Already a member? Login
A 6-digit reset code will be sent to your phone number
Cancel? Return to login
A 6-digit reset code will be sent to your email
Sign up as a new member
Paper 1 | Objectives | 37 Questions
Type: Question Paper
No description provided
This paper is yet to be rated
Yet to recieve reviews
Add a review
Revision tips on test preparation for Grade A students to. Grade A students tips for any test.
Make sure you study hard but not into the late-night hours to give your body the enough rest you need.
Effective ways of coping with exam stress and test anxiety which is supported by Science
Apply tips for stress-free eating before and during exams and what to avoid for good grades.
Past questions are effective for revisions for all tests including WAEC, BECE, SAT, TOEFL, GCSE, IELTS
Paper 1 | Objectives
The electronic configuration of an element X is 1s22s 22s63p 2 3p4. It can be deduced that X
A. Belongs to group 6 of the Periodic Table
B. Belongs to group IV of the Periodic Table
C. has 3 unpaired electrons in its atom
D. has relative molecular mass of 16
What is the mass number of an element having 20 neutrons, 15 protons and 15 electrons?
Which of the following sets of elements are arranged in order of decreasing atomic size in the Periodic Table?
A. 6C, 4Be, 7N,8 O
B. 4Be,6 C,7 N,8 O
C. 8O, 7 N, 6C, 4Be
D. 7N, 8O, 6C,4BeBe
Which of the following changes is characteristic of an alpha-particle emission?
A. the nucleus loses two protons and two neutrons
B. a proton combines with an electron giving off heat
C. the nucleus splits into two equal parts
D. four neutrons are lost
An element X has an atomic number of 16. What is its most likely oxidation state in its binary compounds?
An element which can exist in two or more forms in the same physical state, exhibits
B. structural isomerism
D. variable valency
Which of the following can be used to predict the type of bonding in HCI?
A. pH value
B. Electronegativity difference
C. Heat of neutralization
D. Heat of solution
Which of the following molecules has a linear structure?
Preview displays only 8 out of the 37 Questions