In the preparation of oxygen by heating KClO3 in the presence of MnO2, only moderate…
In the preparation of oxygen by heating KClO3 in the presence of MnO2, only moderate heat is needed…
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The IUPAC nomenclature of the compound LiAlH4 is
The IUPAC nomenclature of the compound LiAlH4 is A. lithiumtetrahydridoaluminate (III) B. aluminium tetrahydrido lithium C. tetrahydrido lithium…
Iron can be protected from corrosion by coating the surface with
Iron can be protected from corrosion by coating the surface with A. gold B. silver C. copper D.…
If a reaction is exothermic and there is a great disorder, it means that
If a reaction is exothermic and there is a great disorder, it means that A. the reaction is…
What quantity of aluminium is deposited when a current of 10A is passed through a…
What quantity of aluminium is deposited when a current of 10A is passed through a solution of an…
In which of the following is the entropy change positive?
In which of the following is the entropy change positive? A. Thermal dissociation of ammonium chloride B. Reaction…
Which of the following salts is slightly soluble in water?
Which of the following salts is slightly soluble in water? A. AgCl B. CaSO4 C. Na2CO3 D. PbCl2…
6AgNO4(aq) + PH3(g) + 3H2O(l) → 6Ag(s) + H3PO3(g) + 6HNO3(aq) In the above reaction,…
6AgNO4(aq) + PH3(g) + 3H2O(l) → 6Ag(s) + H3PO3(g) + 6HNO3(aq) In the above reaction, the reducing agent…
Calculate the volume of 0.5 mol dm-3 H2So4 that is neutralized by 25 cm3 of…
Calculate the volume of 0.5 mol dm-3 H2So4 that is neutralized by 25 cm3 of 0.1 mol dm-3…
The acid that is used to remove rust is
The acid that is used to remove rust is A. boric B. hydrochloric C. trioxonitrate (V) D. tetraoxosulphate…