Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

Less corrosive acid is

A. H2SO4
B. H2CO3
C. HCl
D. HNO3
Answer» C. HCl
Discussion
2.

The stronger the acid, the

A. the more the hydrogen ions be
B. less the hydrogen ions be
C. None of Above
D. the more the covalence be
Answer» B. less the hydrogen ions be
Discussion
3.

Rain water has a pH of

A. 3
B. 1
C. 7
D. 5
Answer» E.
Discussion
4.

The chemical formula of zinc hydroxide is

A. ZNO2
B. Zn(OH)2
C. ZnOH
D. Zn2(OH)3
Answer» C. ZnOH
Discussion
5.

Full shell of valence electrons make

A. non metals
B. metals
C. isotopes
D. inert gases unreactive
Answer» E.
Discussion
6.

Helium is not an inert gases because

A. it lacks a full shell of valence electrons
B. it is chemically very reactive
C. None of Above
D. Both A and B
Answer» E.
Discussion