General Science MCQ GK

Total Questions: 200

101) What is the chemical formula for methane?

a) CH4

b) C2H6

c) C3H8

d) C4H10

102) Which planet is closest to the Sun?

a) Venus

b) Mercury

c) Earth

d) Mars

103) What type of energy is released during a chemical reaction?

a) Kinetic Energy

b) Potential Energy

c) Thermal Energy

d) Chemical Energy

104) What is the largest organ in the human body?

a) Heart

b) Liver

c) Skin

d) Lungs

105) Which gas is primarily responsible for the greenhouse effect?

a) Oxygen

b) Nitrogen

c) Carbon Dioxide

d) Hydrogen

106) What is the study of heredity called?

a) Genetics

b) Biology

c) Evolution

d) Ecology

107) What is the primary component of natural gas?

a) Methane

b) Ethane

c) Propane

d) Butane

108) What is the main function of the lymphatic system?

a) Transport nutrients

b) Fight infection

c) Support the body

d) Regulate temperature

109) What is the chemical symbol for potassium?

a) P

b) K

c) Na

d) Ca

110) Which layer of the Earth is solid?

a) Crust

b) Outer Core

c) Inner Core

d) Mantle

111) What is the pH level of acidic solutions?

a) Less than 7

b) Equal to 7

c) Greater than 7

d) Neutral

112) What organ is primarily responsible for detoxification?

a) Kidneys

b) Liver

c) Lungs

d) Heart

113) What type of radiation has the longest wavelength?

a) Gamma Rays

b) X-rays

c) Ultraviolet

d) Radio Waves

114) Which blood type is known as the universal recipient?

a) A

b) B

c) AB

d) O

115) What is the primary function of the skeletal system?

a) Movement

b) Protection

c) Support

d) All of the above

116) Which process converts glucose into energy in cells?

a) Photosynthesis

b) Respiration

c) Fermentation

d) Metabolism

117) What is the main function of the muscular system?

a) Circulate blood

b) Move the body

c) Protect organs

d) Digest food

118) Which vitamin is synthesized in the skin?

a) Vitamin A

b) Vitamin D

c) Vitamin C

d) Vitamin E

119) What is the chemical formula for acetic acid?

a) H2CO3

b) CH3COOH

c) H2SO4

d) NH3

120) Which organ is responsible for producing bile?

a) Gallbladder

b) Pancreas

c) Liver

d) Stomach

121) What is the primary function of red blood cells?

a) Fight infection

b) Transport oxygen

c) Clot blood

d) Regulate temperature

122) What is the most abundant element in the Earth's crust?

a) Aluminum

b) Oxygen

c) Silicon

d) Iron

123) Which part of the brain is responsible for decision making?

a) Cerebrum

b) Cerebellum

c) Brainstem

d) Thalamus

124) What is the main purpose of photosynthesis?

a) Produce glucose

b) Consume oxygen

c) Release carbon dioxide

d) Store energy

125) What is the term for the change of state from solid to liquid?

a) Melting

b) Freezing

c) Condensation

d) Evaporation

126) Which nutrient is essential for energy production?

a) Vitamins

b) Proteins

c) Carbohydrates

d) Minerals

127) What is the primary function of the endocrine system?

a) Regulate temperature

b) Produce hormones

c) Fight infection

d) Support the body

128) Which organ is responsible for filtering blood?

a) Heart

b) Liver

c) Kidneys

d) Pancreas

129) What is the term for the smallest unit of an organism?

a) Cell

b) Tissue

c) Organ

d) Organism

130) What is the study of fungi called?

a) Botany

b) Zoology

c) Mycology

d) Ecology

131) What is the primary gas that plants release during photosynthesis?

a) Oxygen

b) Carbon Dioxide

c) Nitrogen

d) Hydrogen

132) What is the term for an organism that can make its own food?

a) Heterotroph

b) Autotroph

c) Decomposer

d) Consumer

133) What is the chemical formula for calcium carbonate?

a) CaCO3

b) CaO

c) C6H12O6

d) NaCl

134) Which process converts a solid directly into a gas?

a) Sublimation

b) Evaporation

c) Melting

d) Freezing

135) What is the primary function of the immune system?

a) Digest food

b) Protect against disease

c) Regulate temperature

d) Transport nutrients

136) Which vitamin is produced by gut bacteria?

a) Vitamin A

b) Vitamin B12

c) Vitamin C

d) Vitamin D

137) What is the term for a pure substance made of only one type of atom?

a) Element

b) Compound

c) Mixture

d) Solution

138) What is the chemical symbol for silver?

a) Ag

b) Au

c) Hg

d) Pb

139) What is the primary function of the integumentary system?

a) Regulate temperature

b) Protect the body

c) Transport nutrients

d) Produce hormones

140) What is the term for the study of bones?

a) Osteology

b) Anatomy

c) Physiology

d) Pathology

141) Which type of cells are responsible for carrying oxygen in the blood?

a) Red Blood Cells

b) White Blood Cells

c) Platelets

d) Plasma

142) What is the chemical formula for sulfur dioxide?

a) SO2

b) SO3

c) H2SO4

d) H2S

143) Which of the following is a characteristic of mammals?

a) Cold-blooded

b) Lay eggs

c) Have fur or hair

d) Gills

144) What is the primary function of the respiratory system?

a) Circulate blood

b) Exchange gases

c) Digest food

d) Support the body

145) What is the term for the process of cell division?

a) Mitosis

b) Meiosis

c) Binary Fission

d) Cytokinesis

146) Which vitamin is important for vision and immune function?

a) Vitamin A

b) Vitamin B

c) Vitamin C

d) Vitamin D

147) What is the chemical formula for hydrogen peroxide?

a) H2O2

b) H2O

c) O2

d) HCl

148) What type of bond involves the attraction between oppositely charged ions?

a) Ionic Bond

b) Covalent Bond

c) Hydrogen Bond

d) Metallic Bond

149) What is the main source of energy for the human body?

a) Vitamins

b) Proteins

c) Carbohydrates

d) Fats

150) Which gas is used by plants during photosynthesis?

a) Oxygen

b) Carbon Dioxide

c) Nitrogen

d) Hydrogen

Previous Next

Total Questions: 200

Share this page: