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MCQOPTIONS
This section includes 6820 Mcqs, each offering curated multiple-choice questions to sharpen your Science knowledge and support exam preparation. Choose a topic below to get started.
| 1351. |
What is the IUPAC name of acetylene? |
| A. | ethene |
| B. | ethine |
| C. | Propane |
| D. | Butine - 2 |
| Answer» C. Propane | |
| 1352. |
Is there vinegar? |
| A. | 5% solution of acetic acid in water |
| B. | 25 percent solution of acetic acid in water |
| C. | 50% solution of acetic acid in water |
| D. | 40 percent solution of acetic acid in water |
| Answer» B. 25 percent solution of acetic acid in water | |
| 1353. |
Where is vinegar known in Latin language? |
| A. | formicus |
| B. | acetum |
| C. | butyrum |
| D. | oxalum |
| Answer» C. butyrum | |
| 1354. |
Is it vegetable oil? |
| A. | mixture of different hydrocarbons |
| B. | mixture of alcohols and hydrocarbons |
| C. | unsaturated fatty acids |
| D. | glycerides of unsaturated fatty acids |
| Answer» E. | |
| 1355. |
Urotropin used in urinary diseases is made from? |
| A. | from chloroform |
| B. | from nitrobenzene |
| C. | from acetic acid |
| D. | from formaldehyde |
| Answer» E. | |
| 1356. |
Bakelite plastic is obtained from? |
| A. | by polymerization of ethylene |
| B. | by the reaction of phenol and formaldehyde |
| C. | reaction of urea and formaldehyde |
| D. | by polymerization of vinyl chloride |
| Answer» D. by polymerization of vinyl chloride | |
| 1357. |
Most explosions in mines are? |
| A. | by mixing nitrogen with oxygen |
| B. | by mixing oxygen with acetylene |
| C. | by mixing methane with air |
| D. | by mixing carbon dioxide with ethane |
| Answer» D. by mixing carbon dioxide with ethane | |
| 1358. |
of benzene and acetylene? |
| A. | Are molecular formula and proportional formula the same? |
| B. | The molecular formula is different but the proportional formula is the same. |
| C. | The molecular formula is the same but the fundamental formula is different. |
| D. | None of the above is correct. |
| Answer» C. The molecular formula is the same but the fundamental formula is different. | |
| 1359. |
Refining Spirit? |
| A. | mixture of ethyl alcohol and methyl alcohol |
| B. | pure ethyl alcohol |
| C. | ethyl alcohol used as fuel |
| D. | 95. 57 percent ethyl alcohol and 4. 43 percent water |
| Answer» E. | |
| 1360. |
Alcoholic beverages contain? |
| A. | butyl alcohol |
| B. | methyl alcohol |
| C. | ethyl alcohol |
| D. | propyl alcohol |
| Answer» D. propyl alcohol | |
| 1361. |
Used to extinguish fires caused by electricity? |
| A. | pyrene fire extinguisher |
| B. | Foam fire extinguisher |
| C. | Water fire extinguisher |
| D. | Soda acid fire extinguisher |
| Answer» B. Foam fire extinguisher | |
| 1362. |
Which solvent is used in dry washing of clothes? |
| A. | chloroform |
| B. | acetone |
| C. | ethyl alcohol |
| D. | carbon tetrachloride |
| Answer» D. carbon tetrachloride | |
| 1363. |
Teacher is iodine? |
| A. | aqueous solution of iodine |
| B. | solution of iodine with acetylene |
| C. | solution of iodine with benzene |
| D. | alcoholic solution of iodine |
| Answer» E. | |
| 1364. |
Chloroform is kept in colored bottles because it reacts with air and light to form a toxic substance, is it a toxic substance? |
| A. | phosphine |
| B. | phosgene |
| C. | mustard gas |
| D. | carbon monoxide |
| Answer» C. mustard gas | |
| 1365. |
What is the constituent element in alcohol? |
| A. | N , H and O |
| B. | C , H and O |
| C. | O , C and N |
| D. | H , Cl and O |
| Answer» C. O , C and N | |
| 1366. |
Doctors are of the opinion that people suffering from kidney and gall bladder stones should not take tomatoes, eggs, milk and cabbage in large quantities so that crystals of which of the following cannot be formed? |
| A. | calcium phosphate |
| B. | calcium oxalate |
| C. | calcium chloride |
| D. | calcium sulfate |
| Answer» C. calcium chloride | |
| 1367. |
What is coated in specially made non-sticky utensils for cooking? |
| A. | black colored |
| B. | Of polyethylene |
| C. | of poly styrene |
| D. | of teflon |
| Answer» E. | |
| 1368. |
Ethylene reacts with sulfur monochloride to form which toxic gas? |
| A. | lucite |
| B. | mustard gas |
| C. | chloropicrin |
| D. | serine |
| Answer» C. chloropicrin | |
| 1369. |
Do isomer compounds show fractions? |
| A. | in atomic session |
| B. | in structural formula |
| C. | in chemical properties |
| D. | in all these |
| Answer» C. in chemical properties | |
| 1370. |
The petrol sold at petrol stations is mixed gasoline. when mixed |
| A. | The anti-explosive property of petrol increases. |
| B. | Petrol becomes cheaper. |
| C. | The smell subsides. |
| D. | The smoke released on combustion of petrol is reduced. |
| Answer» B. Petrol becomes cheaper. | |
| 1371. |
Are there normal butane and iso butane? |
| A. | optical isomer |
| B. | chain isomer |
| C. | position isomer |
| D. | functional isomer |
| Answer» C. position isomer | |
| 1372. |
From the point of view of safety, what is filled in cooking LPG gas cylinder to make the gas smelly so that it can be detected quickly in case of leakage? |
| A. | glycol |
| B. | glycerol |
| C. | mercaptan |
| D. | alcohol |
| Answer» D. alcohol | |
| 1373. |
What is an example of polymerization? |
| A. | conversion of acetylene to benzene |
| B. | conversion of formaldehyde to trioxal |
| C. | conversion of acetaldehyde to trioxal |
| D. | All of the above. |
| Answer» E. | |
| 1374. |
What is pure alcohol? |
| A. | 90 percent ethyl alcohol |
| B. | 95. 57 percent ethyl alcohol |
| C. | 98 percent ethyl alcohol |
| D. | 100 percent ethyl alcohol |
| Answer» E. | |
| 1375. |
Is the refrigerator Freon? |
| A. | calcium fluoride |
| B. | fluorspar |
| C. | hydrofluoric acid |
| D. | dichloro difluoro methane |
| Answer» E. | |
| 1376. |
What is the shape of an ethylene molecule? |
| A. | planar |
| B. | Angular |
| C. | linear |
| D. | Quadrilateral |
| Answer» B. Angular | |
| 1377. |
How is the quality of a sample of gasoline determined? |
| A. | by its iodine value |
| B. | from its seat number |
| C. | by its octane number |
| D. | by its mass density |
| Answer» D. by its mass density | |
| 1378. |
Ethylene is a . . . . |
| A. | saturated hydrocarbons |
| B. | unsaturated hydrocarbons |
| C. | alcohol |
| D. | aldehyde |
| Answer» C. alcohol | |
| 1379. |
What is methanol known as? |
| A. | drinking alcohol |
| B. | grain alcohol |
| C. | wood alcohol |
| D. | denatured alcohol |
| Answer» D. denatured alcohol | |
| 1380. |
What is the chemical name of Westran? |
| A. | sodium acetate |
| B. | acetylene tetrachloride |
| C. | chloroprene |
| D. | sodium bicarbonate |
| Answer» C. chloroprene | |
| 1381. |
Is power alcohol? |
| A. | potable ethyl alcohol |
| B. | pure ethyl alcohol |
| C. | ethyl alcohol used as fuel |
| D. | pure methyl alcohol |
| Answer» D. pure methyl alcohol | |
| 1382. |
Terylene is prepared from tetraphthalic acid and by the reaction of the following. . . |
| A. | xylene |
| B. | Ethylene |
| C. | acetylene |
| D. | Ethylene glycol |
| Answer» E. | |
| 1383. |
When petroleum is heated, the largest amount of vapor is released? |
| A. | kerosene |
| B. | Simojin |
| C. | vaseline |
| D. | Petroleum ether |
| Answer» E. | |
| 1384. |
Which method is used for the purification of aniline? |
| A. | steam discharge |
| B. | partial discharge |
| C. | vacuum discharge |
| D. | sublimation |
| Answer» B. partial discharge | |
| 1385. |
Which of the following acid is present in vinegar? |
| A. | hydrochloric acid |
| B. | citric acid |
| C. | oxalic acid |
| D. | acetic acid |
| Answer» E. | |
| 1386. |
What is used to avoid knocking in the engine of a car? |
| A. | ethyl alcohol |
| B. | butane |
| C. | lead tetraethyl |
| D. | white petrol |
| Answer» D. white petrol | |
| 1387. |
Where does spermato wax come from? |
| A. | from palm leaves |
| B. | in the honeycomb |
| C. | from petroleum |
| D. | from whale |
| Answer» E. | |
| 1388. |
How is oxalic acid used in photography? |
| A. | sodium oxalate |
| B. | ferrous oxalate |
| C. | Diethyl oxalate |
| D. | calcium oxalate |
| Answer» C. Diethyl oxalate | |
| 1389. |
Trinatro Toluene ( TNT ) is a . . . . |
| A. | insecticide |
| B. | insecticide |
| C. | explosives |
| D. | bactericidal |
| Answer» D. bactericidal | |
| 1390. |
Gasohol is a mixture of gasoline and which of the following? |
| A. | ethyl alcohol |
| B. | methyl alcohol |
| C. | butyl alcohol |
| D. | Ethylene glycol |
| Answer» B. methyl alcohol | |
| 1391. |
In the presence of iron catalyst, benzene reacts with chlorine gas to form what? |
| A. | benzene hexachloride |
| B. | Benzyl chloride |
| C. | chlorobenzene |
| D. | benzoic chloride |
| Answer» D. benzoic chloride | |
| 1392. |
If milk is kept uncovered for a long time, the milk becomes sour, it is due to which of the following? |
| A. | lactic acid |
| B. | carbonic acid |
| C. | carbamic acid |
| D. | acetic acid |
| Answer» B. carbonic acid | |
| 1393. |
What is found in tomato sauce? |
| A. | citric acid |
| B. | oxalic acid |
| C. | lactic acid |
| D. | acetic acid |
| Answer» E. | |
| 1394. |
What is the IUPAC of Chloral? |
| A. | ethanol |
| B. | monochloro ethanol |
| C. | dichloro ethanol |
| D. | trichloro ethanol |
| Answer» E. | |
| 1395. |
Paraffin is a byproduct of what? |
| A. | Of petroleum refining |
| B. | of cottage industries engaged in beekeeping |
| C. | leather industry |
| D. | processing of agricultural waste |
| Answer» B. of cottage industries engaged in beekeeping | |
| 1396. |
Chlorotone, used as a medicine to prevent dizziness in mountain travel or sea voyage, is obtained from? |
| A. | from acetic acid |
| B. | from acetaldehyde |
| C. | from formaldehyde |
| D. | with acetone |
| Answer» E. | |
| 1397. |
What is the chemical name of tear gas? |
| A. | acetophenone |
| B. | Benzophenone |
| C. | alpha-bromo acetophenone |
| D. | alpha-chloro acetophenone |
| Answer» E. | |
| 1398. |
What is the wax found in petroleum? |
| A. | carnoba wax |
| B. | jojoba wax |
| C. | paraffin wax |
| D. | Bee wax |
| Answer» D. Bee wax | |
| 1399. |
What is the frequency of methane molecule? |
| A. | Angular |
| B. | planar |
| C. | linear |
| D. | Quadrilateral |
| Answer» E. | |
| 1400. |
Which of the following is a local anesthetic? |
| A. | ether |
| B. | nitrous oxide |
| C. | chloroform |
| D. | ethyl alcohol |
| Answer» B. nitrous oxide | |