Metals and Non-metals Multiple Choice Questions and Answers

31. The metal with which hydrogen reacts to form metal hydride is

1. Hg
2. Ca
3. Ag
4. H

32. Nonmetals combine with oxygen to produce

1. Acidic oxides
2. Basic oxide
3. Amphoteric oxide
4. None of these

33. Phosphorous combine with oxygen to form _____ types of oxides

1. Three
2. Three
3. Two
4. Two
5. One
6. One
7. Four
8. Four

34. Phosphorous combine with oxygen to form _____ types of oxides

1. Three
2. Three
3. Two
4. Two
5. One
6. One
7. Four
8. Four

35. Nonmetals react with hydrogen to form

1. Covalent compounds
2. Ionic compounds
3. Electrovalent compounds
4. Coordinate compounds

36. Mercury is used in thermometers because

1. It does not wet the glass
2. It expands on heating
3. It is a liquid
4. All of these

37. ________ is used to make photographic films.

1. Sodium chloride
2. Silver bromide
3. Potassium iodide
4. Copper chloride

38. A crucible used in lab to heat solid at high temperature is made of

1. Sulphur
2. Silicon
3. Graphite
4. Phosphorous

39. The nonmetal used to treat rubber in the process of vulcanizations

1. Sulphur
2. Phosphorous
3. Carbon
4. Chloride

40. Due to its semiconductor properties, the nonmetal used in computers, TV, etc. is

1. Carbon
2. Silicon
3. Bromine
4. Fluorine