Platinum, palladium and iridium are called noble metals because
Platinum, palladium and iridium are called noble metals because Options (a) Alfred Noble discovered them (b) they are shining lustrous…
Platinum, palladium and iridium are called noble metals because Options (a) Alfred Noble discovered them (b) they are shining lustrous…
In Cu-ammonia complex, the state of hybridization of Cu²⁺ is Options (a) sp³ (b) d³ (c) sp²f (d) dsp² Correct…
Chinese white is Options (a) ZnO (b) ZnCO₃ (c) ZnS (d) ZnS + BaSO₄ Correct Answer: ZnOExplanation:No explanation available. Be…
Reaction of solid KMnO₄ with conc.H₂SO₄ produces manganese heptoxide (Mn₂O₇) in Options (a) solution state (b) solid state (c) fine…
The amphoteric oxide is Options (a) Mn₂O₇ (b) MnO (c) MnO₂ (d) Mn₂O₃ Correct Answer: MnO₂Explanation:(i) Oxides in lower oxidation…
A yellow metal sulphide is Options (a) CuS (b) NiS (c) CdS (d) ZnS Correct Answer: CdS Explanation: The colour…
Which is not the property transition elements Options (a) Coloured salts (b) Variable valency (c) Fixed valency (d) coordinate complex…
Oxidation number of chromium in Na₂Cr₂O₇ is Options (a) 2 (b) 4 (c) 3 (d) 6 Correct Answer: 6Explanation:Oxidation number…
The number of unpaired electron in Mn²⁺ is Options (a) 1 (b) 4 (c) 3 (d) 5 Correct Answer: 5Explanation:No…
Which of the following statement concerning lanthanides elements is fals Options (a) All lanthanides are highly dense metals (b) More…