| 1 |
Hydrogen resembles in properties with |
- A. IA, IV A and VII A elements
- B. III A, IV A and V A elements
- C. II A, IV A and VI A elements
- D. II A, III A and VII A elements
|
| 2 |
The oxides of metal sare generally |
- A. Acidic
- B. Basic
- C. Neutral
- D. Amphoteric
|
| 3 |
The concept of atomic number was introduced by |
- A. Alrazi
- B. Mendeleeve
- C. Moseley
- D. Dobereiner
|
| 4 |
In which compound, oxidation state of sulphur is +6 |
- A. H2S
- B. H2SO4
- C. H2SO3
- D. SO3
|
| 5 |
Which property of hydrogen not resemble to alkali metals. |
- A. Electronic configuration
- B. Oxidation state
- C. Reaction with halogen
- D. Metallic nature
|
| 6 |
Which the correct statement |
- A. Cl<sup>-</sup>is smaller than Cl atom
- B. Cl<sup>-</sup>(Ion) and Cl (atom) are equal in size
- C. Na<sup>+</sup>is smaller than Na atom
- D. Na<sup>+</sup>is larger than Na atom
|
| 7 |
Which element when react with chlorine form polymeric halide. |
|
| 8 |
Fluorine is in group VII A of periodic table. Its chemistry will most closely resembles that of. |
- A. Argon
- B. Boron
- C. Iodine
- D. Sulphur
|
| 9 |
Which of the following are alkaline earth metals? |
- A. Be, Mg, Ca
- B. Li, Na, K
- C. Fe, CO, Ni
- D. B, Al, Ga
|
| 10 |
What are the total numbers of periods in the modern periodic table. |
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