Learn more about the properties, composition, and structure of substances (elements and compounds) with these Chemistry questions and answers. This Test can be used by students preparing for Chemistry in JAMB, WAEC, NECO or Post UTME.
Calcium is usually extracted by the electrolysis of its
trioxonitrate (V)
tetraoxosulphate (IV)
oxide
hydride
chloride
Correct answer is E
No explanation has been provided for this answer.
Polyatomicity is illustrated by molecules of
sulphur
carbon (IV) oxide
noble gases
liquefied oxygen
liquefied nitrogen
Correct answer is A
No explanation has been provided for this answer.
The following will decolourize acidified potassium tetraoxomanganate (VII) solution except
sulphur (lV) oxide
but-3-ene
pentane
hydrogen sulphide
propyne
Correct answer is C
No explanation has been provided for this answer.
Tetraoxosulphate (lV) acid is described as strong acid because it is highly
corrosive
concentrated
reactive
soluble in water
ionized in water
Correct answer is E
No explanation has been provided for this answer.
The number of atoms in 1.2g of carbon - 12 isotope is
1.00 x 10 22
6.02 x 1022
1.20 x 10 23
1.00 x 1023
6.02 x 1024
Correct answer is B
No explanation has been provided for this answer.