Elements And Compounds Around Us QUESTIONS AND ANSWERS :: part6 : 1 to 5
Following Elements And Compounds Around Us Multiple choice objective type questions and answers will help you in many competitive written examinations and inteview 2024 like SSC exams :
1.Which one of the following is a disinfectant? |
| Bleaching powder |
| Baking powder |
| Chalk powder |
| none |
2.The combining capacity of an element is …………….. |
| Valency |
| Formula |
| Symbol |
| none |
3.The formula of quick lime is …………….. |
| CaO |
| Ca₂O₄ |
| Ca₃O₂ |
| none |
4.The compound used in fire extinguisher is ……………. |
| Quick lime |
| Limestone |
| Baking soda |
| none |
5.The formula of slaked lime is |
| CaO |
| Ca(OH)₂ |
| CaCO₃ |
| none |
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