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.
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2
3
4
Correct answer is B
6.02 x 1023 molecules is 1mole
1.204 x 1024 molecules will be......
1.204×1024×16.02×1023
1.204×106.02 = 12.046.02 = 2moles
Conservation of mass
Definite proportion
Mass action
Multiple proportion
Correct answer is D
No explanation has been provided for this answer.
The bond formed between H2O and H+ to form the hydroxonium H3O+ is
Dative
Covalent
Electrovalent
Ionic
Correct answer is A
No explanation has been provided for this answer.
Which of the following elements would produce coloured ion in agueous solution?
Calcuim
Copper
Magnesuim
Sodium
Correct answer is B
No explanation has been provided for this answer.
The shape of the water molecule is_______?
Linear
Pyramidal
Tetrahedral
V-shaped
Correct answer is D
The bond angle in water is compressed approximately to 105°, such that the structure of the water molecule is V-shaped or Angular.