Here are 20 general science questions that can help you prepare for the SSC exams:-
1- A concave lens always forms an image which is:
(a) real and erect
(b) virtual and erect
(c) real and inverted
(d) virtual and inverted
Answer: (b) virtual and erect
2-A vitamin requires cobalt for its activity. The vitamin is:
(a) Vitamin B12
(b) Vitamin D
(c) Vitamin B2
(d) Vitamin A
Answer: (a) Vitamin B12
3-One of the constituents of tear gas is:
(a) Ethane
(b) Ethanol
(c) Ether
(d) Chloropicrin
Answer: (d) Chloropicrin
4-The modulus of rigidity is the ratio of:
(a) longitudinal stress to longitudinal strain
(b) volume stress to volume strain
(c) shearing stress to shearing strain
(d) tensile stress to tensile strain
Answer: (c) shearing stress to shearing strain
5-The propagation of sound waves in a gas involves:
(a) adiabatic compression and rarefaction
(b) isothermal compression and rarefaction
(c) isochoric compression and rarefaction
(d) isobaric compression and rarefaction
Answer: (a) adiabatic compression and rarefaction
6-An atomic clock is based on transitions in:
(a) Sodium
(b) Caesium
(c) Magnesium
(d) Aluminium
Answer: (b) Caesium
7-Plasma membrane in eukaryotic cells is made up of:
(a) Phospholipid
(b) Lipoprotein
(c) Phospholipo-protein
(d) Phospho-protein
Answer: (a) Phospholipid
8-Which one of the following is also called the ‘power plants’ of the cell?
(a) Golgi body
(b) Mitochondrion
(c) Ribosome
(d) Lysosome
Answer: (b) Mitochondrion
9-What is the chemical name of vinegar?
(a) Citric acid
(b) Acetic acid
(c) Pyruvic acid
(d) Malic acid
Answer: (b) Acetic acid
10-Which of the following is not a property of heavy water?
(a) Boiling point of heavy water is lower than that of ordinary water
(b) Density of heavy water is higher than that of ordinary water
(c) Freezing point of heavy water is higher than that of ordinary water
(d) It produces corrosion
Answer: (a) Boiling point of heavy water is lower than that of ordinary water
11-In which of the following processes is energy released?
(a) Respiration
(b) Photosynthesis
(c) Ingestion
(d) Absorption
Answer: (a) Respiration
12-Animals living in tree trunks are known as:
(a) Arboreal
(b) Volant
(c) Amphibious
(d) Aquatic
Answer: (a) Arboreal
13-If the input frequency of a full wave rectifier is ( n ), then the output frequency would be:
(a) ( n/2 )
(b) ( n )
(c) ( 3n/2 )
(d) ( 2n )
Answer: (d) ( 2n )
14-Heat transfer horizontally within the atmosphere is called:
(a) Conduction
(b) Convection
(c) Absorption
(d) Advection
Answer: (d) Advection
15-Noise is measured in:
(a) Watt
(b) REM
(c) Centigrade
(d) Decibel
Answer: (d) Decibel
16-Bats can fly in the dark because:
(a) they can see objects in darkness
(b) they have weak legs and are likely to be attacked by predators
(c) they generate flashes of light
(d) they generate ultrasonic sound waves
Answer: (d) they generate ultrasonic sound waves
17-What changes will happen to a bowl of ice and water kept at exactly zero degrees Celsius?
(a) All ice will melt
(b) All water will become ice
(c) No change will happen
(d) Only some ice will melt
Answer: (c) No change will happen
18-Which of the following is a non-renewable resource?
(a) Solar energy
(b) Wind energy
(c) Coal
(d) Hydropower
Answer: (c) Coal
19-Which gas is most abundant in the Earth’s atmosphere?
(a) Oxygen
(b) Nitrogen
(c) Carbon dioxide
(d) Argon
Answer: (b) Nitrogen
20-Which part of the plant is responsible for photosynthesis?
(a) Root
(b) Stem
(c) Leaf
(d) Flower
Answer: (c) Leaf
20 QUESTIONS OF BIOLOGY FOR SSC
Here are 20 biology questions that can help you prepare for the SSC exams:
1-Which part of the cell is known as the powerhouse?
(a) Nucleus
(b) Ribosome
(c) Mitochondria
(d) Endoplasmic Reticulum
Answer: (c) Mitochondria
2-What is the basic unit of heredity?
(a) Gene
(b) Chromosome
(c) DNA
(d) RNA
Answer: (a) Gene
3-Which vitamin is produced in the skin when exposed to sunlight?
(a) Vitamin A
(b) Vitamin B
(c) Vitamin C
(d) Vitamin D
Answer: (d) Vitamin D
4-Which blood cells are responsible for fighting infections?
(a) Red blood cells
(b) White blood cells
(c) Platelets
(d) Plasma cells
Answer: (b) White blood cells
5-What is the process by which plants make their food?
(a) Respiration
(b) Photosynthesis
(c) Transpiration
(d) Germination
Answer: (b) Photosynthesis
6-Which organ is primarily responsible for detoxification in the human body?
(a) Heart
(b) Kidney
(c) Liver
(d) Lungs
Answer: (c) Liver
7-What is the term for animals that eat both plants and animals?
(a) Herbivores
(b) Carnivores
(c) Omnivores
(d) Detritivores
Answer: (c) Omnivores
8-Which part of the brain controls balance and coordination?
(a) Cerebrum
(b) Cerebellum
(c) Medulla
(d) Pons
Answer: (b) Cerebellum
9-What is the main function of red blood cells?
(a) Fight infections
(b) Transport oxygen
(c) Clot blood
(d) Produce antibodies
Answer: (b) Transport oxygen
10-Which hormone regulates blood sugar levels?
(a) Adrenaline
(b) Thyroxine
(c) Insulin
(d) Estrogen
Answer: (c) Insulin
11-What is the largest organ in the human body?
(a) Heart
(b) Liver
(c) Skin
(d) Lungs
Answer: (c) Skin
12-Which type of blood vessel carries blood away from the heart?
(a) Veins
(b) Arteries
(c) Capillaries
(d) Venules
Answer: (b) Arteries
13-What is the term for the study of fungi?
(a) Mycology
(b) Bacteriology
(c) Virology
(d) Phycology
Answer: (a) Mycology
14-Which part of the plant is responsible for absorbing water and nutrients?
(a) Stem
(b) Leaves
(c) Roots
(d) Flowers
Answer:(c) Roots
15-What is the primary function of the large intestine?
(a) Digestion of food
(b) Absorption of nutrients
(c) Absorption of water
(d) Production of enzymes
Answer: (c) Absorption of water
16-Which gas is essential for the process of photosynthesis?
(a) Oxygen
(b) Nitrogen
(c) Carbon dioxide
(d) Hydrogen
Answer: (c) Carbon dioxide
17-What is the term for the genetic makeup of an organism?
(a) Phenotype
(b) Genotype
(c) Allele
(d) Chromosome
Answer: (b) Genotype
18-Which organ system is responsible for transporting blood throughout the body?
(a) Respiratory system
(b) Digestive system
(c) Circulatory system
(d) Nervous system
Answer: (c) Circulatory system
19-What is the smallest unit of life?
(a) Atom
(b) Molecule
(c) Cell
(d) Tissue
Answer: (c) Cell
20-Which process involves the division of a single cell into two identical daughter cells?
(a) Meiosis
(b) Mitosis
(c) Fertilization
(d) Mutation
Answer: (b) Mitosis
20 questions of chemistry for ssc
Here are 20 chemistry questions to help you prepare for the SSC exams:
1-What is the common characteristic of the elements of the same group in the periodic table?
(a) Electrons in outermost shell
(b) Total number of electrons
(c) Total number of protons
(d) Atomic weight
Answer: (a) Electrons in outermost shell
2-What happens when one S and one P orbital is hybridized?
(a) We get three orbitals in a plane
(b) We get two orbitals at 180 degrees
(c) We get two mutually perpendicular orbitals
(d) We get four orbitals directed tetrahedrally
Answer: (b) We get two orbitals at 180 degrees
3-Atomic bomb is based on which principle?
(a) Nuclear fusion
(b) Nuclear fission
(c) Natural radioactivity
(d) All options are correct
Answer: (b) Nuclear fission
4-Which is used to treat indigestion?
(a) Antacid
(b) Antiseptic
(c) Analgesic
(d) Antibiotic
Answer: (a) Antacid
5-What does a catalyst do in a reaction?
(a) A catalyst is nothing but the final product of a reaction
(b) Does not alter the rate of reaction
(c) Speeds up chemical reaction
(d) Slows down chemical reaction
Answer: (c) Speeds up chemical reaction
6-Why do metals conduct electricity?
(a) Because of low melting point
(b) Because of high tensile strength
(c) Because of free electrons
(d) Because of high atomic density
Answer: (c) Because of free electrons
7-On a clean glass plate, a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because:
(a) Mercury is a metal
(b) Density of mercury is greater than that of water
(c) Cohesion of mercury is greater than its adhesion with glass
(d) Cohesion of water is greater than its adhesion with glass
Answer: (c) Cohesion of mercury is greater than its adhesion with glass
8-The (O-H) bond in CH3OH is which type of bond?
(a) Polar covalent
(b) Ionic
(c) Non-polar covalent
(d) Cationic
Answer: (a) Polar covalent
9-Adding which substance gives blue color to glass?
(a) Manganese oxide
(b) Cobalt oxide
(c) Chromium oxide
(d) Iron oxide
Answer: (b) Cobalt oxide
10-Terylene is a condensation polymer of ethylene glycol and which acid?
(a) Benzoic Acid
(b) Salicylic acid
(c) Phthalic acid
(d) Terephthalic acid
Answer: (d) Terephthalic acid
11-The conversion of hard water into soft water by boiling or adding calcium hydroxide is called:
(a) Baker’s process
(b) Temp’s process
(c) Clarke’s process
(d) Lake’s process
Answer: (c) Clarke’s process
12-When cathode rays strike a target of high atomic weight, they give rise to:
(a) Alpha rays
(b) Beta and gamma rays
(c) X-rays
(d) Positive rays
Answer: (c) X-rays
13-Biofertilizers convert nitrogen to:
(a) Nitrates
(b) Ammonia
(c) Nitrogenase
(d) Amino acids
Answer: (a) Nitrates
14-Which drug is used as an anti-inflammatory?
(a) Metformin
(b) Diazepam
(c) Ibuprofen
(d) Paracetamol
Answer: (c) Ibuprofen
15-What is the chemical formula of common salt?
(a) NaCl
(b) KCl
(c) Na2CO3
(d) NaHCO3
Answer: (a) NaCl
16-Which element is used in the manufacture of safety matches?
(a) Phosphorus
(b) Sulfur
(c) Magnesium
(d) Potassium
Answer: (a) Phosphorus
17-Which gas is used in the preparation of soda water?
(a) Oxygen
(b) Nitrogen
(c) Carbon dioxide
(d) Hydrogen
Answer: (c) Carbon dioxide
18-Which acid is present in vinegar?
(a) Citric acid
(b) Acetic acid
(c) Lactic acid
(d) Tartaric acid
Answer: (b) Acetic acid
19-Which element is known as the ‘King of Chemicals’?
(a) Sulfur
(b) Nitrogen
(c) Oxygen
(d) Hydrogen
Answer: (a) Sulfur
20-What is the pH value of pure water?
(a) 7
(b) 5
(c) 9
(d) 6
Answer: (a) 7
20 questions of physics for ssc
Here are 20 physics questions to help you prepare for the SSC exams:
1-What is the unit of electrical resistance?
(a) Volt
(b) Ohm
(c) Ampere
(d) Watt
Answer: (b) Ohm
2-Which law states that the current through a conductor between two points is directly proportional to the voltage across the two points?
(a) Ohm’s Law
(b) Faraday’s Law
(c) Newton’s Law
(d) Coulomb’s Law
Answer: (a) Ohm’s Law
3-What is the speed of light in a vacuum?
(a) (3 \times 10^8 , \text{m/s})
(b) (3 \times 10^6 , \text{m/s})
(c) (3 \times 10^5 , \text{m/s})
(d) (3 \times 10^7 , \text{m/s})
Answer: (a) (3 \times 10^8 , \text{m/s})
4-Which phenomenon explains the bending of light when it passes from one medium to another?
(a) Reflection
(b) Refraction
(c) Diffraction
(d) Dispersion
Answer: (b) Refraction
5-What is the SI unit of power?
(a) Joule
(b) Newton
(c) Watt
(d) Pascal
Answer: (c) Watt
6-Which type of lens is used to correct myopia (nearsightedness)?
(a) Convex lens
(b) Concave lens
(c) Cylindrical lens
(d) Bifocal lens
Answer: (b) Concave lens
7-What is the principle behind the working of a hydraulic lift?
(a) Pascal’s Law
(b) Archimedes’ Principle
(c) Bernoulli’s Principle
(d) Newton’s Third Law
Answer: (a) Pascal’s Law
8-Which particle is responsible for the flow of electric current in a conductor?
(a) Proton
(b) Neutron
(c) Electron
(d) Photon
Answer: (c) Electron
9-What is the unit of frequency?
(a) Hertz
(b) Joule
(c) Tesla
(d) Pascal
Answer: (a) Hertz
10-Which law states that the force between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them?
(a) Coulomb’s Law
(b) Ohm’s Law
(c) Faraday’s Law
(d) Ampere’s Law
Answer: (a) Coulomb’s Law
11-What is the phenomenon of splitting of white light into its constituent colors called?
(a) Reflection
(b) Refraction
(c) Dispersion
(d) Diffraction
Answer: (c) Dispersion
12-Which device is used to measure electric current?
(a) Voltmeter
(b) Ammeter
(c) Ohmmeter
(d) Galvanometer
Answer: (b) Ammeter
13-What is the unit of work?
(a) Newton
(b) Joule
(c) Watt
(d) Pascal
Answer: (b) Joule
14-Which type of wave is a sound wave?
(a) Transverse wave
(b) Longitudinal wave
(c) Electromagnetic wave
(d) Surface wave
Answer: (b) Longitudinal wave
15-What is the acceleration due to gravity on the surface of the Earth?
(a) (9.8 , \text{m/s}^2)
(b) (8.9 , \text{m/s}^2)
(c) (10.8 , \text{m/s}^2)
(d) (7.8 , \text{m/s}^2)
Answer: (a) (9.8 , \text{m/s}^2)
16-Which law states that the total energy of an isolated system remains constant?
(a) Law of Conservation of Mass
(b) Law of Conservation of Energy
(c) Law of Conservation of Momentum
(d) Law of Conservation of Charge
Answer: (b) Law of Conservation of Energy
17-What is the unit of magnetic flux?
(a) Weber
(b) Tesla
(c) Henry
(d) Farad
Answer: (a) Weber
18-Which phenomenon is responsible for the blue color of the sky?
(a) Reflection
(b) Refraction
(c) Scattering
(d) Diffraction
Answer: (c) Scattering
19-What is the unit of pressure?
(a) Pascal
(b) Newton
(c) Joule
(d) Watt
Answer: (a) Pascal
20-Which principle explains the buoyant force experienced by objects submerged in a fluid?
(a) Pascal’s Principle
(b) Archimedes’ Principle
(c) Bernoulli’s Principle
(d) Newton’s Third Law
Answer: (b) Archimedes’ Principle
20 questions of botany for ssc
Here are 20 botany questions to help you prepare for the SSC exams:
1-Which element plays an important role in nitrogen fixation?
(a) Molybdenum
(b) Manganese
(c) Zinc
(d) Copper
Answer: (a) Molybdenum
2-Clove, the commonly used spice, is obtained from which part of the plant?
(a) Fruit
(b) Flower bud
(c) Stem
(d) Root
Answer: (b) Flower bud
3-Which of the following is not a component of chlorophyll?
(a) Calcium
(b) Carbon
(c) Magnesium
(d) Hydrogen
Answer: (a) Calcium
4-Ginger is a stem and not a root because:
(a) It lacks chlorophyll
(b) It stores food material
(c) It has nodes and internodes
(d) It grows horizontally in the soil
Answer: (c) It has nodes and internodes
5-During photosynthesis, green plants absorb:
(a) Oxygen
(b) Nitrogen
(c) Carbon monoxide
(d) Carbon dioxide
Answer: (d) Carbon dioxide
6-The presence of which structures distinguishes a plant cell from an animal cell?
(a) Nucleus
(b) Cell wall, Chloroplasts, Vacuoles
(c) Cell membrane
(d) Mitochondria
Answer: (b) Cell wall, Chloroplasts, Vacuoles
7-Water in plants is transported by:
(a) Xylem
(b) Epidermis
(c) Phloem
(d) Cambium
Answer: (a) Xylem
8-Which chemical is used for destroying fungi in water tanks?
(a) Nitric acid
(b) Zinc sulphate
(c) Magnesium sulphate
(d) Copper sulphate
Answer: (d) Copper sulphate
9-Carrot is orange in color because:
(a) It grows in the soil
(b) It contains carotene
(c) It is not exposed to sunlight
(d) The entire plant is orange in color
Answer: (b) It contains carotene
10-Toxicology is related to the study of:
(a) Poisons
(b) Diseases
(c) Bacteria
(d) Viruses
Answer: (a) Poisons
11-Besides carbohydrates, a major source of energy in our food is constituted by:
(a) Vitamins
(b) Minerals
(c) Fats
(d) Proteins
Answer: (c) Fats
12-Which of the following is a measure of the kinetics of an enzyme reaction?
(a) Isoelectric point
(b) Michaelis-Menten constant
(c) Active transport
(d) Equilibrium constant
Answer: (b) Michaelis-Menten constant
13-Which molecule connects glycolysis and the Krebs cycle?
(a) Citric acid
(b) Oxaloacetic acid
(c) Acetyl CoA
(d) Succinyl CoA
Answer: (c) Acetyl CoA
14-Which category of enzymes converts triglycerides into glycerol and fatty acids?
(a) Ligases
(b) Isomerase
(c) Lipase
(d) Transferases
Answer: (c) Lipase
15-Which of the following pairs functions as mobile electron carriers in the Electron Transport Chain in Mitochondria?
(a) Ubiquinone and Cytochrome c
(b) NADH and FMN
(c) NADPH and FADH
(d) Cytochrome a and Ay
Answer: (a) Ubiquinone and Cytochrome c
16-Which of the following is not a second messenger?
(a) Calcium ion
(b) Magnesium ion
(c) DAG
(d) IP3
Answer: (b) Magnesium ion
17-Which enzyme is involved in the error-free repair of double-strand breaks in DNA?
(a) Photo reactivation
(b) Base excision repair
(c) Homologous recombination
(d) Mismatch repair
Answer: (c) Homologous recombination
18-Which technique allows simultaneous profiling of the activity of all the genes in an organism or cell type?
(a) DNA microarrays technique
(b) Gel filtration
(c) Atomic force microscope
(d) Genetic map
Answer: (a) DNA microarrays technique
19-Which of the following elements is a co-factor in reactions mediated by Hexokinases?
(a) Mg2+
(b) NADT
(c) ATP
(d) Acetyl Co-enzyme-A
Answer: (a) Mg2+
20-Which committee should be constituted by all institutions handling genetically engineered micro-organisms, plants, or animals in India for reviewing, approving, and monitoring all projects?
(a) Genetic Engineering Approval Committee
(b) Institutional Biosafety Committee
(c) Review Committee for genetic manipulations
(d) Recombinant DNA Advisory Committee
Answer: (b) Institutional Biosafety Committee
