The appropriate test paper to use in the above experiment is moist
- A. litmus psper
- B. potassium heptaoxodichromate (IV) paper
- C. lead (ll) trioxonitrate (V) paper
- D. universal indicator paper
The data in the table above shows the rate of reaction of nitrogen (ll) oxide with chlorine at 25oC It can be concluded that doubling the initial concentration of NO increase the rate of reaction by a factor of
- A. two
- B. three
- C. four
- D. five
50 cm3 of sulphur (lV) oxide, 800 cm3 of carbon (IV) oxide will respectively saturate 1.0cm3 of water at 15oC. Which of the following is suitable for demonstrating the fountain experiment?
- A. Sulphur (IV) oxide and hydrogen chloride.
- B. Carbon (IV) oxide and ammonia
- C. Ammonia and hydrogen chloride
- D. Carbon (IV) oxide and Sulphur (IV) oxide
The electrons of two atoms Y and Z are arranged in shells as shown above. The bond formed between the atoms of Y and Z is
- A. ionic
- B. covalent
- C. dative
- D. metallic
Which of these is an acid salt?
- A. K2SO4-.AI2(SO4)3.24H2O
- B. CuCO3.Cu(OH)2
- C. NaHS
- D. CaOCI2-
Which of the following are the products of the reaction between CH3COOH and CI2 in sunlight?
- A. CICH2COOH + HCI
- B. CH3COCI + HOCI
- C. CH3COOCI + HCI
- D. CH3COCI + HO2
Which of the following statements is TRUE of the complete hydrolysis of a glycerine by sodium hygroxide?
- A. 3 moles ofNaOH are required for each mole of glyceride
- B. 3 moles of glycerol are produced
- C. Only one mole of soap is formed
- D. concentrated H2SO4 is essential for the completion of the reaction
Is known as?
- A. 1-chloro-2-methylbutane
- B. 1-chloro-2-methylpropane
- C. 2-chloromethylpropane
- D. 1-chloro-2, 2-dimethylethane
A certain liquid has a high boiling point. It is viscous, non-toxic, miscible with water being very hygroscopic. This liquid is most likely to be?
- A. CH3CH2CH2HO
- B. CH3CHOHCH3
- C. CH3CH2CHOHCH3
- D. CH2OHCHOHCH2OH
One advantages of detergents over soap is that detergents?
- A. are easier to maufacture
- B. foam more than soap
- C. form soluble salts with hard water
- D. are able to deter germs more than soap
Ethene when passed into concentrated H2SO4 is rapidly absorbed. The product is diluted with water and then warmed to produce?
- A. ethanol
- B. diethyl ether
- C. ethanal
- D. diethyl sulphate
How many grams of bromine will be required to completely react with 10 g of propyne?
(C = 12, H = 1, Br = 80)
- A. 20 g
- B. 40 g
- C. 60 g
- D. 80 g
Which of the following compounds can exist as geometric isomers?
- A. 2-methylbut-2ene
- B. But-2-ene
- C. But-1-ene
- D. CI-C-Br
Copper (II) tetraoxosulphate (IV) is widely used as a?
- A. fertilizer
- B. fungicide
- C. disinfectant
- D. purifier
Which of the following metals can be prepared in samples by the thermal decomposition of their trioxonitrate (V) salts?
- A. Copper and mercury
- B. Silver and copper
- C. Mercury and silver
- D. Magnesium and mercury
Which of the following, in clear solution, forms a white precipitate when carbon (IV) oxide is bubbled into it for a short time?
- A. KOH
- B. NaOH
- C. Ca(OH)2
- D. AI(OH)3
Addition of aqueous ammonia to a solution of Zn++ gives a white precipitate which dissolves in an excess of ammonia because?
- A. zinc is amphoteric
- B. zinc hydroxide is readily soluble
- C. zinc forms a complex which is readily soluble in excess ammonia
- D. ammonia solution is a strong base
Oxygen gas can be prepared by heating?
- A. ammonium trioxonitrate (V)
- B. ammonium trioxonitrate (III)
- C. ppotassium trioxonitrate (V)
- D. mamgamese (IV) oxide
Which of the following salts can be melted without decomposition?
- A. Na2CO3
- B. CaCO3
- C. MgCO3
- D. ZnCO3
Which of the following gases will rekindle a brightly glowing splint?
- A. NO2
- B. NO
- C. N2O
- D. CI2
Which of the following equilibria is unaffected by a pressure change?
- A. 2NaCI(s) ↔ 2Na (I) + CI2(g)
- B. H 2(g) + I2(g) ↔ 2HI(g)
- C. 2O3(g) ↔ 3O2(g)
- D. 2NO2(g) ↔ N2O4(g)