MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Science knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following has highest electro negativity? |
| A. | C |
| B. | Mg |
| C. | Koala |
| D. | S |
| Answer» D. S | |
| 2. |
Pair containing isoelectronic species is |
| A. | \[H,He\] |
| B. | \[N{{a}^{+}},Na\] |
| C. | Omnivorous animals |
| D. | \[F,Cl\] |
| Answer» D. \[F,Cl\] | |
| 3. |
Cat ion having maximum number of unpaired electrons is |
| A. | \[M{{n}^{+2}}\] |
| B. | \[F{{e}^{+2}}\] |
| C. | Vulture |
| D. | \[N{{i}^{+2}}\] |
| Answer» B. \[F{{e}^{+2}}\] | |
| 4. |
Heaviest atom among the following is |
| A. | uranium |
| B. | lead |
| C. | Afforestation. |
| D. | radium |
| Answer» B. lead | |
| 5. |
Elements belonging to the same group have similar properties because |
| A. | they have similar electronic configuration of the outermost shell |
| B. | their atomic numbers go on increasing as we move down the group |
| C. | Layer of fat under skin |
| D. | none of the above |
| Answer» B. their atomic numbers go on increasing as we move down the group | |
| 6. |
The number of elements present in fifth period is |
| A. | 18 |
| B. | 32 |
| C. | Caterpillar |
| D. | 24 |
| Answer» B. 32 | |
| 7. |
The halogen (Group 17 elements) |
| A. | have an electron configuration of a noble gas less seven electrons |
| B. | are highly electro positive |
| C. | Larva |
| D. | forms a volatile, covalent hydrides HX in which the halogen (X) shows an oxidation state of +1 |
| Answer» D. forms a volatile, covalent hydrides HX in which the halogen (X) shows an oxidation state of +1 | |
| 8. |
Element having greatest tendency to lose electrons is |
| A. | \[S\] |
| B. | \[P\] |
| C. | Blubber |
| D. | \[Fe\] |
| Answer» E. | |
| 9. |
In the periodic table from left to right in a period the atomic volume |
| A. | decreases |
| B. | increases |
| C. | Koala |
| D. | first decreases then increases |
| Answer» E. | |
| 10. |
The elements of the group 16 are also called |
| A. | halogens |
| B. | noble gases |
| C. | Amphibians |
| D. | alkaline earth metals |
| Answer» D. alkaline earth metals | |
| 11. |
The element with highest electron affinity in the periodic table is |
| A. | iodine |
| B. | chlorine |
| C. | Rat |
| D. | oxygen |
| Answer» C. Rat | |
| 12. |
The element with the largest size in the second period is |
| A. | lithium |
| B. | fluorine |
| C. | Habitat |
| D. | oxygen |
| Answer» B. fluorine | |
| 13. |
In the periodic table, with the increase in atomic number the metallic character of an element |
| A. | decreases in a period and increases in a group |
| B. | increases in a period and decreases in a group |
| C. | Rat |
| D. | decreases both in period and group |
| Answer» B. increases in a period and decreases in a group | |
| 14. |
Which of the following elements has highest first ionization potential? |
| A. | C |
| B. | N |
| C. | |
| D. | O |
| Answer» C. | |