Post-UTME Chemistry 2005 Objective — Question 7

Question 7 of 27 from the Post-UTME Screening (Post-UTME) Chemistry 2005 Objective paper, with the correct answer and a full explanation.

Hydrogen forms two oxides. In the first oxide, 2g of hydrogen combine with 16g of oxygen. In the second oxide, 2g of hydrogen combine with 32g of oxygen. What law is illustrated?

A. The law of constant proportion
B. The law of conservation of matter
C. The law of multiple proportionCorrect
D. The law of reciprocal proportion

Explanation

Fixed masses of one element (hydrogen) combining with different masses of another (oxygen) in a simple whole-number ratio (16:32=1:2) illustrates the law of multiple proportions.

Sign up free to unlock

Score tracking
Practice history
Saved questions
Progress dashboard
Personalized sessions
Weak-topic breakdown

…and/or go further with premium services and No Ads.

Create free account

More questions from Chemistry 2005 Objective More Chemistry past papers