MCQOPTIONS
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MCQOPTIONS
This section includes 856 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 851. |
What are the number of moles of CO2 which contains 16 g of oxygen? |
| A. | 0.5 mole |
| B. | 0.2 mole |
| C. | 0.4 mole |
| D. | 0.25 mole |
| Answer» B. 0.2 mole | |
| 852. |
The molecule which has the highest percentage of ionic character among the following is |
| A. | HI |
| B. | HF |
| C. | HCI |
| D. | HBr |
| Answer» C. HCI | |
| 853. |
The hardest form of carbon is |
| A. | coke |
| B. | graphite |
| C. | diamond |
| D. | charcoal |
| Answer» D. charcoal | |
| 854. |
The metallurgical process in which a metal is obtained in a fused state is called |
| A. | smelting |
| B. | roasting |
| C. | calcinations |
| D. | froth floatation |
| Answer» B. roasting | |
| 855. |
The metal does not give H2 on treatment with dilute HCL is |
| A. | Zn |
| B. | Fe |
| C. | Ag |
| D. | Ca |
| Answer» D. Ca | |
| 856. |
The nucleus of an atom consists of |
| A. | electrons and neutrons |
| B. | electrons and protons |
| C. | protons and neutrons |
| D. | All of the above |
| Answer» D. All of the above | |