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.
1.7g
3.4g
6.8g
13. 6 g
Correct answer is B
From Faraday;s second law of electrolysis
\(\frac{\text{Mass of silver deposited}}{\text{Mass of copper deposited}}\) = \(\frac{\text{Equivalent mass of silver}}{\text{Equivalent mass of copper}}\)
\(\frac{\text{Mass of silver deposited}}{1.0g}\) = \(\frac{108}{63.5}\)
= 31.75g
Copper is devalent = Cu2+
Mass of silver deposited = \(\frac{108g}{31.75g}\)
= 3.30g
An acid and its conjugate base
can neutralise each other to form a salt
differ only by a proton
differ only by the opposite charges they carry
are always neutral substances
Correct answer is B
No explanation has been provided for this answer.
an allotropic oxide
an amphoteric oxide
a peroxide
a dioxide
Correct answer is B
No explanation has been provided for this answer.
0. 1, 0 . 1
0. 1, 0. 2
0. 1, 0. 05
0.05, 0.1
Correct answer is B
No explanation has been provided for this answer.
50, 50
25, 50
50, 25
25, 25
Correct answer is C
No explanation has been provided for this answer.