MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Metals consist of ______% of the elements known. |
| A. | 78 |
| B. | 32 |
| C. | 22 |
| D. | 68 |
| Answer» B. 32 | |
| 2. |
Chalcogens are the elements of Group ___________ |
| A. | 18 |
| B. | 16 |
| C. | 12 |
| D. | 2 |
| Answer» C. 12 | |
| 3. |
Which of the following is not true about transuranium elements? |
| A. | Atomic number > 92 |
| B. | Elements after Uranium |
| C. | Decay radioactively as they are unstable |
| D. | Example is Thorium |
| Answer» E. | |
| 4. |
The outer shell electronic configuration of transition block elements is given by ________ |
| A. | (n-1)d<sup>1-10</sup>ns<sup>2</sup> |
| B. | (n-1)d<sup>1-10</sup>(n-1)s<sup>0-2</sup> |
| C. | (n-1)d<sup>1-10</sup>ns<sup>0-2</sup> |
| D. | nd<sup>1-10</sup>ns<sup>0-2</sup> |
| Answer» D. nd<sup>1-10</sup>ns<sup>0-2</sup> | |
| 5. |
What happens to the non-metallic nature as we move from left to right in groups? |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | Irregular |
| Answer» B. Decreases | |
| 6. |
The p-block elements along with s-block elements are called as ________ elements. |
| A. | Inner transition |
| B. | Representative |
| C. | Radioactive |
| D. | Transition |
| Answer» C. Radioactive | |
| 7. |
ns1 and ns2 are the outer shell configurations of elements in s-block. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
__________ has both the characteristics of Alkali metals and halogens. |
| A. | Helium |
| B. | Chlorine |
| C. | Sodium |
| D. | Hydrogen |
| Answer» E. | |
| 9. |
Name the element that belongs to s-block but is placed in the p-block. |
| A. | Hydrogen |
| B. | Helium |
| C. | Argon |
| D. | Aluminum |
| Answer» C. Argon | |