Attempt this Science test in CBT mode to check your basics of Science. We have included 45 multiple-choice questions (MCQs) to this test comprising all three streams of Science Physics, Chemistry, and Biology.
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Direction: (Q.1 - Q.15 Physics part)
Q.1.
Galvanized iron is coated with a thin coating of-
- copper
- zinc
- aluminium
- white lead
Answer:
(b) zinc
Q.2.
In the visible spectrum the colour having t he shortest wavelength is-
- Violet
- blue
- yellow
- Red
Answer:
(a) Violet
Explanation: in the term of wavelength the order of spectrum is (shortest to longest)
↓ V -Violet
↓ I = Indigo
↓ B = Blue
↓ G = Green
↓ Y = Yellow
↓ O = Orange
R = Red
Explanation: in the term of wavelength the order of spectrum is (shortest to longest)
↓ V -Violet
↓ I = Indigo
↓ B = Blue
↓ G = Green
↓ Y = Yellow
↓ O = Orange
R = Red
Q.3.
Which of the following is the most viscous medium?
- Coaltar
- Water
- Alcohol
- Air
Answer:
(a) Coaltar
Q.4.
A pond of clear water appears less deep than it really is. This is due to-
- Reflection
- refraction
- The transparency of water
- Dispersion
Answer:
(b) refraction
Q.5.
Conversion of heat into electrical energy can be achieved by using a -
- ammeter
- hydromere
- voltmeter
- thermocouple
Answer:
(d) thermocouple
Explanation: A thermocouple is an electrical device consisting of two dissimilar electrical conductors forming an electrical junction. A a thermocouple produces a temperature-dependent voltage as a result of the the thermoelectric effect and this voltage can be interpreted to measure temperature
Explanation: A thermocouple is an electrical device consisting of two dissimilar electrical conductors forming an electrical junction. A a thermocouple produces a temperature-dependent voltage as a result of the the thermoelectric effect and this voltage can be interpreted to measure temperature
Q.6.
What is the SI unit of pressure ?
- Pascal
- Dyne
- Newton
- Jule
Answer:
(a) Pascal
Q.7.
What is the full form of RADAR ?
- Radio Detecting and Ranging
- Radio Detect and Rangs
- Radio Device and Ranging
- Region Device and Ranging
Answer:
(a) Radio Detecting and Ranging
Q.8.
Which of the following is the fastest communication channel ?
- Radio wave
- All are operating at nearly the same propagation speed
- Optical fiber
- Microwave
Answer:
(d) Microwave
Q.9.
Light from the sun reaches us in nearly
- 5 min
- 4.30 hrs
- 5.30 hrs
- 8 min
Answer:
(d) 8 min
Q.10.
Which Colour has the Longest Wavelength
- Violet
- Yellow
- White
- Red
Answer:
(d) Red
Q.11.
The capacity of communication channel is measured in
- Band rate
- Band width
- Data flow
- Bit capacity
Answer:
(b) Band width
Q.12.
Which of the following has the highest frequency ?
- x-rays
- cosmic rays
- microwaves
- radio waves
Answer:
(b) cosmic rays
Q.13.
In a freezer ice cube will be formed more quickly in trays made of
- rubber
- plastic
- aluminium
- wood
Answer:
(c) aluminium
Q.14.
Atmospheric pressure exerted on earth due to
- gravitational pull
- rotation of earth
- revolution of earth
- uneven heating of earth
Answer:
(a) gravitational pull
Q.15.
Which of the following is vector quantity ?
- momentum
- pressure
- Energy
- work
Answer:
(a) momentum
Direction: (Q.16 - Q.30 Chemistry part)
Q.16.
Neutrons were discovered by
- James Chadwick
- Ernest Rutherford
- J. J. Thomson
- John Dalton
Answer:
(a) James Chadwick
Explanation: When James Chadwick was bombarding alpha particles on beryllium, he saw that a particle was emanating. This particle was neutron.
Explanation: When James Chadwick was bombarding alpha particles on beryllium, he saw that a particle was emanating. This particle was neutron.
Q.17.
Atomic mass of an element equal to the sum of number of
- electrons and protons only
- protons and neutrons only
- electrons and neutrons only
- electrons, protons and neutrons
Answer:
(b) protons and neutrons only
Q.18.
Which one of the following is the largest composition in biogas ?
- Carbon dioxide
- Methane
- Hydrogen
- Hydrogen sulphide
Answer:
(b) Methane
Q.19.
The number of maximum electron in N shell is -
- 2
- 8
- 18
- 32
Answer:
(d) 32
Q.20.
Vinegar is also known as -
- ethanoic acid
- nitric acid
- sulphuric acid
- tartaric acid
Answer:
(a) ethanoic acid
Q.21.
Which of the following burns by producing a yellow, luminous flame ?
- coal
- LPG
- Wax
- charcoal
Answer:
(c) Wax
Q.22.
The modern periodic table was prepared by -
- Dobereiner
- Newlands
- Bohr
- Mendeleev
Answer:
(c) Bohr
Q.23.
Plaster of Paris is made up of -
- Marble
- Cement
- Gypsum
- Limestone
Answer:
(c) Gypsum
Q.24.
How much amount of urea will be required for supplying 1 kg of nitrogen ?
- 2.0 kg
- 2.2 kg
- 2.5 kg
- 2.7 kg
Answer:
(b) 2.2 kg
Q.25.
Oxygen is absent in -
- Kerosene
- Glass
- Soil
- Cement
Answer:
(a) Kerosene
Q.26.
The pH value of water is
- 4
- 7
- 12
- 18
Answer:
(b) 7
Q.27.
Which of the following is also known as laughing gas ?
- Nitric oxide
- Nitrous oxide
- Nitrogen pentoxide
- Nitrogen
Answer:
(b) Nitrous oxide
Q.28.
Who is regarded as the father of modern chemistry ?
- Rutherford
- Einstein
- Lavoisier
- C. V. Raman
Answer:
(c) Lavoisier
Q.29.
The cooking gas LPG mainly consist of
- Ethene
- Propene
- Propane and Butane
- Ethyne
Answer:
(c) Propane and Butane
Q.30.
What is the dominant chemical present in detergent powder ?
- Hydrochloric acid
- Sodium carbonate
- Calcium carbonate
- Sodium alkyl sulphate
Answer:
(b) Sodium carbonate
Direction: (Q. 31 - Q. 45 Biology Part)
Q.31.
which one of the following plant tissues has dead cells ?
- Epidermis
- Parenchyma
- Collenchyma
- Sclerenchyma
Answer:
(d) Sclerenchyma
Explanation: Sclerenchyma has dead cells and also composed of various woody cells. This tissue is present in the stem, root and other parts of the plants, where dead cell is present.
Explanation: Sclerenchyma has dead cells and also composed of various woody cells. This tissue is present in the stem, root and other parts of the plants, where dead cell is present.
Q.32.
Lights enters the eye through a thin membrane called
- retina
- cornea
- pupil
- iris
Answer:
(b) cornea
Q.33.
Which of the following is not a Reptile ?
- Green-turtle
- Crocodile
- Salamandra
- Garden Lizard
Answer:
(c) Salamandra
Q.34.
which of the following statements is not a micronutrient in plants ?
- Iron
- Manganese
- Copper
- Magnesium
Answer:
(d) Magnesium
Q.35.
Red colour of tomato is caused due to the presence of
- Vitamin C
- Lycopene
- Chromoplasts
- Leucoplasts
Answer:
(b) Lycopene
Q.36.
Which acid is produced in human stomach for digestion purpose ?
- Sulphuric Acid
- Hydrochloric Acid
- Acetic Acid
- Nitric Acid
Answer:
(b) Hydrochloric Acid
Q.37.
Chromosome number in any species
- increase by age
- decrease by age
- is constant
- increase with the weight
Answer:
(c) is constant
Q.38.
In human body percentage of which element is highest?
- Hydrogen
- Nitrogen
- Carbon
- Oxygen
Answer:
(d) Oxygen
Q.39.
Mother's milk provides almost complete diet to the new born , but it lacks the following
- Iron
- Calcium
- Magnesium
- Potassium
Answer:
(a) Iron
Q.40.
Tulsi plant has medicinal values due to presence of the following
- Inorganic acid
- Organic acid
- Phenols and Flavonoids
- None of the above
Answer:
(c) Phenols and Flavonoids
Q.41.
The exposed skin of our body starts cracking in winter season due to
- rainy season,
- high humidity
- summer season
- low humidity
Answer:
(d) low humidity
Q.42.
AIDS is caused by
- Helminth
- Bacteria
- Fungus
- Virus
Answer:
(d) Virus
Q.43.
Which nutrient provides the maximum energy on breakdown?
- Fibres
- Proteins
- Fats
- Carbohydrates
Answer:
(c) Fats
Q.44.
Which organ in the human body helps to maintain balance ?
- Heart
- Liver
- Ear
- Brain
Answer:
(c) Ear
Q.45.
Hemoglobin is the protein inside red blood cells that carries
- Oxygen
- Carbon dioxide
- Nitrogen
- Ozone
Answer:
(a) Oxygen
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