Acids/base Indicators Jamb Chemistry Past Questions
Question 6
The inherited traits of an organism are controlled by?
- A. RNA molecules
- B. Nucleotides
- C. DNA molecules
- D. Enzymes
Question 7
A solution containing chloride ions gives white precipitate with silver trioxonitrate(V) Solution. The precipitate will be insoluble in dilute?
- A. HNO 3 but soluble in ammonia solution
- B. HNO3 and ammonia solution
- C. HCl but soluble in ammonia solution
- D. HCl and in ammonia solution
Question 8
Which of the following statements is NOT true of electrovalent compounds?
- A. They are solids
- B. They do not vaporized easily
- C. They usually dissolve in water
- D. The elements forming the compounds normally have their valency electrons in a shared state
- E. They conduct electricity
Question 9
The brown coloration in nitric acid prepared in the laboratory can be removed by?
- A. heating the acid
- B. bubbling air through the acid
- C. cooling the acid
- D. adding a decolorizing agent
- E. adding a base
Question 10
In the reaction
C + 2HNO3 → CO2 + NO2 + NO + H2O nitric acid is acting as?
- A. a reducing agent
- B. a nitrating agent
- C. an oxidizing agent
- D. a catalytic agent
- E. a neutralizing agent
