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.
| 1401. |
Which element is commonly found in organic compound other than hydrogen? |
| A. | Carbon |
| B. | nitrogen |
| C. | sulfur |
| D. | Phosphorus |
| Answer» B. nitrogen | |
| 1402. |
The reaction of ethylene with alkaline and cold solution of potassium permanganate is obtained? |
| A. | acetic acid |
| B. | formic acid |
| C. | Ethylene glycol |
| D. | glycerol |
| Answer» D. glycerol | |
| 1403. |
Which statement is correct about methane? |
| A. | It originates from the bacterial dissection of the flora and fauna buried below in marshy places. |
| B. | It is the first member of the saturated hydrocarbon class. |
| C. | It is also called marsh gas. |
| D. | All of the above. |
| Answer» E. | |
| 1404. |
Methane gas is made in the laboratory? |
| A. | by heating sodium with sodalime |
| B. | By heating sodium propionate with soda lime |
| C. | by heating sodium benzoate with sodalime |
| D. | none of these |
| Answer» B. By heating sodium propionate with soda lime | |
| 1405. |
What is homogeneous mixture in petroleum? |
| A. | of carbonates |
| B. | of carbohydrates |
| C. | of hydrocarbons |
| D. | none of these |
| Answer» D. none of these | |
| 1406. |
Is it really plastic? |
| A. | Complex Compounds of Saturated Hydrocarbons |
| B. | High polymers of unsaturated hydrocarbons |
| C. | isomers of unsaturated hydrocarbons |
| D. | an inorganic complex compound |
| Answer» C. isomers of unsaturated hydrocarbons | |
| 1407. |
D . D . T. What's the full name? |
| A. | Dichloro Diphenyl Trichloro Methane |
| B. | Dichloro diphenyl trichloro ethane |
| C. | Dichloro dibenzyl trichloro ethane |
| D. | dichloro dibenzyl trichloro methane |
| Answer» C. Dichloro dibenzyl trichloro ethane | |
| 1408. |
Filll one. . . . . . . . . . . . . . . . . is compound? |
| A. | aliphatic |
| B. | aromatic |
| C. | allycyclic |
| D. | asymmetrical |
| Answer» C. allycyclic | |
| 1409. |
Molasses is the best raw material? |
| A. | for acetic acid |
| B. | for glycerin |
| C. | for power alcohol |
| D. | for urea |
| Answer» B. for glycerin | |
| 1410. |
Gamexin is a - |
| A. | disinfectant |
| B. | fungicide |
| C. | disgraceful |
| D. | pesticide |
| Answer» B. fungicide | |
| 1411. |
Which petroleum company has launched a high quality petrol namedSpeedin the market? |
| A. | Bharat Petroleum |
| B. | Indian Oil |
| C. | Hindustan Petroleum |
| D. | shell |
| Answer» B. Indian Oil | |
| 1412. |
The group that gives chemical properties to an organic compound is called? |
| A. | functional group |
| B. | functional group |
| C. | indifferent group |
| D. | passive group |
| Answer» B. functional group | |
| 1413. |
Which of the following is understood? |
| A. | CH and C₂H |
| B. | C₂H and C₆H |
| C. | C₂H₅OH एवं CH₃OCH₃ |
| D. | CH and C₂H |
| Answer» E. | |
| 1414. |
According to Cheadle, the xylem vessels first originated in? |
| A. | in the roots |
| B. | in columns |
| C. | in Rixia |
| D. | in festivals |
| Answer» C. in Rixia | |
| 1415. |
Which of the following organisms is required in the process ofBiotechnologyof curd making since ancient times? |
| A. | bacteria |
| B. | Virus |
| C. | fungus |
| D. | protozoa |
| Answer» B. Virus | |
| 1416. |
TheRaman Effectis developed using? |
| A. | sunglasses |
| B. | Space ship |
| C. | Atom bomb |
| D. | spy probe |
| Answer» B. Space ship | |
| 1417. |
What is consumer level energy storage called? |
| A. | gross primary productivity |
| B. | secondary productivity |
| C. | net primary productivity |
| D. | net productivity |
| Answer» C. net primary productivity | |
| 1418. |
The chromosomes found in the salivary glands of dipterin larvae are called? |
| A. | lampbrush chromosome |
| B. | supernumerary chromosome |
| C. | polytene chromosome |
| D. | beta chromosome |
| Answer» D. beta chromosome | |
| 1419. |
The term PVC used in the plastics industry refers to? |
| A. | poly vinyl carbonate |
| B. | polyvinyl chloride |
| C. | phospho vinyl chloride |
| D. | mercury vinyl chlorobenzene |
| Answer» C. phospho vinyl chloride | |
| 1420. |
In those alcohol tragedies that result in blindness etc., is the substance harmful? |
| A. | ethyl alcohol |
| B. | methyl alcohol |
| C. | amyl alcohol |
| D. | Benzyl alcohol |
| Answer» C. amyl alcohol | |
| 1421. |
Used to make medicine? |
| A. | benzoic acid |
| B. | picric acid |
| C. | oxalic acid |
| D. | citric acid |
| Answer» B. picric acid | |
| 1422. |
What is the first synthetic biochemistry in the laboratory? |
| A. | citric acid |
| B. | oxalic acid |
| C. | urea |
| D. | phosphoric acid |
| Answer» D. phosphoric acid | |
| 1423. |
The smallest unit of DNA which is capable of recombination is called? |
| A. | cistron |
| B. | Mutton |
| C. | Recon |
| D. | allele |
| Answer» D. allele | |
| 1424. |
Red ants are found in? |
| A. | acetic acid |
| B. | benzoic acid |
| C. | formic acid |
| D. | sulfuric acid |
| Answer» D. sulfuric acid | |
| 1425. |
Archeopteryx represents? |
| A. | Evolution of Memels from Aves |
| B. | Evolution of Reptilia from Amoebae |
| C. | Evolution of Aves from Reptilia |
| D. | Development of Reptilia from Aives |
| Answer» E. | |
| 1426. |
Neoteny is found in? |
| A. | in axolotl |
| B. | in platypus |
| C. | in the trochophore |
| D. | in Scoliodon |
| Answer» B. in platypus | |
| 1427. |
Organic food is considered better for us because they . . |
| A. | Depends on chemicals for delicious taste. |
| B. | Expensive to buy. |
| C. | Grown in glasshouses to be kept free from environmental contaminants |
| D. | Grown without using artificial fertilizers and pesticides |
| Answer» E. | |
| 1428. |
Which of the following are major greenhouse gases? |
| A. | Carbon dioxide |
| B. | chlorofluorocarbons |
| C. | carbon monoxide |
| D. | Freon |
| Answer» B. chlorofluorocarbons | |
| 1429. |
Helium gas is used in gas balloons instead of hydrogen gas, because it is . . . . |
| A. | lighter than hydrogen. |
| B. | It is found in greater abundance than hydrogen. |
| C. | is payable. |
| D. | is more permanent. |
| Answer» D. is more permanent. | |
| 1430. |
Is it tear gas? |
| A. | ammonia |
| B. | chlorine |
| C. | hydrogen carbide |
| D. | hydrogen sulfide |
| Answer» B. chlorine | |
| 1431. |
Which catalyst is used in the production of ammonia by Haber's method? |
| A. | Iron |
| B. | Platinum |
| C. | Nickel |
| D. | alumina |
| Answer» B. Platinum | |
| 1432. |
Noble gases are inert because . . . . |
| A. | their electronic configuration is stable |
| B. | their ionization potential is high |
| C. | both of the above |
| D. | none of the above |
| Answer» D. none of the above | |
| 1433. |
When there is more of which in the air, the leaves of the trees turn black and fall? |
| A. | CO₂ |
| B. | SO₂ |
| C. | CO |
| D. | NH₃ |
| Answer» C. CO | |
| 1434. |
It is used to revive the colors of old oil paintings. |
| A. | sulfuric acid |
| B. | chlorofluorocarbons |
| C. | hydrogen peroxide |
| D. | Freon |
| Answer» D. Freon | |
| 1435. |
An unknown gas dissolves rapidly in water. Red litmus turns blue in aqueous solution containing gases. This gas also gives white fumes with hydrogen chloride. Is this an unknown gas? |
| A. | SO₂ |
| B. | NO |
| C. | NH₃ |
| D. | CO |
| Answer» D. CO | |
| 1436. |
Which vitamin helps in blood coagulation? |
| A. | a |
| B. | D |
| C. | b |
| D. | of |
| Answer» E. | |
| 1437. |
Sometimes it is felt that when boiling water is poured into the thermos, the glass gets cracked because - |
| A. | Glass heats up easily |
| B. | Boiling fluid exerts more pressure |
| C. | glass is a bad conductor of heat |
| D. | Because glass is not a metal by nature |
| Answer» C. glass is a bad conductor of heat | |
| 1438. |
Which component is an abnormal component of urine? |
| A. | creatinine |
| B. | urea |
| C. | uric acid |
| D. | ketone bodies |
| Answer» E. | |
| 1439. |
The milk teeth of three-four-year-old children do not have? |
| A. | molar |
| B. | premolar |
| C. | Incisors |
| D. | canines |
| Answer» D. canines | |
| 1440. |
What is oxygen gas by nature? |
| A. | electropositive |
| B. | electronegative |
| C. | Moody |
| D. | None of these |
| Answer» C. Moody | |
| 1441. |
Which of the following is used for dating archaeological discoveries? |
| A. | ₉₂U²³⁵ |
| B. | ₆C¹⁴ |
| C. | 1H₃ |
| D. | 8O₁₈ |
| Answer» C. 1H₃ | |
| 1442. |
Which cell produces antibodies? |
| A. | Eosinophils |
| B. | Monocyte |
| C. | alkaline (basophils) |
| D. | Lymphocyte |
| Answer» E. | |
| 1443. |
Cholera is caused by which bacterium? |
| A. | protozoa |
| B. | virus |
| C. | bacteria |
| D. | fungus |
| Answer» D. fungus | |
| 1444. |
Because of night blindness. . . . lack? |
| A. | glucose |
| B. | Vitamin A |
| C. | Vitamin K |
| D. | vitamin D |
| Answer» C. Vitamin K | |
| 1445. |
eri-beridisease is caused by the deficiency of? |
| A. | Iodine |
| B. | Iron |
| C. | Vitamin B |
| D. | calcium |
| Answer» D. calcium | |
| 1446. |
Do stunted plants grow? |
| A. | on the plane |
| B. | on the river |
| C. | on the mountain |
| D. | in the desert |
| Answer» E. | |
| 1447. |
Which is the fat containing vitamin? |
| A. | vitamin C |
| B. | thiamine |
| C. | Vitamin E |
| D. | Riboflavin |
| Answer» E. | |
| 1448. |
While climbing a mountain, a person leans forward because . . . . |
| A. | reduce fatigue |
| B. | to strike a balance |
| C. | to avoid slipping |
| D. | to speed up |
| Answer» C. to avoid slipping | |
| 1449. |
Does the liquid evaporate? |
| A. | at all temperatures |
| B. | at boiling point |
| C. | at boiling point at a certain temperature |
| D. | above boiling point at a certain temperature |
| Answer» C. at boiling point at a certain temperature | |
| 1450. |
What is the cause of anemia? |
| A. | potassium |
| B. | calcium |
| C. | Iron |
| D. | sodium |
| Answer» D. sodium | |