Science : Mock Papers
Mock Question Paper 4
Q1. Which of the following chemicals is used for preserving fruit juices?
A. Ammonium sulphate
B. Sodium Hydroxide
C. Sodium Benzoate
D. Potassium Nitrate
Q2. Which of the following is not a cereal?
A. Rice
B. Musary
C. Barley
D. Maize
Q3. Khaira is a plant disease caused due to deficiency of
A. Iron
B. Nitrogen
C. Carbon
D. Zinc
Q4. Plants that are derived from the vegetative organs of a single plant are known as
A. Clones
B. Hybrids
C. Polyploids
D. Haploids
Q5. Weedicide used for rice is
A. DDT
B. Dalapon
C. 2,4 D
D. Ammonium sulfamate
Q6. Which of the following cell organelles functions as the power house of a living cell?
A. Chloroplast
B. Mitochondria
C. Ribosome
D. Golgi Apparatus
Q7. Transfer of genetic imformation from one generation to the other is accomplished by
A. DNA
B. Messenger RNA
C. Transfer RNA
D. Both B & C
Q8. Which of the folowing is a physical basis of life?
A. Mitochondria
B. Ribosome
C. Protoplasm
D. Nucleus
Q9. A plasmid is
A. A component of the cell wall
B. A part of the plasma membrane
C. A vesicle full of digestive enzymes
D. An extra-chromosomal genetic element
Q10. In which of the following cell organelles do photo and thermochemical reactions occur in different sites?
A. Mitochondria
B. Chloroplasts
C. Ribosomes
D. Lysosomes
Q11. Which of the following terms is used for several individuals of a species living together in a locality?
A. Biosphere
B. Ecosystem
C. Bio-community
D. Population
Q12. Which of the following chemicals is responsible for the depletion of ozone layer in the atmosphere?
A. Chlorofluorocarbons
B. Nitrous oxide
C. Sulphur Dioxide
D. Carbon Dioxide
Q13. Light emitted by sun reaches earth in
A. 1 sec
B. 10 sec
C. 13 sec
D. 8 sec
Q14. Nutrients are recycled in the atmosphere with the help of certain micro-organisms referred to as
A. Producers
B. Consumers
C. Decomposers
D. None of these
Q15. If all the plants of the world die, all the animals will also die due to shortage of
A. Shelter
B. Cold Air
C. Food
D. Oxygen
Q16. The earth's atmosphere was ............ in nature
A. Reducing
B. Oxidising
C. Neutral
D. None of these
Q17. Who amongst the following is the propounder of the theory of Natural Selection?
A. Lamarck
B. Charles Darwin
C. Hugo-de-Vries
D. Gregor Mendel
Q18. The species to which we belong is
A. Homo sapiens
B. Homo Crectus
C. Australopithecus robustus
D. None of these
Q19. The organs which are morphologically different but perform the same function are called
A. Homologous organs
B. Analogous organs
C. Vestigial organs
D. None of these
Q20. Which of the following were first formed?
A. Genes
B. Cells
C. Eobionts
D. Coacervates
Q21. Who developed the telegraphic code?
A. Andre Ampere
B. Samuel Morse
C. Joseph Henry
D. Jean Fourier
Q22. Which of the following laws is explained by the statement that matter can neither be created nor be destroyed?
A. Law of Conservation of Energy
B. Le Chateler's Principle
C. Law of conservation of Mass
D. Law of Osmosis
Q23. The laws of planetary motion were descovered by
A. Galileo
B. Isaac Newton
C. Thomas Edison
D. Johannes Kepler
Q24. The mass-energy relation is the outcome of
A. Quantum theory
B. General theory of relativity
C. Field theory of energy
D. Special theory of relativity
Q25. Who invented Radar?
A. Robert Watson Watt
B. Max Planck
C. Humphry Davy
D. Henry Becquerel
Q26. Laproscopy is connected with
A. Radars
B. Science of tissues
C. Study of laser beams
D. Gynaecological operation
Q27. The Electric Lamp was discovered by
A. Ford
B. Marconi
C. Edison
D. None of these
Q28. The steam engine was invented by
A. James Watt
B. James Prescott Joule
C. Newcommen
D. Isaac Newton
Q29. Bernouli's equation pertains to the
A. Flow of electric
B. Flow of heat current
C. Flow of liquids
D. Photoelectric effect
Q30. The law of definite proportions is associated with the name of
A. Proust
B. Lavoisier
C. Dalton
D. Gay-Lussac