The valence electrons in a chloride ion are [17CI]
The valence electrons in a chloride ion are [17CI] A. 2p electrons only B. 3s and 3p electrons…
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from the following ores is iron extracted? I. Haematite ll. Bauxite III. Magnetite IV. Cassiterite
from the following ores is iron extracted? I. Haematite ll. Bauxite III. Magnetite IV. Cassiterite A. l and…
The following substances are heavy chemicals except
The following substances are heavy chemicals except A. sodium trioxocarbonate (IV) B. tetraoxosulphate (VI) acid C. lead (lV)…
Which of the following methods can be used to separate a mixture of two miscible…
Which of the following methods can be used to separate a mixture of two miscible liquids with different…
Pig-iron is brittle because it contains
Pig-iron is brittle because it contains A. a high percentage of carbon as impurity B. calcium trioxosilicate (IV)…
Which of the these metals will not liberate hydrogen from dilute HCI?
Which of the these metals will not liberate hydrogen from dilute HCI? A. Copper B. Iron C. Magnesium…
Consider the reaction below: Vegetable oil (frac{H2;NI catalyst}{High temperature}) product. The reaction is applied in…
Consider the reaction below: Vegetable oil (frac{H2;NI catalyst}{High temperature}) product. The reaction is applied in the manufacture of…
Which of the following compounds reacts readily with sodium to liberate hydrogen?
Which of the following compounds reacts readily with sodium to liberate hydrogen? A. CH3CH2CH3 B. CH3COOH C. CH3…
Glucose reduces Fehling’s solution on warming to
Glucose reduces Fehling’s solution on warming to A. copper (l) oxide B. copper (ll) oxide C. copper (l)…
Which of the following pairs of substances can be distinguished by use of NaHCO3 solution?
Which of the following pairs of substances can be distinguished by use of NaHCO3 solution? A. CH 3CH2OH…