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.
| 1501. |
Why does a thin layer of oil appear colored on the surface of water? |
| A. | due to reflection |
| B. | due to interference |
| C. | due to diffraction |
| D. | due to polarization |
| Answer» C. due to diffraction | |
| 1502. |
What does virus mean in Latin? |
| A. | sweet |
| B. | Small |
| C. | liquid |
| D. | poison |
| Answer» E. | |
| 1503. |
Which disease is caused by bacterial infection? |
| A. | chicken pox |
| B. | mumps |
| C. | leprosy |
| D. | asthma |
| Answer» D. asthma | |
| 1504. |
Plants that grow on rocks are called? |
| A. | Epidemiological |
| B. | लवणोद्भिद् |
| C. | Marudbhid |
| D. | Shailodbhid |
| Answer» E. | |
| 1505. |
Which acid is formed during the formation of curd from milk? |
| A. | acetic acid |
| B. | ascorbic acid |
| C. | citric acid |
| D. | lactic acid |
| Answer» E. | |
| 1506. |
Plasmodium is the carrier of the parasite? |
| A. | tick |
| B. | Mosquito |
| C. | fly |
| D. | lice |
| Answer» C. fly | |
| 1507. |
Why do leaves appear green? |
| A. | reflect all characters |
| B. | Reflection of green color and absorption of remaining color |
| C. | no effect of light on leaves |
| D. | Absorption of green foliage only |
| Answer» C. no effect of light on leaves | |
| 1508. |
Which substance has the highest specific energy? |
| A. | Iron |
| B. | copper |
| C. | Mercury |
| D. | Water |
| Answer» E. | |
| 1509. |
Bone is used as manure, because plant element is available in it? |
| A. | nitrogen |
| B. | Phosphorus |
| C. | sodium |
| D. | potassium |
| Answer» C. sodium | |
| 1510. |
A collection of local flora is called? |
| A. | Herbarium |
| B. | Auditorium |
| C. | sanatorium |
| D. | Planetarium |
| Answer» B. Auditorium | |
| 1511. |
Theblue babytheory is due to the presence of excess amount of one of the following in water? |
| A. | Phosphates |
| B. | sulfates |
| C. | carbonates |
| D. | nitrates |
| Answer» E. | |
| 1512. |
What are the types of microscope lenses? |
| A. | Elevation |
| B. | concave |
| C. | concave, concave |
| D. | plane lens |
| Answer» B. concave | |
| 1513. |
Potato is a modified form (product) of? |
| A. | root |
| B. | leaf |
| C. | flower |
| D. | stem |
| Answer» E. | |
| 1514. |
Cause of night blindness? |
| A. | VitaminAdeficiency |
| B. | VitaminBdeficiency |
| C. | Vitamin C deficiency |
| D. | Vitamin D deficiency |
| Answer» B. VitaminBdeficiency | |
| 1515. |
Worldwide H5N1 influenza is called? |
| A. | goat flu |
| B. | Bird flu |
| C. | horse flu |
| D. | cow flu |
| Answer» C. horse flu | |
| 1516. |
What is the function of blood pigment? |
| A. | transport oxygen |
| B. | kill bacteria |
| C. | to treat anemia |
| D. | use energy |
| Answer» B. kill bacteria | |
| 1517. |
What is the structural and functional unit of kidney? |
| A. | urinary canal |
| B. | kidney tubules |
| C. | urinary bladder |
| D. | liver |
| Answer» C. urinary bladder | |
| 1518. |
Which disease is usually spread by fleas? |
| A. | chicken pox |
| B. | tetanus |
| C. | typhus |
| D. | yellow fever |
| Answer» E. | |
| 1519. |
What is the biological clock in humans called? |
| A. | pinium work |
| B. | thymus |
| C. | thyroid |
| D. | hypothalamus |
| Answer» B. thymus | |
| 1520. |
Which was the first artificial satellite? |
| A. | Sputnik - 1 |
| B. | Explorer - 1 |
| C. | Aryabhata |
| D. | Luna - 3 |
| Answer» B. Explorer - 1 | |
| 1521. |
Which alloy is stainless steel? |
| A. | chromium and carbon |
| B. | Chromium, Nickel and Iron |
| C. | Chromium and Iron |
| D. | carbon and iron |
| Answer» C. Chromium and Iron | |
| 1522. |
Insulin secretes the hormone? |
| A. | pancreatic alpha cells |
| B. | beta cells of pituitary |
| C. | beta cells of langerhans dipoles |
| D. | delta cells |
| Answer» D. delta cells | |
| 1523. |
What is the time period of the pendulum of a second? |
| A. | 1 second |
| B. | 2 seconds |
| C. | 0 . 5 seconds |
| D. | 5 seconds |
| Answer» C. 0 . 5 seconds | |
| 1524. |
Image of an object in farsightedness. . . |
| A. | the eye will form behind the retina |
| B. | the eye will form in front of the retina |
| C. | does not reflect |
| D. | will depend on the age of the person |
| Answer» B. the eye will form in front of the retina | |
| 1525. |
What is the average heartbeat of a young person per minute? |
| A. | 60 |
| B. | 72 |
| C. | 84 |
| D. | 96 |
| Answer» C. 84 | |
| 1526. |
In which layer of the atmosphere 90% ozone is found? |
| A. | Troposphere |
| B. | stratosphere |
| C. | ionosphere |
| D. | Meridian |
| Answer» C. ionosphere | |
| 1527. |
Lactose is made from . . . |
| A. | Glucose + Fructose |
| B. | Glucose + Glucose |
| C. | Glucose + galactose |
| D. | Fructose + fructose |
| Answer» D. Fructose + fructose | |
| 1528. |
Pebrin is a disease of which of the following? |
| A. | aphids |
| B. | chicken |
| C. | silkworm |
| D. | honey bee |
| Answer» D. honey bee | |
| 1529. |
What is the contribution of methane to global warming? |
| A. | 60 percent |
| B. | 40 percent |
| C. | 5 percent |
| D. | 20 percent |
| Answer» E. | |
| 1530. |
The part of the body in which the synthesis of vitamin D takes place? |
| A. | liver |
| B. | skin |
| C. | thymus |
| D. | adrenal |
| Answer» C. thymus | |
| 1531. |
What is the reason for the special smell of garlic? |
| A. | chloro component |
| B. | sulfur component |
| C. | fluorine component |
| D. | Acidic Acid |
| Answer» C. fluorine component | |
| 1532. |
Where is Solius muscle disease located? |
| A. | at the bottom of the foot |
| B. | forearm |
| C. | torso |
| D. | upper leg |
| Answer» B. forearm | |
| 1533. |
Select the wrong pair? |
| A. | Dengue fever - thrombocytopenia |
| B. | NS . Mother V - D. N. a . virus |
| C. | Varnandhati - a sexually transmitted disease |
| D. | Pineal What - Inactive Third Eye |
| Answer» C. Varnandhati - a sexually transmitted disease | |
| 1534. |
What is the function of blood pigment (hemoglobin)? |
| A. | transporting oxygen |
| B. | kill bacteria |
| C. | redress |
| D. | use energy |
| Answer» B. kill bacteria | |
| 1535. |
The gastrulation process is complete when . . . |
| A. | arctron gets built |
| B. | all three generative levels become |
| C. | The yolk is spent in the egg |
| D. | Do all the parts become indestructible? |
| Answer» B. all three generative levels become | |
| 1536. |
Where is the National Institute of Communicable Diseases located? |
| A. | in Chennai |
| B. | in Dehradun |
| C. | in New Delhi |
| D. | in Bhubaneshwar |
| Answer» D. in Bhubaneshwar | |
| 1537. |
2 - 4 D happens, one |
| A. | herbicide |
| B. | insecticide |
| C. | Commentary |
| D. | malaria drug |
| Answer» B. insecticide | |
| 1538. |
Which one is always found naturally in nature? |
| A. | Gold |
| B. | silver |
| C. | sodium |
| D. | copper |
| Answer» B. silver | |
| 1539. |
Who conducted experiments on the plant Einothera lamarckiana? |
| A. | Hugo De Breeze |
| B. | lamarck |
| C. | Darwin |
| D. | weedmann |
| Answer» B. lamarck | |
| 1540. |
Not a real fish? |
| A. | silver fish |
| B. | dogfish |
| C. | catfish |
| D. | sea horse |
| Answer» B. dogfish | |
| 1541. |
What will be the weight of an object on the Moon compared to the Earth? |
| A. | half |
| B. | 6 times less |
| C. | double |
| D. | 6 times more |
| Answer» C. double | |
| 1542. |
The body covering of liver fluke is called? |
| A. | Pelical |
| B. | tegmentus |
| C. | cellular epidermis |
| D. | tegument |
| Answer» B. tegmentus | |
| 1543. |
According to Calvin-Benson cycle, the first product collected during photosynthesis is? |
| A. | phosphoglyceraldehyde |
| B. | phosphoglyceric acid |
| C. | oxaloacetic acid |
| D. | xylose phosphate |
| Answer» C. oxaloacetic acid | |
| 1544. |
Which isomerism is not possible in diylkylamine compounds? |
| A. | series isomerism |
| B. | maneuverability |
| C. | position isomerism |
| D. | mediocrity |
| Answer» C. position isomerism | |
| 1545. |
Which gas is used in the manufacture of vegetable ghee? is he? |
| A. | oxygen |
| B. | nitrogen |
| C. | hydrogen |
| D. | CO₂ |
| Answer» D. CO₂ | |
| 1546. |
What is the correct sequence of different stages in the life cycle of malaria parasite? |
| A. | oocyte, zygote, sporozoite, oocyst |
| B. | zygote, oocyte, oocyst, sporozoite |
| C. | zygote, oocyte, sporozoite, oocyst |
| D. | oocyte, zygote, oocyst, sporozoite |
| Answer» C. zygote, oocyte, sporozoite, oocyst | |
| 1547. |
If the power of the specified lens is 2.0 f , this means that . . . |
| A. | The fixed lens is convex and its lens is convex and its focal length is +0. is 50m. |
| B. | The fixed lens is concave and its lens is convex and its focal length is +0. is 50m. |
| C. | The fixed lens is concave and its lens is convex and its focal length is +2. is 00m. |
| D. | The fixed lens is convex and its lens is convex and its focal length is +2. is 00m. |
| Answer» B. The fixed lens is concave and its lens is convex and its focal length is +0. is 50m. | |
| 1548. |
Which of the following is added to natural rubber to make it stronger and more elastic? |
| A. | Sulphur |
| B. | Platinum |
| C. | Nickel |
| D. | alumina |
| Answer» B. Platinum | |
| 1549. |
Which acid is considered abasic chemicalin the chemical industry? |
| A. | H₂CO₃ |
| B. | HNO₃ |
| C. | H₂SO₄ |
| D. | HCl |
| Answer» D. HCl | |
| 1550. |
Which of the following is the first satellite of India? |
| A. | Apple |
| B. | sputnik |
| C. | Aryabhata |
| D. | Apollo |
| Answer» D. Apollo | |