Welcome to Schoolngr.com

Home   School   News   C B T   Classroom
Thursday, 21 November 2024

RegisterLogin

Neco Chemistry Past Questions and Answers

Exam year:
Question type:
Topics:

Neco Chemistry Past Questions

Question 156:


Which of the following is NOT a fraction of petroleum?

A. Bitumen
B. Coal
C. Diesel
D. Kerosene
E. Petrol


Question 157:


Which of the following statements is NOT correct of group VII elements? They

A. Are diatomic
B. Are good oxidizing agents
C. Are highly electronegative
D. Have high electron affinity
E. Have relatively low ionization potentials


Question 158:


The empirical formula of a hydrocarbon containing 0.12 mole of carbon 0.3 mole of hydrogen is ____________

A. CH2
B. CH3
C. C2H2
D. C2H4
E. C2H6


Question 159:


The reaction of an alkanol with alkanioc acid is known as ____________

A. Dehydration
B. Esterification
C. Halogenation
D. Hydrogenation
E. Saponification


Question 160:


The rate of a reaction usually increases with increase in the concentration of reactants because the ____________

A. Distance between particles of the reactants increases
B. Frequency of collision of particles is lower
C. Particles of the reactants gain energy and move faster
D. Reactants from a complex which decomposes rapidly
E. Reactants occupy a higher energy level






AboutContact usBack to Top
...

Disclaimer
All Views, Names, Acronyms, Trademarks, Expressed on this website are those of their respective owners. Please note that www.schoolngr.com is not affiliated with any of the institutions featured in this website. It is always recommended to visit an institutions or sources official website for more information. In the same vein, all comments placed here do not represent the opinion of schoolngr.com


SCHOOLNGR - © 2020 - 2024 - Tayo Hammed | Terms Of Service | Copyright | Privacy Policy