Everyday Science Online MCQs Set 7

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Everyday Science Online MCQs Set 7 MCQs with Answers

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Pig iron is also called……..?

A. Cast iron
B. Steel
C. Wrought iron
D. Stainless steel

If steel is heated to a temperature well below red heat and is then cooled slowly, the process is called………?

A. Annealing
B. Quenching
C. Tempering
D. Nitriding

The temperature at which two conjugate solutions change into one homogeneous solution is called……….?

A. Azeotrope
B. Conjugate temperature
C. Consolute temperature
D. Eutectic point

Who is the Father of Genetics?

A. Gregor Mendel
B. Alexendar
C. Darewin
D. Louis pasture

Mostly which gases found of the planet Jupiter?

A. Hydrogen
B. Chlorine
C. Hydrogen and Helium
D. Neon

Which of the following type of Coal, has maximum carbon content?

A. Peat
B. Lignite
C. Anthracite
D. Bituminious

Stethoscope was invented by ……. ?

A. Rene Laennec
B. Steven Sasson
C. Martin Cooper
D. Dave Hyatt

What is the molecular formula for Nitric acid …….. ?

C. HN2O2
D. H2NO4

The medical branch of science that deals with the study of skin, its functions, diseases, & treatment is …….. ?

A. Dermatology
B. Dormatology
C. Deontology
D. Dermatoglyphics

The scientific study of fingerprints is called ……… ?

A. Dactylography
B. Dactylology
C. Dactyliology
D. Dialectology

The discovery of neutron became very late because ……. ?

A. It does not carry any charge
B. It does not move
C. It is a fundamental particle
D. It is present in nucleus

The absolute value of charge on electron was determined by …….. ?

A. J.J.Thomson
B. Chadwick
C. Rutherford
D. Robert Millikan

What is the molecular weight of Ammonia (NH3) …….. ?

A. 17.031 g/mol
B. 18.031 g/mol
C. 19.031 g/mol
D. 27.033 g/mol

What is the molecular formula for Ammonia?

B. NH2
C. NH3
D. NH4

What is the third most common gas found in the air we breathe …….. ?

A. Hydrogen
B. Neon
C. Carbondioxide
D. Argon

What is the Molecular Formula for Glucose ……. ?

A. C4H10O6
B. C5H11O6
C. C6H12O6
D. S6H12O6

Which of the following is a diverse group of hydrophobic molecules?

A. Carbohydrates
B. Lipids
C. Proteins
D. Nucleic acids

What is the chemical formula for Sulfuric acid?

A. C2H6O
B. CaSO4
C. C2H4O2
D. H2SO4

The M.K.S. system was first introduced by ……… ?

A. Giorgi
B. Archimedes
C. Eienstein
D. Newton

A mixture of sand and naphthalene can be separated by …….. ?

A. Chromatography
B. Fractional distillation
C. Sublimation
D. None of these

What is the chemical formula for Sodium carbonate ……. ?

A. Na3CO2
B. CNa2O3
C. Na2CO3
D. Na3CO3

A ‘breath test’ used by traffic police to check drunken driving uses ….?

A. Turmeric on filter paper
B. Silica gel coated with silver nitrate
C. potassium permanganate-sulphuric acid
D. Potassium dichromatic-sulphuric acid

Brass gets discoloured in air because of the presence of which of the following gases in air …….. ?

A. Carbon dioxide
B. Oxygen
C. Nitrogen
D. Hydrogen sulphide

Hydrogen bomb is based on the principle of …….. ?

A. Nuclear fusion
B. Artificial radioactivity
C. Natural radioactivity
D. Nuclear fission

Elements which have same number of protons but different number of neutrons are called as ……… ?

A. Isotopes
B. Isomers
C. Allotropes
D. Allomers

Proton number is denoted by symbol ………. ?

A. M
B. Z
C. P
D. A

When an acid reacts with a metal, which one of the following gas is usually liberated?

A. Ammonia Gas
B. Chlorine
C. Oxygen
D. Hydrogen gas

The protein Improtin-11, that was recently identified by scientists, is linked with causing which type of cancer?

A. Blood Cancer
B. Colorectal Cancer
C. Lung Cancer
D. Prostate Cancer

The study of X-rays and their medical applications is called ……… ?

A. Radiology
B. Raciology
C. Rheumatology
D. Rheology

Permanent hardness of water due to sulphate of metals can be destroyed by the use of …….. ?

A. Zeolites
B. Sulphonides
C. Lime
D. Nitrates

What is the Chemical formula of Zinc Hydroxide ……… ?

A. Zn(OH)2
C. Zn2(OH)3

The valency of carbon Atom is ………. ?

A. 1
B. 2
C. 3
D. 4

What is the Medical term for Fever?

A. HHypothermia
B. Pyrexia
C. Hypertension
D. Thermophilia

In context of environment, the term “dirty dozen” refers to …..?

A. 12 most harmful greenhouse gases
B. 12 ozone depleting substances
C. 12 persistent organic pollutants
D. None of the above

Only male frog produce croacking sound because ……… ?

A. Male frog can magnify their voice with the help of sound box.
B. Male frog have three pair of vocal cord
C. Female frog have larynx but no vocal cord
D. Female frog have no larynx

During rainy season Wooden doors are difficult to open or closure because of …….. ?

A. Plasmolysis
B. Imbibition
C. Osmosis
D. Diffusion

The Study of growth is called …… ?

A. Auxology
B. Autology
C. Avionics
D. Axiology

How many Number of eyes found in Earthworm?

A. One
B. Many
C. No eye
D. Two

Botany is also called ……. ?

A. Phytology
B. Phycology
C. Pedology
D. Plantophyta

The study of the structure of the body is called ……. ?

A. Anthropobiology
B. Anatomy
C. Aphnology
D. Apiology

What is the photometer?

A. Testing picture Quality
B. Measuring light Intensity
C. Measuring Size of Picture
D. Checking colors and Pictures

The only vitamin which can not be stored in human body?

A. Vitamin C
B. vitamin D
C. vitamin K
D. None of these

What is the scientific name of flying fish ?

A. Exocoetidae
B. Anoplopoma fimbria
C. Orthopsetta sordida
D. Xiphias gladius

The human heart is ……. ?

A. Ampullary Heart
B. Pulsating Heart
C. Myogenic Heart
D. Neurogenic Heart

Which of the following pairs belong to the category of cold blooded animals?

A. Snakes and birds
B. Bat and rats
C. Frog and snakes
D. Birds and monkey

What type of a mirror is used in anti-shop-lifting-devices?

A. Convex mirror 
B. Concave mirror
C. Plane mirror
D. Both (b) and (c)

Why the colour of the Ocean appears blue?

A. Because the sunlight falling on it is scattered.
B. Because the sunlight falling on it is absorbed.
C. Because the sunlight falling on it is refracted.
D. Because the sunlight falling on it is reflected.

The distance between the optical centre of a convex lens and its principal focus is called its…….?

A. Focal Length
B. Radius of Curvature
C. Power
D. Magnification

The distance of a place South or North of equator is called……….?

None of these

A convex mirror always ……….. ?

A. Forms a real image
B. Forms a virtual image 
C. Forms an inverted image
D. Produces a larger image

Which among the following types of lenses are prescribed by doctors for a patient suffering from astigmatism?

A. Cylindrical Lens  
B. Concave Lens
C. Spherical Lens
D. Convex Lens

A doctor who specializes in diseases of the nose?

A. Rhinologist
B. Otologist
C. Pathologist
D. Podiatrist

What animal has longest gestation period of about 640 to 660 days or 95 weeks of any land animal ?

A. Blue Whale
B. Elephant
C. Opossum
D. None of these

Which of the following is a force?

A. Heat
B. Light
C. Magnetism 
D. Kinetic

Dioptre is a unit of measurement for ………. ?

A. Current
B. Lens
C. Force
D. Focal Length

Transistor is a device that convert weak signal into……….?

A. small signal
B. strong signal
C. both
D. none

Second name of ethyl alcohol is………..?

A. Ethene
B. Ethanol
C. Propyle
D. none

Eletromagneticism is the branch of………..?

A. Chemistry
B. Physics
C. Both
D. None of these

Which one of the following non-metals is not a poor conductor of electricity?

A. Sulphur
B. Selenium
C. Bromine
D. Phosphorus

Which of the following is the world’s loudest bird ?

A. White bellbird 
B. Peacock
C. Piha
D. None of the above

Which of the following is used in beauty parlours for hair setting?

A. Silicon
B. Chlorine
C. Sulphur 
D. Phosphorus

Which of the following is not a chemical reaction ?

A. Burning of coal
B. Conversion of water into steam
C. Digestion of food
D. Burning of paper

Which of the following is commonly called a polyamide ?

A. Rayon
B. Nylon 
C. Terylene
D. Orion

Which of the following protects the body against infectious disease and foreign invaders?

A. Leukocytes
B. Red blood cells
C. Endoplasmic reticulum (ER)
D. Golgi apparatus

What’s the Strongest Muscle in the Human Body based on its weight?

A. Hands
B. Masseter
C. Neck
D. Legs

Which of the following is the study of micro- organisms, mostly viruses and single called organisms such as bacteria, yeasts and protozoa ?

A. Microbiology
B. Micrology
C. Histopathology
D. Tavelogy

Name the animal which can live without water in its entire life?

A. Desert lizard
B. Camel
C. Kangaroo rat
D. Cuttlefish

NASA scientists have recently detected water vapor on which Jupiter’s moon?

A. Callisto
B. Europa
C. lo
D. None

Isotopes of an element have the same number of …….?

A. Neutrons
B. Protons
C. Electrons
D. Beta rays

“Gastric juice” is a secretion of the glands present in……..?

A. Gall Bladder
B. Kidneys
C. Stomach
D. None of these

Hepatitis C is a leading cause of………?

B. Diabetes
C. Chronic Liver disease

Sound travels in air at an average speed of nearly…….. ?

A. 1257 miles per hour
B. 755 miles per hour
C. 330 miles per hour
D. None of these

When sound waves travel from air to water which of the following quantities remains unchanged?

A. Speed
B. Frequency
C. Intensity
D. Wavelength

Which of the following is both endocrine and exocrine gland?

A. thyroid
B. pancreas
C. parathyroid
D. all of these

All of the following organs in the human body are located both on the right and the left sides, except;………?

A. Lungs
B. Kidneys
C. Spleen
D. Eyes

The main cause of floods in the river is……….?

A. Heavy snowfall
B. Earthquakes
C. Deforestation
D. Construction of dams

Hyetology is the study of……….?

A. High pressure
B. Rainfall
C. High temperature
D. Earthquake

Birth control pills contain synthetic……..?

A. Sugars
B. Hormones
C. Vitamins
D. Minerals

Cover of the capsule is made of……….?

A. Paper
B. Polythene
C. Eggshell
D. Gelatin 

What part of the brain controls thirst and hunger?

A. Thalamus
B. Hypothalamus
C. Aymgdala
D. None

Which of the following invention is oldest ?

A. Clock
B. Microscope
C. Barometer
D. Cycle

Which instrument is used to measure the power of electric circuit ?

A. Wavemeter
B. Viscometer
C. Wattmeter
D. None of these

Which waves are used in sonography?

A. Ultrasonic waves
B. Electromagnetic Waves
C. Fundamentals of waves
D. Transverse wave

Substance whose atoms can be split are known as ………. materials.

A. Fusionable
B. Fissionable
C. Combustible
D. None of these

“Green House Effect” means:…………?

A. Pollution
B. Prevention of ultraviolet rays
C. Trapping of Solar energy due to atmospheric carbon dioxide
D. D. None

Tropism mostly refers to as…….?

A. Bird migration
B. Directional growth of a plant
C. Longevity of animal species
D. Behavioral pattern of human

A seed can germinate in the absence of……….?

A. Oxygen
B. Light
C. Moisture
D. Temperature

Diamond is harder than Graphite because of………..?

A. Difference in crystalline Structure
B. Tetrahedral structure of diamond
C. Difference in layer of atoms
D. None of these

Which of these is a micronutrient of plants?

A. Oxygen
B. Nitrogen
C. Boron
D. Carbon

Which planet is called “red planet”?

A. Mars
B. Venus
C. Jupiter
D. Saturn

An example of rhizome is………?

A. Carrot
B. Tomato
C. Ginger
D. Garlic

Which metal is pure conductor of electricity?

A. Copper
B. Gold
C. Silver
D. lead

A colloidal system in which a liquid is dispersed into a liquid is called………?

A. Percipitate
B. Gel
C. Emulsion
D. Sol

Which of the following organisms releases molecular oxygen into water?

A. E.coli
B. Phytoplankton
C. Amoeba
D. Salmonella

The process of converting wet waste to manure is………..?

A. Metabolism
B. Conservation
C. Incineration
D. Composting

Which of the following pollutants in water causes “Minamata disease?

A. Methyl Mercury
B. Lead
C. Salmonella
D. Perchlorate

lightest metal is……….?

A. Lithium
B. Sodium
C. Magnesium
D. Aluminium

Which of the following is used in water purification?

A. Reverse Osmosis
B. Osmosis
C. Cytolysis
D. Turgor Pressure

A crescograph is a device for measuring the growth in ……….?

A. Micro Organism
B. Plants
C. Human
D. Pollution

……….. is a strong smelling agent added to LPG cylinders to detect leakage?

A. Nitrogen Peroxide
B. Ethyl Mercaptan
C. Carbon Monoxide
D. Sulphur Dioxide

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