2 + excess KI mention colour too
A
[HgI4]²- (colourless)
5
Q
Hg²+ + SnCl2
A
Hg(ppt) + SnCl4
6
Q
Hg²+ Co(SCN)2 mention colour too
A
Co[Hg(SCN)4] (deep blue)
7
Q
Hg²+ NaOH mention colour and whether the colour might change?
A
HgO(reddisih brown ppt), the colour changes to yellow depending on stoichiometric quantities
8
Q
Is HgO soluble in excess NaOH?
A
No but its soluble in acid
9
Q
Hg²+ + NO3- + NH3 mention colour too
A
HgO.[Hg(NH3)(NO3)] (white)
10
Q
Can Hg²+ or Hg2²+ form ppt with aq NH3
A
No
