- 1. Metals are elements whose atoms ionize by electron _________
A) atom
B) lose
C) ion
D) gain
- 2. Non-metals are elements whose atoms ionize by electron ________
A) gain
B) lose
C) atom
D) element
- 3. _________ is a liquid metal at room temperature with a melting point of -39ᵒc
A) Element
B) Metal
C) Mercury
D) Diamond
- 4. Metals are _______ agents because they tend to donate their electrons readily during chemical reactions.
A) oxidizing
B) combining
C) reducing
D) producing
- 5. The positive ions enter into chemical combinations with negative ions or radicals to form _______ compounds.
A) ionization
B) covalent
C) ionize
D) electrovalent
- 6. _________ of metals is the process by which metals are isolated from their ore.
A) Ionisation
B) Chemical
C) Property
D) Extraction
- 7. During electrolysis, the ________ acts as a reducing agent by supplying electrons to the metallic ions in the electrolyte, resulting in the deposition of the free metal.
A) Electrode
B) Cataion
C) Cathode
D) Anode
- 8. 8.
What is the element that ionise to form positive ions by losing electrons____ → Na+ + e-
A) AL
B) K
C) Ca
D) Na
- 9. Sodium and ________ are light, soft metals with low melting point of 97ᵒc and 63ᵒc.
A) Ion
B) Calcium
C) Potassium
D) Chlorine
 A) Ca2HC03
B) CaC03
C) Ca0H2
D) Ca2+(OH-)2(aq)
- 11. At the cathode, the _________ ions receive an electron, each to become metallic sodium.
A) Calcium
B) Sodium
C) Ion
D) Chlorine
- 12. At the anode, the _______ ions give up an electron each to become chlorine atom which then pair up to form gaseous chlorine molecules.
A) Sodium
B) Iron
C) Chloride
D) Water
- 13. _______ forms ionic compounds with high melting points. These compounds are water soluble and mostly white.
A) Calcium
B) Iron
C) Sodium
D) Oxygen
- 14. Ethanoic acid reacts reversibly with alkanol to form ______
A) Ester
B) Fat
C) Liquid
D) Sugar
- 15. When an alkanol reacts with a carboxylic acid, an ester and water are formed, this reaction is called an ______ reaction.
A) Endothermic
B) Esterification
C) Reduction
D) Oxidation
- 16. Fats and oil belong to a group of compound known as _______
A) Animals
B) Soaps
C) Sugar
D) Lipids
- 17. In formation of soap, the general process of alkaline hydrolysis of esters by which soap is obtained is called _________
A) Fatty acid
B) Saponification
C) Esterification
D) Glucose
- 18. Fats are ________ and of animal origin.
A) Liquid
B) Solid
C) Temperature
D) Plants
- 19. Oils are __________ mainly from plants and room temperature.
A) Solid
B) Fluid
C) Liquid
D) Water
- 20. The last product of lipid is ______
A) Amino acid
B) Ester
C) Fatty acid
D) Glucose
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