570+ General Science Solved MCQs

Chapters

Chapter: Chemistry
301.

Calamine lotion which is used as an antipruritic (anti-itching agent) to treat mild pruritic conditions contains which of the following?

A. Zinc
B. Calcium
C. Magnesium
D. Sodium
Answer» A. Zinc
302.

In which of the following Mercury is a constituent?

A. Cinnabar
B. Chile saltpeter
C. Calamine
D. Gold
Answer» A. Cinnabar
303.

Adsorption is used commonly in which of the following processes?

A. Purification of solids
B. Purification of liquids
C. Making scrubbers
D. Chromatography
Answer» D. Chromatography
304.

Which among the following is a correct definition of Cyclotron?

A. Accelerator of charged atomic particles
B. Device for detection of High Energy atomic radiation
C. Device for storing electric charge
D. Device for storing heat
Answer» A. Accelerator of charged atomic particles
305.

The Chemical formula of Graphite is _________?

A. C
B. C2
C. C4
D. C6
Answer» A. C
306.

Which among the following is true about solubility of ―Lipids‖?

A. They are soluble in water but insoluble in organic solvents
B. They are insoluble in water but soluble in organic solvents
C. They are soluble in water as well as organic solvents
D. They are insoluble in water as well as organic solvents
Answer» B. They are insoluble in water but soluble in organic solvents
307.

Calcium Magnesium Silicate is commonly called as ________?

A. Asbestos
B. Borax
C. Baking Soda
D. Washing Soda
Answer» A. Asbestos
308.

Phenolphthalein is used in chemistry as a ______?

A. Solvent
B. Dye
C. Catalyst
D. Detergent
Answer» B. Dye
309.

Reserpine is an example of which kind of drug?

A. Narcotic
B. Anti-histamine
C. Tranquillizer
D. None
Answer» C. Tranquillizer
310.

Cobalt oxide is used to impart which color to glass?

A. Brown
B. Blue
C. Red
D. Yellow
Answer» B. Blue
311.

Which among the following is correct full form of DDT?

A. Dichloro-diethyl-trifluoromethane
B. Dichloro-diphenyl-trichloroethane
C. Dichloro-diphenyl-trichloromethane
D. Dipheneyl-dichloro-trichloromethane
Answer» B. Dichloro-diphenyl-trichloroethane
312.

Which among the following sentences is true?

A. Ammophos is an organic fertilizer while Urea is an inorganic fertilizer
B. Ammophos is an inorganic fertilizer while Urea is an organic fertilizer
C. Both of them are organic fertilizers
D. Both of them are inorganic fertilizers
Answer» B. Ammophos is an inorganic fertilizer while Urea is an organic fertilizer
313.

Rayon is an example of _______?

A. a synthetic fiber
B. a natural fiber
C. semi-synthetic fiber
D. Synthetic Detergent
Answer» C. semi-synthetic fiber
314.

Sodium Alkyl Sulphate and Benzene Sulphate are examples of ________

A. Explosives
B. Insecticides
C. Fungicides
D. Synthetic Detergents
Answer» D. Synthetic Detergents
315.

Which of the following group characterizes alcohols?

A. OH group
B. COOH group
C. COO group
D. CO group
Answer» A. OH group
316.

Which among the following is not a use of Graphite?

A. making of electrodes
B. lubricant
C. manufacturing of crucibles,
D. Glass cutting
Answer» D. Glass cutting
317.

Water at 4 degree centigrade has____?

A. minimum density
B. maximum density
C. No density
D. None of the above
Answer» B. maximum density
318.

To keep the hot glass item‘s finishing and transparency , they go through a process called annealing. This process involves _______?

A. cooled rapidly
B. cooled very slowly
C. cooled slowly and uniformly under controlled environment
D. heating rapidly
Answer» C. cooled slowly and uniformly under controlled environment
319.

Bleaching Powder is a compound of _______?

A. Calcium
B. Sodium
C. Magnesium
D. Sulphur
Answer» A. Calcium
320.

Graphite, Carbon and Diamonds are _________?

A. Isotopes
B. Isomers
C. Isotones
D. Allotropes
Answer» D. Allotropes
321.

Galena & Litharge are ores of which of the following metals?

A. Mercury
B. Zinc
C. Copper
D. Lead
Answer» D. Lead
322.

A molecule is a smallest part of matter which possesses all properties of original matter. A molecule is electrically _________?

A. Positve
B. Negative
C. either positive or negative
D. neutral
Answer» D. neutral
323.

A neutron , an electron, a proton and an alpha particle are moving with the same kinetic energy. Which of the following is correct order of their speeds?

A. Alpha Particle, Neutron, Proton, Electron
B. Electron, Proton , Neutron, Alpha Particle
C. Alpha Particle, Proton, Neutron, Electron
D. Neutron, Proton, Alpha Particle, Electron
Answer» A. Alpha Particle, Neutron, Proton, Electron
324.

Whenever an alkali metal such as Lithium or Sodium reacts with water , which among the following gas is produced?

A. Oxygen
B. Hydrogen
C. Ozone
D. Carbondioxide
Answer» B. Hydrogen
325.

Which among the following are used as components to produce Nitrolim, a widely used fertilizer in past?

A. Nitrogen & Limestone
B. Calcium Carbide and Nitrogen
C. Calcium Carbide & Carbon
D. Calcium Carbide and Limestone
Answer» B. Calcium Carbide and Nitrogen
326.

The aqueous solution of which among the following acids is called Vinegar?

A. Oxalic acid
B. Citric acid
C. Acetic acid
D. Hydrochloric acid
Answer» C. Acetic acid
327.

Which among the following is the correct decreasing of bioelements in Human Body?

A. oxygen, hydrogen, Carbon, nitrogen, calcium, and phosphorus
B. oxygen, carbon, nitrogen, hydrogen, calcium, and phosphorus
C. oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus
D. carbon, oxygen, hydrogen, nitrogen, calcium, and phosphorus
Answer» C. oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus
328.

Which among the following happens in an oxidation reaction ?

A. Electrons are gained
B. Electrons are lost
C. Protons are gained
D. Protons are lost
Answer» B. Electrons are lost
329.

Identify the thermosetting plastic from the given options:

A. Polythene
B. Bakelite
C. PVC
D. Casseine
Answer» B. Bakelite
330.

White Phosphorous is represented by which among the following symbols?

A. P1
B. P2
C. P3
D. P4
Answer» D. P4
331.

Which among the following is called Laughing Gas popularly?

A. Nitric oxide
B. Nitrous oxide
C. Nitrogen penta oxide
D. Nitrogen
Answer» B. Nitrous oxide
332.

Identify the non-metallic mineral from the given options:

A. Manganese
B. Magnesium
C. Silica
D. Bauxite
Answer» C. Silica
333.

Which among the following are constituents of Brass?

A. Zinc and Copper
B. Iron and Zinc
C. Copper and Nickel
D. Iron and Copper
Answer» A. Zinc and Copper
334.

Which among the following acids is abundant in Grapes, Bananas and Tamarind?

A. Lactic Acid
B. Oxalic Acid
C. Salicylic Acid
D. Tartaric Acid
Answer» D. Tartaric Acid
335.

Which among the following gas was leaked at Bhopal during the Bhopal gas tragedy at 2- 3 December 1984?

A. Methyl isocyanide
B. Methyl isocyanate
C. methyl isochloride
D. methyl isochlorate
Answer» B. Methyl isocyanate
336.

In the manufacture of Vanaspati ghee from vegetable oils, which among the following gas is used?

A. N2
B. CO2
C. H2
D. Ne
Answer» C. H2
337.

When a tubelight breaks, a cracking sound is produced because ____?

A. Pressure inside the lamp is less than atmospheric pressure
B. Pressure inside the lamp is more than atmospheric pressure
C. The lamp is filled with reactive gases
D. The lamp is filled with mercury vapour
Answer» A. Pressure inside the lamp is less than atmospheric pressure
338.

Which among the following is the objective of the Methyl tert-butyl ether (MTBE) mixing with Petroleum?

A. Raise Octane Number
B. Antioxidant Stabilizer
C. Lead Scavanger
D. Fuel Dye
Answer» A. Raise Octane Number
339.

The most important contributor of sea salt is ____?

A. Rivers
B. Salty Rocks at bottom of sea
C. Aquatic animals in Sea
D. Atmosphere around sea
Answer» A. Rivers
340.

Which among the following elements are generally find in free state?

A. Group 11 elements
B. Group 12 elements
C. Group 13 elements
D. Group 14 elements
Answer» A. Group 11 elements
341.

Which among the following would cause the bright red colur due to bursting of crackers?

A. Strontium
B. Sodium
C. Suphur
D. Magnesium
Answer» A. Strontium
342.

Who among the following scientists had discovered Radium?

A. Marie Sklodowska-Curie and Pierre Curie
B. André-Louis Debierne
C. Kasimir Fajans
D. Oswald Helmuth Göhring
Answer» A. Marie Sklodowska-Curie and Pierre Curie
343.

Who among the following had given the Atomic Theory?

A. Benzamin Franklin
B. Madam curie
C. Albert Einstien
D. John Dalton
Answer» D. John Dalton
344.

Which among the following oxides cause the Acid rain ?

A. Carbon monoxide and carbon dioxide
B. Nitrous oxide and sulphur dioxide
C. Carbon dioxide and nitrous oxide
D. Sulphur dioxide and carbon monoxide
Answer» B. Nitrous oxide and sulphur dioxide
345.

Which among the following element is an essential constituent of acids?

A. Nitrogen
B. Hydrogen
C. Helium
D. Oxygen
Answer» B. Hydrogen
346.

Highest percentage of nitrogen is found in which among the following fertilizers among the given options?

A. Calcium ammonium nitrate
B. Ammonium nitrate
C. Calcium nitrate
D. Urea
Answer» D. Urea
347.

Which among the following is popularly called Hypo?

A. Silver bromide
B. Silver nitrate
C. Sodium thiosulphate
D. Sodium phosphate
Answer» C. Sodium thiosulphate
348.

Which among the following is a Noble Gas?

A. Nitrogen
B. Hydrogen
C. Oxygen
D. Helium
Answer» D. Helium
349.

Which of the following is an anti-knocking compound that has been phased out in many countries so far?

A. Lead tetrachloride
B. Tetra Ethyl Lead
C. Ethyl acetate
D. None of the above
Answer» B. Tetra Ethyl Lead
350.

Which among the following is the main constituent of Biogas?

A. Methane
B. Ethane
C. Propane
D. Butane
Answer» A. Methane
351.

Which among the following methods can be used to remove the permanent hardness in water due to calcium or magnesium sulphates?

A. Sulphonate method
B. Nitrate method
C. Zeolite method
D. None of the above
Answer» C. Zeolite method
352.

The free electrons are in the __________?

A. Outermost orbit of the metals
B. Innermost orbit of the metals
C. Middle orbits of the metals
D. Any orbit of the metals
Answer» A. Outermost orbit of the metals
353.

Which of the following type of Coal, has maximum carbon content?

A. Peat
B. Lignite
C. Antharacite
D. Bituminious
Answer» C. Antharacite
354.

What is the common name of Calcium Sulphate Hemihydrate?

A. Bleaching powder
B. Slaked lime
C. Plaster of paris
D. Detergent
Answer» C. Plaster of paris
355.

Which among following is also known as white gold?

A. Nickel
B. Rhodium
C. Platinum
D. Palladium
Answer» C. Platinum
356.

Which acid is described as HOOCCOOH?

A. Oxalic Acid
B. Acetic Acid
C. Carbonic Acid
D. Citric Acid
Answer» A. Oxalic Acid
357.

Carnotite is a mineral of which among the following metals?

A. Lead
B. Uranium
C. Aluminium
D. Iron
Answer» B. Uranium
358.

PVC is a polymer of ?

A. Propane
B. Vinyl chloride
C. Styrene
D. Carbonates
Answer» B. Vinyl chloride
359.

When Sulphur is heated with rubber, the process is commonly known as ?

A. Galvanization
B. Sulphonation
C. Vulcanization
D. Hydrodesulfurization
Answer» C. Vulcanization
360.

Which among the following chemicals is used in Photography?

A. Silver Bromide
B. Potassium Chloride
C. Sodium Bromide
D. Magnesium Chloride
Answer» A. Silver Bromide
361.

Which among the following is major component of Gobar Gas?

A. Butane
B. Ethane
C. Propane
D. Metahne
Answer» D. Metahne
362.

Which among the following is a common salt in Detergents?

A. Sulphate
B. Nitrate
C. Sulphonate
D. Carbonate
Answer» A. Sulphate
363.

Potassium permanganate is used to purify water. Which among the following properties of Potassium permanganate helps in this work?

A. sterilizing
B. oxidizing
C. reducing
D. leaching
Answer» B. oxidizing
364.

What happens to the weight of Iron, when it rusts?

A. Increases for long time
B. Decreases then increases
C. Increases then decreases
D. Remains the same
Answer» C. Increases then decreases
365.

Lightest and most abundant chemical element, constituting roughly 75 % of the Universe‘s elemental mass.

A. Carbon
B. Aluminium
C. Bauxite
D. Hydrogen
Answer» D. Hydrogen
366.

A cotton wick dipped in pure honey when ignited with a matchstick will ______?

A. Burn Consistently
B. Burn with cracking sound
C. Does not burn at all
D. Burns with too much smoke
Answer» A. Burn Consistently
367.

The easily noticed smell of the LPG gas is because of which among the following?

A. Butane
B. Propane
C. Methane
D. Ethanethiol
Answer» D. Ethanethiol
368.

Which compound of mercury is used as antiseptic?

A. Mercuric sulphide
B. Mercuric oxide
C. Mercuric chloride
D. Mercuric iodide
Answer» C. Mercuric chloride
369.

Speed of sound is maximum in which among the following?

A. Solids
B. liquids
C. Gases
D. Vaccum
Answer» A. Solids
370.

Which among the following metal is highest electrical conductivity as well as highest thermal conductivity?

A. Gold
B. Silver
C. Platinum
D. Iron
Answer» B. Silver
371.

Calamine is an ore of which among the following?

A. Zinc
B. Copper
C. Mercury
D. Iron
Answer» A. Zinc
372.

Trimethylxanthine is a chemical name of a stimulant which is found in tea and coffee. What is the popular name?

A. Thein
B. Caffeine
C. Theobromine
D. Theophylline
Answer» B. Caffeine
373.

The popular drug ―Acetylsalicylic Acid‖ is commonly known by which among the following names?

A. Paracetamol
B. Aspirin
C. Salsalate
D. Wintergreen
Answer» B. Aspirin
374.

What are the main constituents of LPG?

A. Methane, Hexane, Ethane
B. Methane, Butane, Propane
C. Ethane, Pentane, Hexane
D. Ethane, Methane, Pentane
Answer» B. Methane, Butane, Propane
375.

Which among the following is known as White Vitriol?

A. Zinc Sulphate
B. Zinc Chloride
C. Zinc Phosphate
D. Zinc oxide
Answer» A. Zinc Sulphate
376.

Which among the following is known as Quick Lime?

A. CaO
B. CaCO2
C. Ca(OH)2
D. CaCl2
Answer» A. CaO
377.

In which among the following forms, Nitrogen is present in Urea?

A. Nitrite
B. Nitrate
C. Ammonium
D. Amide
Answer» D. Amide
378.

―Oil of mirbane‖ is the most common name of which among the following?

A. Phenol
B. Toluene
C. Phenolphthalein
D. Nitrobenzene
Answer» D. Nitrobenzene
379.

Which among the following substances is most suitable for making Compact Discs?

A. PVC
B. Polyethylene
C. Polyamides
D. Polycarbonates
Answer» D. Polycarbonates
380.

What is the common name of analgesic and antipyretic drug acetylsalicylic acid?

A. Paracetamol
B. Aspirin
C. Wintergreen
D. Trazodone
Answer» B. Aspirin
Chapter: Biology
381.

Some plants are ‗carnivorous‘ due to their adaptation to grow in places where the soil is thin or poor in nutrients, especially nitrogen.In this context, consider the following plants:
1.Utricularia
2.Nepenthes
3.Dionaea
Which of the above plant(s) is/are carnivorous?

A. Only 2
B. 1 and 2
C. 2 and 3
D. 1, 2 and 3
Answer» D. 1, 2 and 3
382.

Sodium
Potassium
Which among the above plays a vital role in restoring the body fluid?

A. 1 only
B. 2 only
C. Both 1& 2
D. Neither 1 nor 2
Answer» C. Both 1& 2
383.

Which among the following was the first vaccine ever to be developed?

A. Cholera
B. Smallpox
C. Rabies
D. Tetanus
Answer» B. Smallpox
384.

Bowman‘s Capsule‘ works as a part of the functional unit of which among the following human physiological system?

A. Circulatory System
B. Respiratory System
C. Excretory System
D. Reproductive System
Answer» C. Excretory System
385.

Which of the following Vitamins of the ‗B-Complex‘ are correctly paired with their respective names?
1. Vitamin B2-Riboflavin
2. Vitamin B3-Niacin
3. Vitamin B7-Biotin
4. Vitamin B12-Cyanocobalamine

A. 2 and 4
B. 3 and 4
C. 1, 3 and 4
D. All of them
Answer» D. All of them
386.

Plants which are adapted to grow in soils containing high concentration of salt are known as:

A. Xerophytes
B. Mesophytes
C. Halophytes
D. Thallophytes
Answer» C. Halophytes
387.

Which among the following have a ‗mixed heart‘ ,that is the heart in which the oxygenated and the deoxygenated blood is mixed?

A. Birds
B. Fishes
C. Reptiles
D. Nematodes
Answer» C. Reptiles
388.

Pancreas‘ functions as an:
1. Endocrine gland
2. Exocrine gland

A. Only 1
B. Only 2
C. Both 1 and 2
D. Neither 1 nor 2
Answer» C. Both 1 and 2
389.

Saffron‘ is obtained from which among the following parts of the plant?

A. Stigma
B. Anther
C. Stamen
D. Pollen
Answer» A. Stigma
390.

Which among the following factors are essential for ‗blood coagulation‘?
1.Vitamin K
2.Calcium ions (Ca++)
3.Christmas factor

A. 1 and 2
B. 1 and 3
C. 2 and 3
D. 1, 2 and 3
Answer» D. 1, 2 and 3
391.

Which among the followingis/are correctly paired:
1.Ginger:Tuber
2.Potato:Rhizome
3.Onion:Bulb

A. Only 2
B. Only 3
C. Only 1
D. 1, 2 and 3
Answer» B. Only 3
392.

The bacterium ‗Escherichia coli‘ is found mainly in:

A. Human Intestine
B. Pteridophytes
C. Root Nodules of leguminous plants
D. Paddy fields for nitrogen fixation
Answer» A. Human Intestine
393.

Which among the following is not a ‗heriditary‘ disease?

A. Thalessemia
B. Colour-Blindness
C. Haemophilia
D. Leukemia
Answer» D. Leukemia
394.

Human Papilloma Virus is related to which of the following diseases?

A. Prostate Cancer
B. Cervical Cancer
C. Lymphatic Filariasis
D. Leukemia
Answer» B. Cervical Cancer
395.

The nutritional supplements Spirulina, Chorella and the Vitamin-C supplement, Dunaliella are actually:

A. Algae
B. Lichens
C. Probiotics
D. Bryophytes
Answer» A. Algae
396.

Anemophily‘ is pollination by :

A. Birds
B. Wind
C. Ants
D. Bats
Answer» B. Wind
397.

Pest-resistant cotton commonly known as ‗Bt-Cotton‘ is genetically engineered by inserting a gene from a:

A. Bacterium
B. Virus
C. Microalgae
D. Protist
Answer» A. Bacterium
398.

Penicillin‘ which is used as an antibiotic is obtained from :

A. Bacteria
B. Fungi
C. algae
D. Lichens
Answer» B. Fungi
399.

The instrument that measures arterial blood pressure is known as :

A. Pyknometer
B. Hypsometer
C. Sphygmoscope
D. Sphygmomanometer
Answer» D. Sphygmomanometer
400.

Meg-1 is an imprinted gene which finds expression only from maternal chromosomes which regulates the transfer of nutrients from the plant to the seed. This gene has been discovered in:

A. Maize
B. cotton
C. jute
D. Sugarcane
Answer» A. Maize
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