TNPSC Group I Exam-Previous Year Question Paper-Subject wise Analysed Questions-Science-Part 15
351. Match
List - I with List - II and select the correct answer using the
codes given below:
List - I List - II
a) Neutral
Ferric chloride 1. Identification of sulphur in Solution
b) Fehling’s nitroprusside 2. To identify phenolic group
c) Sodium
nitroprusside 3. To identify phosphate
d) Ammonium
molybdate reagent 4. To identify reducing sugars
Codes:
a b c d
A) 3 1 4 2
B) 2 4 1 3
C) 2 3 4 1
D) 2 1 4 3
Answer:
(B)
352. Petroleum
mainly contains
A) Aliphatic
hydrocarbons
B) Aromatic hydrocarbons
C) Aliphatic alcohols
D) None
Answer: (B)
353. Bhopal gas
tragedy of 1984 was caused by one of the following compounds:
A) CO B) COCI2
C) Methyl isocyanide D) Methyl
isocyanate
Answer: (C)
354. pH of blood
is
A) 8 B) 7.4
C) 6.4 D) 4
Answer: (B)
355. The
blue colour of water in the sea is due to
A) absorption
of other colours except blue by water molecules
B) scattering of blue light by water
molecules
C) refraction of blue light by impurities
in sea water
D) refraction
of blue sky by sea water
Answer: (B)
356. The acid
present in vinegar is
A) CH3COOH B) H2SO4
C) HCl D) HNO3
Answer: (A)
357. When a lead
storage battery in discharged
A) SO2
is evolved
B) Lead is formed
C) Lead sulphate is consumed
D) H2SO4 is consumed
Answer: (D)
358. Combustion
chemically is
A) Decomposition
B) Reduction
C) Slow oxidation
D) Rapid oxidation
Answer: (A)
359. In plants,
energy is produced during
A) Transpiration
B) Photosynthesis
C) Respiration
D) Absorption
Answer: (B)
360. The
yellowing of leaf is caused by the deficiency of
A) Iron B) Cobalt
C) Copper D) Zinc
Answer: (D)
361. Identify the
correct sequence of evolution in plants:
A) Pteridophyte - Gymnosperms - Thallophyte - Bryophyte
B) Gymnosperms - Pteridophte - Bryophyte -
Thallophyte
C) Bryophyte - Pteridophyte - Gymnosperms -
Thallophyte
D) Thallophyte - Bryophyte - Pteridophyte -
Gymnosperms
Answer: (D)
362. The vascular
bundles arranged in a cycas petiole is
A) T
- shaped B) L - shaped
C) C - shaped D) Inverted omega (W) shapped
Answer: (D)
363. Which one of
these is correctly matched?
A) Paddy -
Blast disease
B) Sugarcane - Ring disease
C) Potato - Leaf spot
D) Groundnut - Red rot
Answer: (A)
364. When the
soil is rich organic debris, it is known as
A) Humus
soil B) Clayey soil
C) Loam soil D) Organic
soil
Answer: (A)
365. A plant
growing inside another plant of different species symbiotically
is
called
A) Parasite B) Saprophyte
C) Semi - parasite D) Endophyte
Answer: (D)
366. “Survival of
the fittest” was proposed in his theory evolution by
A) Darwin B) Mendel
C) Loam soil D) De
vries
Answer: (A)
367. In rich
polish which is left as a residue
A) is
of no value
B) has the same nutritive value
C) twice as nutritious as rice
D) None of these
Answer: (D)
368. The
pteridophyte produces two kinds of spores
A) Lycopodium B) Selaginella
C) Psilotum D) Adiuantum
Answer: (B)
369. Lepidodendron
is a fossil which represents
A) Root B) Stem
C) Fruit D) Leaf
Answer: (B)
370. These cells
are loosely arranged in a plant body
A) Parenchyma B) Collenchyma
C) Sclerenchyma D) Aerenchyma
Answer: (A)
371. Maximum rate
of photosynthesis occurs in
A) White
light B) Red light
C) Green light D) Red
and blue light
Answer: (A)
372. Resupination
is a characteristic feature to the flowers of this family
A) Oleaceae B) Myrtaceae
C) Orchidaceae D) Malvaceae
Answer: (C)
373. The
substituted food contains one of the following is
A) Fat B) Water
C) Carbohydrate D) Protein
Answer: (C)
374. When aerobic
and anaerobic methods of respiration are compared
regarding
their efficiency in energy release,
A) aerobic
method is more efficient than anaerobic method
B) anaerobic method is more efficient than
aerobic method
C) both the methods are exactly equal
D) both
the methods are approximately equal
Answer: (A)
375. Which
one of the following is incorrectly matched?
Common name Scientific name
A) Jelly fish - Anabas
B)
Silver fish - Lepisma
C)
Lung fish - Cycloid scales
D)
Cuttle fish - Sepia
Answer: (A)
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