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What is the correct answer?

4

When a gas is turned into a liquid, the process is called

A. evaporation

B. condensation

C. sublimation

D. deposition

Correct Answer :

B. condensation


Related Questions

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Liquefied Petroleum gas (LPG) consists of mainly

A. Methane, Butane and Propane

B. Methane, Ethane and Hexane

C. Ethane, Hexane and Nonane

D. Methane, Hexane and Nonane

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The intencity of Earthquakes is measured on

A. Beaufort scale

B. Secant scale

C. Mercalli scale

D. Richter scale

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The metallic constituents of hard water are

A. Calcium, magnesium and iron

B. Magnesium, Calcium and tin

C. Magnesium, tin and iron

D. Iron, tin and calcium

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4

Which of the following elements is a metal

A. S

B. Ga

C. Se

D. I

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Old-written material, which cannot be read easily can be read by

A. None of these

B. Ultraviolet rays

C. Infra Red rays

D. Cosmic Rays

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According to Daltons atomic theory the smallest particle which can exist independently is

A. An atom

B. A cation

C. A molecule

D. An anion

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The Panda belongs to the same family as that of

A. Cat

B. Bear

C. Rabbit

D. Dog

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In an atomic nucleus, neutrons and protons are held together by

A. Magnetic forces

B. Gravitational forces

C. Coulombic forces

D. Exchange forces

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4

The metal used in storage batteries

A. Zinc

B. Iron

C. Copper

D. Lead

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Lightening cause rainfall because

A. It activate H2O molecule

B. Photo-electricity reaction starts

C. Some of the gas molecules become bigger

D. It cause combination of oxygen and nitrogen

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4

Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?

A. A piece of iron that is not a permanent magnet

B. The north pole of another permanent magnet

C. A positively charged glass rod

D. A negatively charged rubber rod

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4

Quartz crystals normally used in quartz clocks etc. is chemically

A. A mixture of B and C

B. Silicon dioxide

C. Germenium dioxide

D. Sodium Silicate

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4

One fathom is equal to

A. 6 feet

B. 6 metres

C. 60 cms

D. 60 feet

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4

Earth's seasons are caused by which of the following?

A. The varying amount of sunspot activity

B. The tilt of the earth's rotation relative to the ecliptic as earth revolves around the sun

C. The earth's orbit around the sun as an exlipse rather than a circle

D. The rotation of during a 24-hour day

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Which of the following is most likely to cause a rise in the average temperature of earth's atmosphere in future?

A. Atomic warfare

B. Depletion of earth's ozone layer

C. CO2 from fossil fuels

D. Dust clouds from valcanoes

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4

Which of the following characters is not shown by hydrogen

A. It burns in air to form water

B. It supports combustion

C. It readily combines with fluorine and chlorine

D. It combines with almost all metals forming hydrides

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4

The major ingredient of leather is

A. Nucleic acid

B. Carbohydrate

C. Collagen

D. Polymer

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4

The accumulation of stress along the boundaries of lithospheric plates results in which of the following?

A. Earthquakes

B. Magnetic reversals

C. Hurricanses

D. Increased deposition of deep-sea sediments

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4

The hardest substance available on earth is

A. Platinum

B. Quartz

C. gold

D. Diamond

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Pollination by birds is called

A. autogamy

B. entomophily

C. anemophily

D. ornithophily

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Epoxy resins is used as

A. Adhesives

B. Detergents

C. Insecticides

D. Moth repellants

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4

The removal of top soil by water or wind is called

A. Soil erosion

B. Soil wash

C. Silting of soil

D. Soil creep

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4

Water has maximum density at

A. 0°C

B. -4°C

C. 100°C

D. 4°C

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4

When a gas is turned into a liquid, the process is called

A. evaporation

B. condensation

C. sublimation

D. deposition

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4

The oxide of Nitrogen used in medicine as anaesthetic is

A. Nitric oxide

B. Nitrogen dioxide

C. Nitrogen pentoxide

D. Nitrous oxide

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4

The location and energy of an electron in an atom can be specified by

A. Atomic number

B. Atomic mass

C. Quantum numbers

D. None of these

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4

Carbon tetrachloride fire extinguisher should not be used in closed room because it produces poisonous glass called

A. Carbon Monoxide

B. Phosgene

C. Phosphine

D. None of these

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4

Permanent hardness of water, due to sulphates of the metal, can be destroyed by the use of

A. Sulphonates

B. Zeolites

C. Nitrates

D. None of these

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4

Apparatus invented by Archimedes is :

A. Pulley

B. Microscope

C. Thermemoter

D. Barometer

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The most important ore of Aluminium is

A. Calamine

B. Calcite

C. Galena

D. Bauxite