Search SchoolNGR

Chemistry Past Questions and Answers

Neco Chemistry Questions

Question 81:

pH is define as ____________

SchoolNGR Classroom

A [H+]
B –log [H]
C –log [H+]
D Log [H]
E Log [H+]

View Answer & Explanation

Question 82:

Matter is neither created nor destroyed in the course of any chemical reactions is a statement of the law of ____________

SchoolNGR Classroom

A Combining volumes
B Conservation of mass
C Definite proportion
D Multiple proportion
E Reciprocal proportion.

View Answer & Explanation

Question 83:

Bauxite is the ore of ____________

SchoolNGR Classroom

A Aluminium
B Calcium
C Iron
D Sodium
E Magnesium

View Answer & Explanation

Question 84:

An element Z has a combining power of 3. Which of the following formulae is correct of its compound?

SchoolNGR Classroom

A ZS₃
B ZSO₃
C ZS0₄
D Z0₃
E Z₃Cl₂

View Answer & Explanation

Question 85:

The following acids are monobasic EXCEPT

SchoolNGR Classroom

A Dioxonitrate (Ill) acid
B Ethanedioic acid
C Hydrobromic acid
D Methanoic acid
E Oxochlorate (I) acid

View Answer & Explanation

Stay Updated

Follow us on:

Subjects