The first list below contains the formula of a hydride. Each has a ‘partner’ in the second list of phrases. Match the ‘partners’; there is only one match for each pair. Structural descriptions refer to the solid state.
List 1 | List 2 |
BeH2 | 3D lattice with octahedral metal centres |
[PtH4]2“ | Non-stoichiometric hydride |
NaH | M(0) complex |
LNiH4]4- | Polymeric chain |
fPtH612- | M(IV) complex |
[TcHgJ2- | Tricapped trigonal prismatic hydrido complex |
HfHn | Square planar complex |
A1H3 | Saline hydride |
Suggest explanations for the following observations
(a) Ammonium fluoride forms solid solutions with ice.
(b) The viscosity decreases along the series of Liquids H3po4 > H2so4 > I-HCIO4.
(c) Formic (methanoic) acid has a Trouton constant of 60.7 JK1 mol-1.
(d) pKa values for fumaric acid and its geometrical isomer maleic acid are:
Ptfa(l)
P*a(2)
Fumaric acid
3.O2
4.38
Maleic acid
1.92
6.23
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