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Science | GJ Board | Grade 10 | 2016
Q. Which of the following(s) is/are called fossil fuel?
  1. Petroleum
  2. Mineral Coal
  3. Natural Gas
  4. All of the above
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Q. From which of the following, methanol is not used?
  1. Used as raw material in plastic industry
  2. To preserve residues of dead animals
  3. For making dyes, phenol and polymer
  4. In production of ammonia
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Q. Which of the following is a mis-matched pair?
  1. Estrogen - Ovary
  2. Testosterone - Testis
  3. Insulin - Pancreas
  4. Adrenaline - Pituitary gland
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Q. Which sentence is not true in context with house hold waste management?
  1. Throwing waste in garbage
  2. Buy loose fruits and vegetables to avoid packaging
  3. Increase the uses of polythene
  4. Use rechargeable batteries
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Q. When we destroy forest, what we are actually destroying is:
  1. only food for wild life
  2. only wild life's habitat
  3. only trees
  4. our environment
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Q. Make the correct pairs from below mentioned X and Y.
XY
a) Dehydrating agent1) Sulphur dioxide gas
b) In preparation of fire crackers2) Concentrated sulphur acid
c) Weak bleaching agent3) Dihydrogen gas
d) Lightest gas4) Sulphur

  1. (a3), (b2), (c4), (d1)
  2. (a2), (b4), (c1), (d3)
  3. (a4), (b3), (c1), (d2)
  4. (a3), (b1), (c2), (d4)
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Q. The general formula for alcohol series is CnH2n+1OH. What is the formula for alcohol containing four carbon?
  1. C5H11OH
  2. C4H9OH
  3. C4H8OH
  4. C3H8OH
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Q. Which statement is true for structure of human heart?
  1. There is a bicuspid valve between right atrium and right ventricle
  2. The walls of atria are thin while the wall of ventricles are thick
  3. There is a tricuspid valve between left atrium and left ventricle
  4. The upper two chambers of heart is called ventricles and lower two chambers is called atria
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Q. Properties of one gas is given below.
1) It is produced by Haber's process
2) It possesses very intensive smell, causing irritation in the nose and eyes
3) It is highly soluble in water
4) Its aqueous solution acts as a weak base
Identify the gas:

  1. SO2
  2. H2
  3. NH3
  4. N2O
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Q. The food we take in our body travels through a long and complex path. Which starts from mouth and ends at anus? Which is the correct sequence of process on food in digestive system?
  1. Digestion Absorption Egestion Ingestion
  2. Digestion Ingestion Absorption Egestion
  3. Ingestion Digestion Absorption Egestion
  4. Ingestion Egestion Digestion Absorption
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Q. Which component obtained from the refining of petroleum is used as a solvent in petrochemicals?
  1. Tar
  2. Kerosene
  3. Naptha
  4. Petroleum coke
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Q. What is called the movement of plant towards gravity?
  1. Chemotropism
  2. Geotropism
  3. Hydrotropism
  4. Phototropism
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Q. By which name, the short tubular region after Bowman's capsule in kidney, is known?
  1. Proximal tubule
  2. Neck
  3. Henle's loop
  4. Distal tubule
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Q. In the table, the properties of some specimens are given.
SpecimenMelting PointShiningMalleabilityElectric conductivity
PHighmoreNoinsulator
QHighlessNoconductor
RHighmoreYesconductor
SLowlessYeslow conductor

Which of the specimen is a metal?

  1. Q
  2. R
  3. P
  4. S
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Q. In which part of the body blood gets purified (becomes oxygenated)?
  1. Atrium
  2. Lungs
  3. Heart
  4. Ventricle
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Q. Water-gas is a mixture of which gases?

P: Carbon dioxide
Q: Hydrogen
R: Carbon monoxide

  1. P and R
  2. Q and R
  3. P and Q
  4. P, Q and R
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Q. Properties of one of the mineral coal is given below. Identify the mineral coal:
1) It is a matured form of mineral coal
2) It contains 94 to 98% carbon
3) Its heat energy is about 33 kJ gram1
  1. Bituminous coal
  2. Lignite
  3. Peat
  4. Anthracite
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Q.
Which of the following statements are incorrect?
Statement 1: Non-metals possess the property of ductility and malleability
Statement 2: Non-metallic elements are brittle
Statement 3: Metals can produce ringing sound by striking
Statement 4: Melting points and boiling points of metals are low

  1. 1 and 3
  2. 2 and 3
  3. 1 and 4
  4. 2 and 4
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Q. One girl student uses the liquid compound to remove nail paint from her nail. The liquid compound removes the nail paint from her nail. Give the name of this compound.
  1. Formalin
  2. Acetic acid
  3. Ethanol
  4. Propanone
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Q. An important parameter that determines the functioning of nano material is surface area to volume ratio. Because of which reason small granules of sugar dilute faster than big piece of sugar cube?
  1. SAV ratio of sugar granules is smaller than sugar cube
  2. Cannot say anything without knowing temperature of solvent
  3. SAV ratio is same for sugar and sugar cube
  4. SAV ratio of sugar granules is larger than sugar cube
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Q. Which displacement reaction will not occur among the following reactions?
  1. Fe+CuSO4
  2. Mg+CuSO4
  3. Cu+FeSO4
  4. Zn+CuSO4
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Q. Make a proper pair:

a) Fullerene
b) SWNT
c) MWNT
d) Carbon nano buds

625491_3b93b937f08a432880ddfe109796fcaa.jpg
  1. a2, b4, c1, d3
  2. a1, b3, c4, d2
  3. a4, b2, c1, d3
  4. a3, b1, c2, d4
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Q. Which statement is wrong from the following for the reflection by plane mirror?
  1. Object distance and image distance is same
  2. The size of image is same as size of object
  3. Image of the object in not laterally inverted
  4. A plane mirror forms virtual and erect image
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Q. The following chart depicts the fertilization between male and female during sexual production.

Male reproductive organP Male gametes R
Zygote
Female reproductive organ Q Female gametes S

Which is true for P, Q, S and R from the following?
Sr. No.PQRS
1.Sperms
TestisOvaOvary
2.TestisOvarySpermOva
3.UterusPenisOvaSperms
4.PenisUterusSpermsOva

  1. Sequence - 3
  2. Sequence - 2
  3. Sequence - 1
  4. Sequence - 4
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Q. What does the figure indicates given below?
625437_0b5ef95375ca4cbd8a272f56faff5636.png
  1. Binary fission in Amoeba
  2. Formation on temporary finger like projection in Amoeba
  3. Buddin in yeast
  4. Formation of cyst in Amoeba
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Q. During which process blood is filtered out in Bowman's capsule?
  1. Reabsorption
  2. Secretion
  3. None of them
  4. Ultrafiltration
GJ Board
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Q. Which is the correct sequence in context with the least bio degradable to most biodegradable material?
  1. Plastic, Bones, Paper, Metal Can
  2. Paper, Metal Can, Bones, Paper
  3. Bones, Plastic, Paper, Metal Can
  4. Plastic, Metal Can, Bones, Paper
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Q. Which gas is produced during the reaction of base with metals?
  1. Dioxygen
  2. Dihydrogen
  3. Carbon dioxide
  4. Dinitrogen
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Q. Which process is important for production gametes in living organism performing sexual production in context with chromosomes?
  1. Inequal fission
  2. Meosis
  3. Mitosis
  4. Multiple fission
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Q. In three test tubes P, Q, and R iron nails, water, oil and anhydrous calcium chloride is taken. Among these test tubes, in which test tubes corrosion of nails will not take place?
625391_18ea6dcaf8924ec686715f138a594897.png
  1. P, Q and R
  2. P and R
  3. P and Q
  4. Q and R
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