PM Yashasvi 9th Class Science Model Paper 2 | Yashasvi Important Questions
101. Plastics which when moulded once, cannot be softened by heating. Such plastics are called ____
a) Polythene
b) Thermoplastics
c) Polyster
d) Thermosetting plastics
Answer: (d)
102. Polycot is made by mixing two types of fibres namely
a) Silk + Cotton
b) Polythene + cotton
c) Silk + Polyester
d) Polyester + Cotton
Answer: (d)
103. The 4 R Principle is
a) Reduce, Reuse, Recycle, Recover
b) Remember, reduce, Recycle, Rejoice
c) Repeat, Rejoice, recycle, reduce
d) None of the above
Answer: (a)
104. _____________ is an example of natural polymer
a) Rayon
b) Cellulose
c) Nylon
d) All of the above
Answer: (b)
105. Which of the following is Non-biodegradable
a) Woolen clothes
b) Plastic bag,
c) Cotton cloth
d) Wood
Answer: (b)
106. Bakelite and Melamine are examples of
a) Thermosetting plastics
b) Silk
c) Nylon
d) Rayon
Answer: (a)
107. Fire proof plastic uniform worn by fire fighters has a coating of _____ to make it fire resistant.
a) Nylon
b) Rayon
c) Melamine plastic
d) Silk
Answer: (c)
108. The coating on modern non- stick cookware and electric iron is of
a) Terrycot
b) Rayon
c) Polyester
d) Teflon
Answer: (d)
109. The property of metals by which they can be beaten into thin sheets is called ____
a) Ductility
b) Sheetability
c) Metallic
d) Malleability
Answer: (d)
110. The property of metal by which it can be drawn into wires is called ______
a) Ductility
b) Sheetability
c) Metallic
d) Malleability
Answer: (a)
111. The metal found in liquid state is
a) Iron
b) Aluminium
c) Mercury
d) Gold
Answer: (c)
112. When a copper vessel is exposed to moist air for long, it acquires a dull green coating. The green material is a mixture of
a) Copper oxide and Copper Nitrate
b) Copper hydroxide & Copper Carbonate
c) Copper carbonate and Copper sulphate
d) Copper hydroxide and Copper Nitrate
Answer: (b)
113. When sulphur dioxide is dissolved in water __________ is formed.
a) Sulphuric acid
b) Sulphoxy acid
c) Sulphurous acid
d) Sulphur trioxide
Answer: (c)
114. Sodium metal is stored in
a) water
b) Kept under open air
c) alcohol
d) Kerosene
Answer: (d)
115. Phosphorus is stored in
a) water
b) Kept under open air
c) alcohol
d) Kerosene
Answer: (a)
116. Since metals produce ringing sounds, they are said to be ____.
a) Sound metal
b) Sonorous
c) Ring metal
d) malleable
Answer: (b)
117. A substance which cannot be broken down further by chemical reactions, by cooling, heating, or by electrolysis, is called ______
a) Metal
b) Non Metal
c) Element
d) Compound
Answer: (c)
118. They are not sonorous and are poor conductors of heat and electricity. These materials are
a) elements
b) Metals
c) Compound
d) Non metals
Answer: (d)
119. Resources present in unlimited quantity in nature and are not likely to be exhausted by human activities are called
a) Exhaustible Natural Resources
b) Inexhaustible Natural Resources
c) Exhaustible Resources
d) None of the above
Answer: (b)
120. Coal, Petroleum and natural gas are examples of
a) Exhaustible Natural Resources
b) Inexhaustible Natural Resources
c) Expensive Resources
d) None of the above
Answer: (a)
121. Naphthalene balls used to repel moth and insect is derived from
a) Petroleum
b) Sugar
c) Coal tar
d) LPG
Answer: (c)
122. CNG is the abbreviated form of
a) Combined natural gas
b) Compressed Natural Gas
c) Confirmed Natural gas
d) Condemned Natural gas
Answer: (b)
123. The slow process of conversion of dead vegetation into coal is called
a) Carbonisation
b) fuelification
c) Coalification
d) None of the above
Answer: (a)
124. In India petroleum deposit was first found in the state of
a) Gujarat
b) Maharastra
c) Assam
d) West Bengal
Answer: (c)
All competitive exams most important Bits
125. Use of CNG in automobile is better than petrol because it is
a) cheaper
b) Less polluting
c) Cannot be adulterated
d) All of the above
Answer: (d)
126. To reduce fuel consumption in automobile one should
a) Drive very fast to reach early
b) Not switch off the engine at traffic lights
c) Not check tyre pressure regularly
d) Ensure proper maintenance of the vehicle
Answer: (d)
127. Black gold is actually
a) Gold which became black on burning
b) Petroleum
c) Gold sold in black market
d) Diamond
Answer: (b)
128. The earth’s temperature is increasing due to Global warming which is due to
a) The Sun giving out more heat
b) The Earth slowly moving toward the sun
c) Increased use of fossil fuel
d) Less duration of winter every year
Answer: (c)
129. Deforestation means
a) Planting more trees
b) Designing a forest
c) Demanding a forest
d) Clearing of forests and using that land for other purposes.
Answer: (d)
130. Ill effect of deforestation is it
a) Increases temperature of earth
b) Increases pollution level
c) Increases CO2 level of atmosphere
d) All of the above
Answer: (d)
131. Increased level of carbon dioxide in the atmosphere traps the heat rays reflected by the earth causing an increase in the temperature on the earth. This is
a) Local warming
b) House warming
c) Global warming
d) Country warming
Answer: (c)
132. Part of the earth which supports life where living beings exists is called ____
a) Atmosphere
b) Biosphere
c) Biology
d) Biodiversity
Answer: (b)
133. Variety of organisms existing on the earth, their interrelationships and their relationship with the environment is called
a) Diversity
b) Biosphere
c) Biology
d) Biodiversity
Answer: (d)
134. Species of plants and animals which are found exclusively in a particular area are called
a) Endemic species
b) Exotic species
c) Local species
d) Specific species
Answer: (a)
135. Animals whose numbers are reducing to a level that they might face extinction are
a) Reducing species
b) Extinction species
c) Endangered species
d) Dangerous species
Answer: (c)
136. ____ is the Source book which keeps a record of all the endangered animals and plants.
a) Blue Data book
b) Red Data book
c) Green data book
d) Black data Book
Answer: (b)
137. Migratory birds fly to far off places in a particular season of the year because that place becomes
a) Very cold
b) Very hot
c) People hunt birds
d) Birds donot
Answer: (a)
138. Reforestation means
a) Planting trees
b) restocking of the destroyed forests by planting new trees.
c) Cutting trees
d) Burning trees
Answer: (b)
139. Hen’s egg is
a) An organ
b) A Single cell
c) A tissue
d) Is none of the above
Answer: (b)
140. Projections of different lengths protruding out of the body of Amoeba is called
a) Walking legs
b) Legs
c) Pseudopodia
d) Needle
Answer: (c)
141. Which of the following cells can change its shape
a) White blood cell
b) Egg cell
c) Red blood cell
d) All of the above
Answer: (a)
142. One millionth of a metre is
a) Millimetre
b) Micrometre
c) Nanometre
d) Centimetre
Answer: (b)
143. Which of the following combinations are present in plant cell but not in animal cell
a) Cell Wall & Plastid
b) Cell wall and Cell membrane
c) Plastid and Nucleus
d) Cell Membrane and Cytoplasm
Answer: (a)
144. Nucleus is separated from cytoplasm by
a) Protoplasm
b) Cell membrane
c) Cell Wall
d) Nuclear membrane
Answer: (d)
145. Robert Hooke first observed
a) Nucleus
b) Cells
c) organs
d) virus
Answer: (b)
146. A cell without organized nucleus is called
a) Prokaryotic cell
b) Eukaryotic cell
c) Virus
d) None of the above
Answer: (a)
147. Jelly-like substance present between the cell membrane and the nucleus is
a) Water
b) Nucleoplasm
c) Cytoplasm
d) oil
Answer: (c)
148. Chromosome carry _____ which transfers characters from parents to offsprings
a) Ribosome
b) Genes
c) Plastid
d) Mitochondria
Answer: (b)
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149. Human Male germ cell is
a) zygote
b) ovum
c) testis
d) sperm
Answer: (d)
150. Every month ____ mature egg(s) can be released from human ovary
a) 1
b) 2
c) 3
d) 4
Answer: (a)
151. Internal fertilization does not occur in
a) human
b) dog
c) fish
d) cow
Answer: (c)
152. Fertilization results into formation of
a) egg
b) zygote
c) sperm
d) individual
Answer: (b)
153. Which one is not an oviparous animal?
a) human
b) crow
c) hen
d) crocodile
Answer: (a)
154. The transformation of the larva into an adult through drastic changes is called
a) Metaphase
b) Metastasis
c) Meteorite
d) Metamorphosis
Answer: (d)
155. In asexual reproduction involves _______
a) Two parents
b) Four parents
c) One parent
d) No parents
Answer: (c)
156. Dolly the famous animal was a
a) donkey
b) girl
c) Cloned sheep
d) Normal sheep
Answer: (c)
157. During a cell division
a) Nucleus divides first and then cytoplasm
b) Cytoplasm divides first and then Nucleus
c) Nucleus and cytoplasm divides together
d) No such relationship
Answer: (a)
158. Budding is found in
a) Yeast
b) Hydra and Yeast
c) Hydra
d) None
Answer: (b)
159. Which of the following is a greenhouse gas?
a) Oxygen
b) Carbon dioxide
c) Nitrogen
d) Hydrogen
Answer: b) Carbon dioxide
160. Which of the following is responsible for carrying oxygen in our blood?
a) Red blood cells
b) White blood cells
c) Platelets
d) Plasma
Answer: a) Red blood cells
161. Which organ is responsible for filtering waste from the blood and producing urine?
a) Liver
b) Kidneys
c) Lungs
d) Heart
Answer: b) Kidneys
162. What is the process by which plants make their food using sunlight?
a) Respiration
b) Photosynthesis
c) Digestion
d) Fermentation
Answer: b) Photosynthesis
163. Which planet in our solar system is known as the “Red Planet”?
a) Venus
b) Mars
c) Jupiter
d) Saturn
Answer: b) Mars
164. What type of energy does a moving car have?
a) Thermal energy
b) Kinetic energy
c) Potential energy
d) Chemical energy
Answer: b) Kinetic energy
165. Which gas is essential for respiration in humans and animals?
a) Oxygen
b) Nitrogen
c) Carbon dioxide
d) Helium
Answer: a) Oxygen
166. Which of the following is NOT a renewable source of energy?
a) Solar energy
b) Wind energy
c) Fossil fuels
d) Hydroelectric energy
Answer: c) Fossil fuels
167. The process of conversion of water vapor into water droplets is known as:
a) Condensation
b) Evaporation
c) Precipitation
d) Sublimation
Answer: a) Condensation
168. Which part of a flower contains the pollen grains?
a) Petal
b) Sepal
c) Stamen
d) Pistil
Answer: c) Stamen
169. What is the process by which plants lose water vapor through tiny pores on their leaves?
a) Photosynthesis
b) Respiration
c) Transpiration
d) Absorption
Answer: c) Transpiration
170. Which gas is responsible for the “ozone layer” formation in the upper atmosphere?
a) Oxygen
b) Carbon dioxide
c) Nitrogen
d) Ozone
Answer: d) Ozone
171. The process of conversion of water from a liquid state to a gaseous state is known as:
a) Condensation
b) Evaporation
c) Precipitation
d) Sublimation
Answer: b) Evaporation
172. What is the primary function of the nucleus in a cell?
a) Energy production
b) Protein synthesis
c) Storage of water and nutrients
d) Control of cell activities and inheritance
Answer: d) Control of cell activities and inheritance
All competitive exams most important Bits
173. Which of the following diseases is caused by a deficiency of Vitamin C?
a) Scurvy
b) Rickets
c) Goiter
d) Beriberi
Answer: a) Scurvy
174. Which part of the human digestive system is responsible for absorbing most of the nutrients from the food?
a) Stomach
b) Small intestine
c) Large intestine
d) Esophagus
Answer: b) Small intestine
175. Which of the following materials is a good conductor of electricity?
a) Rubber
b) Plastic
c) Copper
d) Glass
Answer: c) Copper
176. What is the process by which a liquid changes into a solid by reducing its temperature?
a) Melting
b) Freezing
c) Evaporation
d) Condensation
Answer: b) Freezing
177. Which organelle is known as the “powerhouse” of the cell as it generates energy in the form of ATP?
a) Nucleus
b) Mitochondria
c) Chloroplast
d) Golgi apparatus
Answer: b) Mitochondria
178. What is the largest planet in our solar system?
a) Mercury
b) Venus
c) Earth
d) Jupiter
Answer: d) Jupiter
179. The process of converting milk into curd is an example of:
a) Condensation b) Fermentation
c) Evaporation d) Combustion
Answer: b) Fermentation
180. Which of the following is a renewable source of energy obtained from plant materials and animal waste?
a) Coal
b) Natural gas
c) Solar energy
d) Biomass
Answer: d) Biomass
181. Which type of mirror is used by dentists to see a larger image of the teeth?
a) Plane mirror
b) Convex mirror
c) Concave mirror
d) Cylindrical mirror
Answer: c) Concave mirror
182. Which component of blood is responsible for clotting and preventing excessive bleeding?
a) Red blood cells
b) White blood cells
c) Platelets
d) Plasma
Answer: c) Platelets
183. The process by which plants take in carbon dioxide from the atmosphere and release oxygen is called:
a) Transpiration
b) Respiration
c) Photosynthesis
d) Fermentation
Answer: c) Photosynthesis
184. Crop plants get dissolved nutrients easily from:
(a) Manure (b) Fertilizer
(c) both (a) & (b) (d) None
Answer: (c) both (a) & (b)
185.The habitats of microorganisms are
(a) Moist soil (b) dirty water
(c) Air (d) All of these
Answer: (d) All of these
186. The process of conversion of sugar into alcohol is
(a) Vaccination (b) Pasteurization
(c) Fermentation (d) None of these
Answer: (c) Fermentation
187. In which medium, the yeast can breed fastly
(a) Salt solution (b) Sugar solution
(c) distilled water (d) All of these
Answer: (b) Sugar solution
188. The fabrics which soak less water is
(a) synthetic fabric (b) Natural fabric
(c) both (a) & (b) (d) None of these
Answer: (a) synthetic fabric
189. Which of these is bad conductor of electricity?
(a) graphite (b) coal (c) gold (d) None
Answer: (b) coal
190. Which of these metal can displace the copper from its salt solution?
(a) Gold (b) Copper
(c) Zinc (d) None of these
Answer: (c) Zinc
191. When iron nail is put in copper sulphate solution, then there will form________and copper.
(a) Copper sulphate (b) Iron sulphate
(c) Zinc sulphate (d) None
Answer: (b) Iron sulphate
192. Which of these is essential for burning?
(a) Carbon dioxide (b) Nitrogen
(c) Oxygen (d) All of these
Answer: (c) Oxygen
193. A Combustible substance does not catch fire if its temperature is _______ its ignition temperature
(a) above (b) below (c) more (d) none
Answer: (b) below
194. The animals found in particular area are called
(a) fauna (b) flora
(c) both (a) & (b) (d) none
Answer: (a) fauna
195. Which of these is an example of unicellular animals?
(a) paramecium (b) hydra
(c) Ant (d) All of these
Answer: (a) paramecium
196. Name the colouring substance which is used to prepare a mount of onion cell is
(a) Methyl orange (b) Methylene blue
(c) Safranin (d) None of these
Answer: (c) Safranin
197. What is the different part of plant cell, which differentiate it from animal cell
(a) Cell wall (b) Cell membrane
(c) Nucleus (d) Mitochondria
Answer: (a) Cell wall
198. The mode of reproduction in Hydra is
(a) sexual reproduction (b) asexual reproduction
(c) both (a) & (b) (d) None of these
Answer: (b) asexual reproduction
199. Budding takes place in
(a) Amoeba (b) Hydra
(c) Fist (d) Frog
Answer: (b) Hydra
200. Yeast is used in the production of
A. Sugar
B. Alcohol
C. hydrochloric acid
D. oxygen
Answer: B. Alcohol
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