| 1 |
Metals are the elements which have |
- A. Electropositive character
- B. Electronegative character
- C. Both a and b
- D. None of the above
|
| 2 |
Which one of the following is the lightest metal |
- A. Lithium
- B. Calcium
- C. Magnisium
- D. Sodium
|
| 3 |
Non-metal form |
- A. Positive ion
- B. Neurtal atom
- C. Negative ion
- D. None of these
|
| 4 |
The elements in which d-orbital is in the process of filling constitute a group of metals called. |
- A. Alkali metals
- B. Noble gases
- C. Transition Metals
- D. Alkaline earth metals
|
| 5 |
Metals can form ions carrying charges. |
- A. Uni Positive
- B. Di positive
- C. Tri positive
- D. All of these
|
| 6 |
The following solutions of a halogen and a sodium halide are mixed together Which solution will turn dark becasue of a reactions. |
- A. Br2 and NaF
- B. Br2 and NaCl
- C. Cl and NaF
- D. Cl2 and NaI
|
| 7 |
How many total non -metals exist in solid, liquid or gas at room temperature. |
|
| 8 |
Which group of elements has low ionization energies. |
- A. Alkaline earth metals
- B. Halogen
- C. Alkali metals
- D. Noble gases
|
| 9 |
Which oxide is themost basic oxide. |
- A. Na2O
- B. MgO
- C. Li2O
- D. CO
|
| 10 |
Platinu alloyed with whih metal is used as catalyst in automobiles an catalytic convertor. |
- A. Palladium
- B. Rhodium
- C. Gold
- D. Both a and b
|
