Post Utme Chemistry Past Questions and Answers

Question 796:

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How long does it takes all the solid to melt?

A. 2.5mins
B. 6.0mins
C. 1.0mins
D. 3.0mins

Question 797:

Which of the following represent hybridization in ethyne?

A. \(Sp^2\)
B. \(Sp^2d\)
C. \(Sp^3\)
D. Sp

Question 798:

When chlorine is passed into water and the resulting solution ss exposed to sunlight, the product formed are ____________

A. Chlorine gas and hydrogen
B. Oxygen and oxochlorate [I] acid
C. Chlorine gas and oxochlorate (1) acid
D. Hydrochloric acid and oxygen

Question 799:

A buming candle produces water and ____________

A. Carbon(II) oxide
B. Carbon(IV) oxide
C. Oxygen
D. Hydrogen

Question 800:

If 0.75 mole of cyclopropane 0.66 mole of oxygen are mixed in vessel with a total pressure of 0.1 atmosphere, what is the partial pressure of oxygen in the mixture?

A. 0.55 atmosphere
B. 0.44 atmosphere
C. 0.33 atmosphere
D. 0.22 atmosphere