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.
H 2O (g) + C (s) → H2(g) + CO(g)
The oxidizing agent in the reaction above is
CO(g)
C(s)
H2O(g)
H(2)(g)
Correct answer is C
No explanation has been provided for this answer.
0 to + 4
0 to + 2
+ 1 to + 2
+ 1 to + 3
Correct answer is B
No explanation has been provided for this answer.
Which of the following salts will turn blue litmus red?
Sodium tetrahydroxozincate (ll)
Sodium hydrogentetraoxosulphate (VI)
Sodium trioxocarbonate (lV)
Zinc chloride hydroxide
Correct answer is B
No explanation has been provided for this answer.
The mathematical expression of PH is
log 10[OH-]
log 101/[H 3 O+]
log 10[H 3 O+]
log 101/[OH -]
Correct answer is B
No explanation has been provided for this answer.
The colour of litmus in a neutral medium is
purple
pink
yellow
orange
Correct answer is A
The colour of a neutral litmus solution is purple.
Litmus solution is made up of purple dye which is extracted from Lichens.
It is a natural Indicator and it is used to indicate the presence of an acid or a base.
A litmus paper will turn red in the presence of an acid and it turns blue in the presence of a base.