Chinese white is
Chinese white is Options (a) ZnO (b) ZnCO₃ (c) ZnS (d) ZnS + BaSO₄ Correct Answer: ZnOExplanation:No explanation available. Be…
7 years ago
Chemistry
Reaction of solid KMnO₄ ith conc.H₂SO₄ produces manganese heptoxide (Mn₂O₇) in
Reaction of solid KMnO₄ with conc.H₂SO₄ produces manganese heptoxide (Mn₂O₇) in Options (a) solution state (b) solid state (c) fine…
7 years ago
The amphoteric oxide is
The amphoteric oxide is Options (a) Mn₂O₇ (b) MnO (c) MnO₂ (d) Mn₂O₃ Correct Answer: MnO₂Explanation:(i) Oxides in lower oxidation…
7 years ago
A yellow metal sulphide is
A yellow metal sulphide is Options (a) CuS (b) NiS (c) CdS (d) ZnS Correct Answer: CdS Explanation: The colour…
7 years ago
Which is not the property transition elements
Which is not the property transition elements Options (a) Coloured salts (b) Variable valency (c) Fixed valency (d) coordinate complex…
7 years ago
Oxidation number of chromium in Na₂Cr₂O₇ is
Oxidation number of chromium in Na₂Cr₂O₇ is Options (a) 2 (b) 4 (c) 3 (d) 6 Correct Answer: 6Explanation:Oxidation number…
7 years ago
The number of unpaired electron in Mn²⁺ is
The number of unpaired electron in Mn²⁺ is Options (a) 1 (b) 4 (c) 3 (d) 5 Correct Answer: 5Explanation:No…
7 years ago
Which of the following statement concerning lanthanides elements is fals
Which of the following statement concerning lanthanides elements is fals Options (a) All lanthanides are highly dense metals (b) More…
7 years ago
The magnetic moment of Sc³⁺ is
The magnetic moment of Sc³⁺ is Options (a) 1.86 (b) 2.76 (c) 0 (d) 1.76 Correct Answer: 0Explanation:No explanation available.…
7 years ago
Which of the following metal is not ferromagnetic
Which of the following metal is not ferromagnetic Options (a) Cobalt (b) Iron (c) Manganese (d) Nickel Correct Answer: Manganese…
7 years ago