MCQOPTIONS
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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.
| 1451. |
What is the reason for the color of thin soap bubbles? |
| A. | Frequency |
| B. | scatter |
| C. | interference |
| D. | withdrawal |
| Answer» D. withdrawal | |
| 1452. |
What is a water soluble vitamin? |
| A. | a and d |
| B. | D, K and E |
| C. | b and k |
| D. | b and c |
| Answer» E. | |
| 1453. |
Which thing is not destroyed by bacteria? |
| A. | cow-dung |
| B. | leaves of plants |
| C. | food |
| D. | plastic |
| Answer» E. | |
| 1454. |
Soybeans contain large amounts of? |
| A. | minerals |
| B. | Proteins |
| C. | Carbohydrates |
| D. | Vitamins |
| Answer» C. Carbohydrates | |
| 1455. |
Why do objects appear to move when viewed through smoke? |
| A. | refraction |
| B. | reflection |
| C. | Full internal reflection |
| D. | scatter |
| Answer» B. reflection | |
| 1456. |
A lunar eclipse occurs when. . . |
| A. | the sun is between the earth and the moon |
| B. | the moon is between the sun and the earth |
| C. | earth is between the sun and the moon |
| D. | None of these |
| Answer» D. None of these | |
| 1457. |
What should be the properties of a fuse wire? |
| A. | high melting point |
| B. | low resistance |
| C. | low network |
| D. | high resistance |
| Answer» E. | |
| 1458. |
Which of the following is a good moderator? |
| A. | cadmium |
| B. | graphite |
| C. | helium |
| D. | plain water |
| Answer» C. helium | |
| 1459. |
Which animal is man's friend? |
| A. | Rat |
| B. | earthworm |
| C. | Zingur |
| D. | Squirrel |
| Answer» C. Zingur | |
| 1460. |
Deficiency of which vitamin causes slow clotting of blood? |
| A. | vitamin C |
| B. | vitamin D |
| C. | Vitamin E |
| D. | Vitamin K |
| Answer» E. | |
| 1461. |
Which disease is caused due to lack of iron in the body? |
| A. | Rickets |
| B. | Anemia |
| C. | scurvy |
| D. | Hemorrhage |
| Answer» C. scurvy | |
| 1462. |
In a color television, colors are formed by mixing three basic colors, these are? |
| A. | red, blue and orange |
| B. | red, green and blue |
| C. | red, yellow and green |
| D. | red, green and brown |
| Answer» C. red, yellow and green | |
| 1463. |
What is Hemoglobin? |
| A. | plant matter |
| B. | bone marrow |
| C. | substance found in human blood |
| D. | pituitary gland secretion |
| Answer» D. pituitary gland secretion | |
| 1464. |
If the distance between the Sun and the Earth is reduced by one-fourth, what will most likely happen? |
| A. | the earth will fall into the sun |
| B. | the earth will burn to ashes |
| C. | the duration of our year will be shortened |
| D. | earth will fly into space |
| Answer» D. earth will fly into space | |
| 1465. |
What happens if there is a malfunction in the pancreas? |
| A. | Digestion will not work properly |
| B. | Insulin and glucamone will not be made |
| C. | Blood production will stop |
| D. | blood pressure will rise |
| Answer» C. Blood production will stop | |
| 1466. |
Have food to eat? |
| A. | sodium carbonate |
| B. | sodium bicarbonate |
| C. | Sodium sulphate |
| D. | sodium hydroxide |
| Answer» C. Sodium sulphate | |
| 1467. |
What is the escape velocity of the earth? |
| A. | 15. 0 Km / s |
| B. | 21. 1 Km / s |
| C. | 7. 0 Km / s |
| D. | 11. 2 Km / s |
| Answer» E. | |
| 1468. |
What class of animal is a whale? |
| A. | fish |
| B. | mammal |
| C. | Reptiles |
| D. | amphibian |
| Answer» C. Reptiles | |
| 1469. |
What is the name of the method of creating a shadow image in three dimensions with the help of a laser beam? |
| A. | holography |
| B. | Xerography |
| C. | videography |
| D. | audiography |
| Answer» B. Xerography | |
| 1470. |
Which disease is caused by insect bite? |
| A. | scurvy |
| B. | Dengue |
| C. | pneumoniae |
| D. | asthma |
| Answer» C. pneumoniae | |
| 1471. |
What isMorphinederived from? |
| A. | flower |
| B. | leaf |
| C. | root |
| D. | stem |
| Answer» D. stem | |
| 1472. |
Which class of food has the highest amount of calories per unit? |
| A. | in vitamins |
| B. | in fat |
| C. | in carbohydrates |
| D. | in protein |
| Answer» C. in carbohydrates | |
| 1473. |
The stem of ginger which grows in the soil and stores food is called |
| A. | tubers |
| B. | rhizome |
| C. | Ribofour |
| D. | cubed |
| Answer» C. Ribofour | |
| 1474. |
What is the main use of sweat? |
| A. | controlling body temperature |
| B. | balance the amount of water in the body |
| C. | to remove toxins from the body |
| D. | pore removal |
| Answer» B. balance the amount of water in the body | |
| 1475. |
Spider is different from insect because spider is found in? |
| A. | six legs |
| B. | eight legs |
| C. | ten legs |
| D. | twelve legs |
| Answer» C. ten legs | |
| 1476. |
What is the correct sequence of colors in Indra Dhanush? |
| A. | blue, green, purple |
| B. | purple, green, blue |
| C. | blue, yellow, green |
| D. | blue, green, yellow |
| Answer» E. | |
| 1477. |
Apiculture is a scientific method, which is related to the production of? |
| A. | of honey |
| B. | of silk |
| C. | to save |
| D. | of lakhs |
| Answer» B. of silk | |
| 1478. |
Measles disease? |
| A. | from virus |
| B. | from fungus |
| C. | from bacteria |
| D. | from mycoplasma |
| Answer» B. from fungus | |
| 1479. |
Lichens are sugary organisms, which are made of? |
| A. | fungi and bacteria |
| B. | from fungi and algae |
| C. | Fungi and Bryophyta |
| D. | from algae and bacteria |
| Answer» C. Fungi and Bryophyta | |
| 1480. |
Which of the following is used to fill balloons? |
| A. | oxygen |
| B. | carbon dioxide |
| C. | methane |
| D. | helium |
| Answer» E. | |
| 1481. |
Quinine, which is a major drug for malaria, is obtained from? |
| A. | from angiosperms |
| B. | from bacteria |
| C. | from yeast |
| D. | from algae |
| Answer» D. from algae | |
| 1482. |
Ethine is made unfit for drinking by mixing the following in alcohol? |
| A. | potassium cyanide |
| B. | methanol and pyridine |
| C. | acetic acid and pyridine |
| D. | naphthalene |
| Answer» C. acetic acid and pyridine | |
| 1483. |
The light yellow color of cow's milk is due to the presence of |
| A. | xanthophyll |
| B. | Riboflavin |
| C. | Vitamin 12 |
| D. | Carotene |
| Answer» E. | |
| 1484. |
Cloves obtained? |
| A. | from the root |
| B. | from the stem |
| C. | from fruit |
| D. | from flower buds |
| Answer» E. | |
| 1485. |
Which part of the human body is affected in Alzheimer's disease? |
| A. | ear |
| B. | Brain |
| C. | eye |
| D. | stomach |
| Answer» C. eye | |
| 1486. |
Thyroxine is the iodine-containing hormone? |
| A. | a sugar |
| B. | an amino acid |
| C. | an ester |
| D. | a peptide |
| Answer» C. an ester | |
| 1487. |
Which of the following diet provides nutrients for the growth of new tissues in the human body? |
| A. | fruit |
| B. | Vegetables |
| C. | cheese |
| D. | Sweet |
| Answer» D. Sweet | |
| 1488. |
Which of the following is an example of a chemical change? |
| A. | splitting of white light into seven colors when it passes through a prism |
| B. | softening of vegetables when they are cooked |
| C. | dry clay |
| D. | dissolving salt in water |
| Answer» C. dry clay | |
| 1489. |
If a liquid rises to a higher height than water in a capillary, it is because of this? |
| A. | is more viscous than liquid water |
| B. | The temperature of a liquid is higher than that of water |
| C. | Surface tension of liquid is less than that of water |
| D. | The surface tension of a liquid is higher than that of water. |
| Answer» E. | |
| 1490. |
If a 60 watt bulb is used for 5 hours a day, how many units of electricity will be spent in 30 days? |
| A. | 12 |
| B. | 9 |
| C. | 6 |
| D. | 3 |
| Answer» C. 6 | |
| 1491. |
By what process can sea water be converted into pure water? |
| A. | complaint |
| B. | effusion |
| C. | electrical separation |
| D. | reverse osmosis |
| Answer» E. | |
| 1492. |
Which branch of physics deals with the study of the motion of very fine particles? |
| A. | field theory |
| B. | particle physics |
| C. | quantum mechanics |
| D. | atomic physics |
| Answer» D. atomic physics | |
| 1493. |
Which of the following diseases cannot be cured by antibiotics? |
| A. | leprosy |
| B. | tetanus |
| C. | measles measles |
| D. | cholera |
| Answer» D. cholera | |
| 1494. |
In the state of weightlessness, the shape of a candle flame will be |
| A. | longer |
| B. | more little |
| C. | round shape |
| D. | will remain the same |
| Answer» E. | |
| 1495. |
Which of the following is used in the synthesis of polyethylene? |
| A. | methane |
| B. | athene |
| C. | propane |
| D. | butane |
| Answer» C. propane | |
| 1496. |
Which hormone is secreted, which increases the heart rate and gives a feeling of excitement? |
| A. | cortisone |
| B. | insulin |
| C. | adrenaline |
| D. | testosterone |
| Answer» D. testosterone | |
| 1497. |
The poison used to kill rats is? |
| A. | calcium phosphide |
| B. | zinc phosphide |
| C. | magnesium nitride |
| D. | magnesium phosphide |
| Answer» C. magnesium nitride | |
| 1498. |
Through which does the newly hatched tadpole breathe from the egg? |
| A. | from the lungs |
| B. | from the outer gills |
| C. | from the inner gills |
| D. | from all of the above |
| Answer» C. from the inner gills | |
| 1499. |
When a person moves from a bright light area to a dark room, he cannot see clearly for some time, later gradually he starts seeing things because of this? |
| A. | change in pupil size |
| B. | Change in lens diameter and focus distance |
| C. | bleaching and recrystallization of rhodopsin |
| D. | dark-adaptation |
| Answer» E. | |
| 1500. |
What are the rings of Saturn made of? |
| A. | gases and clouds |
| B. | large pieces of ice and rock |
| C. | wind and storm |
| D. | Satellite |
| Answer» C. wind and storm | |