MCQOPTIONS
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MCQOPTIONS
This section includes 674 Mcqs, each offering curated multiple-choice questions to sharpen your Joint Entrance Exam - Main (JEE Main) knowledge and support exam preparation. Choose a topic below to get started.
| 451. |
Q: Ozone hole refers to |
| A. | Decrease in the thickness of ozone layer in Stratosphere |
| B. | Increase in thickness of ozone layer |
| C. | Decrease in the ozone layer in Troposphere |
| D. | Hole in the ozone layer |
| Answer» B. Increase in thickness of ozone layer | |
| 452. |
Q: Oxidation Number of 'S' in H2SO4? |
| A. | 6 |
| B. | 2 |
| C. | -6 |
| D. | -2 |
| Answer» B. 2 | |
| 453. |
Q: Oxygen in our blood is transported by a protein named |
| A. | keratin |
| B. | myoglobi |
| C. | collagen |
| D. | haemoglobin |
| Answer» E. | |
| 454. |
Q: Oscar Awards are conferred annually by |
| A. | Academy of Motion Pictures, arts and sciences, USA |
| B. | Hollywood Foreign Press Association |
| C. | Government of United States |
| D. | None |
| Answer» B. Hollywood Foreign Press Association | |
| 455. |
Q: Only movable bone in the skull |
| A. | Occipital bone |
| B. | Frontal bone |
| C. | Mandible |
| D. | Temporal bone |
| Answer» D. Temporal bone | |
| 456. |
Q: Online functional learning portals are accessed through the |
| A. | Web portal |
| B. | Interactive Multimedia Instruction |
| C. | Instructor Facilitated New Equipment |
| D. | All the above |
| Answer» B. Interactive Multimedia Instruction | |
| 457. |
Q: Onion Eating Festival is celebrated in which country ? |
| A. | Sweden |
| B. | Thailand |
| C. | New Delhi |
| D. | Spain |
| Answer» E. | |
| 458. |
Q: On a bank reconciliation, deposits in transit are |
| A. | added to the book balance |
| B. | added to the bank balance |
| C. | deducted from the book balance |
| D. | None of the above |
| Answer» C. deducted from the book balance | |
| 459. |
Q: Old name of Mahabharata? |
| A. | Jai Samhitha |
| B. | Vrahat Katha |
| C. | Rajatarangini |
| D. | Saritsagar Katha |
| Answer» B. Vrahat Katha | |
| 460. |
Q: Off-duty risk decisions are |
| A. | Dictated by the Department of the Army |
| B. | The responsibility of individual Soldiers |
| C. | Made by leaders and commanders |
| D. | Not a consideration |
| Answer» C. Made by leaders and commanders | |
| 461. |
Q: Nucleotides are attached by bonds between the |
| A. | phosphates and sugars |
| B. | nitrates and sugars |
| C. | nitrates and phosphates |
| D. | sugars and hydrates |
| Answer» B. nitrates and sugars | |
| 462. |
Q: Nucleotides are made of a pentose only. |
| A. | 1 |
| B. | 0 |
| Answer» C. | |
| 463. |
Q: Nucleic acids are polymers of |
| A. | Nucleotides |
| B. | Aminoacids |
| C. | Proteins |
| D. | Sugars |
| Answer» B. Aminoacids | |
| 464. |
Q: Nucleoli are present during |
| A. | prophase |
| B. | anaphase |
| C. | interphase |
| D. | prometaphase |
| Answer» D. prometaphase | |
| 465. |
Q: Nuclear Fission is caused by the impact of |
| A. | Electron |
| B. | Neutron |
| C. | Proton |
| D. | Deutron |
| Answer» C. Proton | |
| 466. |
Q: Now my value becomes ? |
| A. | 5 |
| B. | 10 |
| C. | 15 |
| D. | 12 |
| Answer» C. 15 | |
| 467. |
Q: Nitrogenous bases in DNA and RNA? |
| A. | Adenine |
| B. | Cytosine |
| C. | Guanine |
| D. | All the above |
| Answer» E. | |
| 468. |
Q: Natural Rubber is a Polymer of |
| A. | butadiene |
| B. | 2methyl-1,3butadiene |
| C. | ethylene |
| D. | isoprene |
| Answer» E. | |
| 469. |
Q: National Statistics day observed every year on |
| A. | 2021-10-20 00:00:00 |
| B. | 2021-07-20 00:00:00 |
| C. | 2021-06-29 00:00:00 |
| D. | 2021-09-21 00:00:00 |
| Answer» D. 2021-09-21 00:00:00 | |
| 470. |
Q: Name the Indian player who was chosen by the Indian Olympic Association (IO |
| A. | as the flag-bearer of the Indian contingent for the opening ceremony of the Gold Coast Commonwealth Games. A) P V Sindhu |
| B. | Deepa Karmakar |
| C. | Saina Nehwal |
| D. | P V Sindhu B) Deepa Karmakar C) Saina Nehwal D) |
| Answer» B. Deepa Karmakar | |
| 471. |
Q: Name an eminent cartoonist who created the comic book character like Chacha Chaudary and Sabu who died in 2014 ? |
| A. | Angela Nemeth |
| B. | Pran Kumar Sharma |
| C. | Madhukar Singh |
| D. | DP Yadav |
| Answer» C. Madhukar Singh | |
| 472. |
Q: MS-EXCEL is based on |
| A. | OS/2 |
| B. | UNIX |
| C. | WINDOWS |
| D. | DOS |
| Answer» D. DOS | |
| 473. |
Q: Movement of cell against concentration gradient is called |
| A. | active transport |
| B. | diffusion |
| C. | osmosis |
| D. | passive transport |
| Answer» B. diffusion | |
| 474. |
Q: Moti Masjid in Red fort was constructed by |
| A. | Humayun |
| B. | Aurangzeb |
| C. | Akbar |
| D. | Jahangir |
| Answer» C. Akbar | |
| 475. |
Q: Most important weather phenomena occur in the |
| A. | Troposphere |
| B. | Stratosphere |
| C. | Ionosphere |
| D. | Thermosphere |
| Answer» E. | |
| 476. |
Q: Most Explosive Type of Volcano is |
| A. | The Cinder Cone |
| B. | Rhyolite caldera complexes |
| C. | Shield Volcanoes |
| D. | The Basault Volcanoes |
| Answer» C. Shield Volcanoes | |
| 477. |
Q: Most bacteria reproduce by |
| A. | budding |
| B. | binary fission |
| C. | fragmentation |
| D. | mitosis |
| Answer» C. fragmentation | |
| 478. |
Q: Most abundant tissue in the body |
| A. | Connective |
| B. | Nervous |
| C. | Muscular |
| D. | Epithelial |
| Answer» B. Nervous | |
| 479. |
Q: Monoculture is a typical characteristics of |
| A. | Specialized horticulture |
| B. | Commercial grain farming |
| C. | Shifting cultivation |
| D. | Subsitence farming |
| Answer» C. Shifting cultivation | |
| 480. |
Q: MONEX is associated with |
| A. | Monetary experiment |
| B. | Lunar experiment |
| C. | Montreal experiment |
| D. | Monsoon experiment |
| Answer» E. | |
| 481. |
Q: Modem is used mostly for ? |
| A. | A modern empty memory modules |
| B. | Connecting to internet |
| C. | Mostly for file system |
| D. | All the above |
| Answer» C. Mostly for file system | |
| 482. |
Q: Missing Slot Covers on a Computer can cause |
| A. | Power Surges |
| B. | Incomplete Path of ESD |
| C. | Over Haeat |
| D. | EMI |
| Answer» D. EMI | |
| 483. |
Q: Mg+O2=MgO Balance the above Chemical equation? |
| A. | 2Mg + O2 ----> 2MgO |
| B. | 2Mg + O ----> 2MgO |
| C. | 2Mg + O ----> MgO2 |
| D. | 2Mg + O2 ----> MgO2 |
| Answer» B. 2Mg + O ----> 2MgO | |
| 484. |
Q: Merge cells option can be applied from? |
| A. | Format Cells dialog box Alignment Tab |
| B. | Formatting toolbar |
| C. | Both of above |
| D. | None of above |
| Answer» B. Formatting toolbar | |
| 485. |
Q: Maximum fixation of solar energy is done by |
| A. | Fungi |
| B. | Protozoa |
| C. | Bacteria |
| D. | Green plants |
| Answer» E. | |
| 486. |
Q: Malleability and Ductility of metals can be accounted due to |
| A. | the crystalline structure in metal |
| B. | the interaction of electrons with metal ions in the lattice |
| C. | the presence of electrostatic force |
| D. | the capacity of layers of metal ions to slide over the other |
| Answer» E. | |
| 487. |
Q: Majid Gyre is a feature of which of the following Oceans ? |
| A. | Indian Ocean |
| B. | Pacific Ocean |
| C. | Atlantic Ocean |
| D. | Arctic Ocean |
| Answer» B. Pacific Ocean | |
| 488. |
Q: Mahaparinirvana Temple is located at ______. |
| A. | Bodh Gaya |
| B. | Shravasti |
| C. | Sarnath |
| D. | Kushinagar |
| Answer» E. | |
| 489. |
Q: Lux is the SI unit of |
| A. | luminous flux |
| B. | luminous efficiency |
| C. | intensity of illumination |
| D. | luminous intensity |
| Answer» D. luminous intensity | |
| 490. |
Q: Lime is sometimes applied to soil in order to |
| A. | increase the acidity of the soil |
| B. | make the soil more porous |
| C. | restore nitrates to the soil |
| D. | increase the alkalinity of the soil |
| Answer» E. | |
| 491. |
Q: Leukorrhea may be associated with |
| A. | Cervicitis |
| B. | Ovarian Cysts |
| C. | Eclampsia |
| D. | Menorrhagia |
| Answer» B. Ovarian Cysts | |
| 492. |
Q: Leakage of which of the following gases caused the Bhopal gas tragedy ? |
| A. | Carbon monoxide |
| B. | Methyl isocyanate |
| C. | Nitrous oxide |
| D. | Hydrogen sulphide |
| Answer» C. Nitrous oxide | |
| 493. |
Q: Kargil Fight held in |
| A. | 1979 |
| B. | 1989 |
| C. | 1999 |
| D. | 1969 |
| Answer» D. 1969 | |
| 494. |
Q: IUPAC full form |
| A. | Indian Union of Pure and Applied Chemistry |
| B. | International Union of Postal and Application Corporation |
| C. | International Union of Pure and Applied Chemistry |
| D. | International University of Poland And Combodia |
| Answer» D. International University of Poland And Combodia | |
| 495. |
Q: Is water a Pure substance? |
| A. | 1 |
| B. | FALSE Answer & Explanation Answer: |
| Answer» B. FALSE Answer & Explanation Answer: | |
| 496. |
Q: Is steel a compound? |
| A. | 1 |
| B. | 0 |
| Answer» C. | |
| 497. |
Q: Is MS Word an operating system? |
| A. | 1 |
| B. | 0 |
| Answer» C. | |
| 498. |
Q: Is Air a Mixture? |
| A. | 1 |
| B. | FALSE Answer & Explanation Answer: |
| Answer» B. FALSE Answer & Explanation Answer: | |
| 499. |
Q: IPR stands for |
| A. | Intellectual Property Rights |
| B. | International Property Rights |
| C. | International Postgraduate Research |
| D. | Indian Property Rights |
| Answer» B. International Property Rights | |
| 500. |
Q: International Workers' Day or Labour Day is celebrated on ? |
| A. | April 1st |
| B. | May 1st |
| C. | June 1st |
| D. | July 1st |
| Answer» C. June 1st | |