MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is not used as raw material for production of boranes? |
| A. | Methanol |
| B. | Sodium borohydride |
| C. | Glycol ether |
| D. | Mineral oil |
| Answer» C. Glycol ether | |
| 2. |
7(i)+ B(OCH3)3 NaBH4 + 6(ii)+ 3(iii) Name the compounds i, ii, iii? |
| A. | i.sodium hydride ii.sodium iii.methanol |
| B. | i.sodium Ii.methanol iii.sodium hydride |
| C. | i.sodium ii.sodium hydride iii.methanol |
| D. | i.sodium hydride ii.methanol iii.sodium |
| Answer» B. i.sodium Ii.methanol iii.sodium hydride | |
| 3. |
Which of the following reaction is wrong? |
| A. | Na+H NaH |
| B. | 2B<sub>5</sub>H<sub>9</sub> B<sub>10</sub>H<sub>14</sub> + 2H<sub>2</sub> |
| C. | 3CH<sub>3</sub>OH + H<sub>3</sub>BO<sub>3</sub> B(OCH<sub>3</sub>)<sub>3</sub> + 3H<sub>2</sub>O |
| D. | 3NaBH<sub>4</sub> + BI<sub>3</sub> 2B<sub>2</sub>H<sub>6</sub> + 3NaI |
| Answer» E. | |
| 4. |
Which grade hydrogen is used in production of boranes? |
| A. | Zero grade |
| B. | Ultra high purity grade |
| C. | Industrial grade |
| D. | Research grade |
| Answer» D. Research grade | |
| 5. |
Which of the following compound exists in liquid state? |
| A. | Diborane |
| B. | Pentaborane |
| C. | Decaborane |
| D. | Borane |
| Answer» C. Decaborane | |