Post Utme Chemistry Past Questions and Answers

Question 801:

The processes which return carbon (IV) oxide to the atmosphere include ____________

A. Photosynthesis, decay and respiration
B. Photosynthesis, respiration and transpiration
C. Respiration, decay and combustion
D. Ozone depletion, combustion and decay

Question 802:

The postulate of Daltons atomic theory which stills hold is that ____________

A. Particles of different elements combine in a simple whole number ratio
B. Atom can neither be created nor destroyed
C. The particles of the same elements are exactly alike
D. All elements are made of small indivisible particles

Question 803:

Which of the following gives a precipitate when treated with NaOH solution?

A. \(Na_2CO_3\)
B. \(CH_3COONa\)
C. \(NH_4Cl\)
D. \(AIC_3\)

Question 804:

The compound below is a CH, CH,CH CH I OH

A. Tertiary alkanol
B. Primary alkanol
C. Gycol
D. Secondary alkanol

Question 805:

In which order are the toulowing salts sensitive to light?

A. Agl>AgCl>AgBr
B. AgCl>Agl>AgBr
C. \(AgBr > AgC > Agl
D. \cdot AgCl > AgBr > Agl\)