General Knowledge(GK) MCQS-General Science-Elements and Metals General knowledge(GK) MCQS | Online Exam Test (Learn MCQs: multiple choice questions and answers)

Question:

Air is a/an

1.compound

2.element

3.electrolyte

4.mixture

Question:

Among the various allotropes of carbon,

1.coke is the hardest, graphite is the softest

2.diamond is the hardest, coke is the softest

3.diamond is the hardest, graphite is the softest

4. diamond is the hardest, lamp black is the softest

Question:

Balloons are filled with

1.nitrogen

2.helium

3.oxygen

4.argon

Question:

Bell metal is an alloy of

1. nickel and copper

2.zinc and copper

3.brass and nickel

4.tin and copper

Question:

From which mineral is radium obtained?

1.Rutile

2.Haematite

3.Limestone

4.Pitchblende

Question:

Heavy water is

1.deuterium oxide

2.ph7

3.rain water

4.tritium oxide

Question:

In fireworks, the green flame is produced because of

1.sodium

2.barium

3.mercury

4.potassium

Question:

In which of the following activities silicon carbide is used?

1.Making cement and glass

2.Disinfecting water of ponds

3.cutting very hard substances

4.Making casts for statues

Question:

Marsh gas is

1.nitrogen

2.ethane

3.methane

4.hydrogen

Question:

Potassium Permanganate is used for purifying drinking water, because

1.it is a sterilising agent

2. it dissolves the impurities of water

3.it is a reducing agent

4. it is an oxidising agent

Question:

Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products?

1.Television

2.Refrigerator

3.Tube light

4.Cooking gas

Question:

Tetraethyl lead is used as

1.pain killer

2.fire extinguisher

3.mosquito repellent

4.petrol additive

Question:

The hardest substance available on earth is

1.Gold

2.Iron

3.Diamond

4.Platinum

Question:

The variety of coal in which the deposit contains recognisable traces of the original plant material is

1.bitumen

2.anthracite

3.lignite

4.peat

Question:

Carbon, diamond and graphite are together called

1.allotropes

2.isomers

3.isomorphs

4.isotopes

Question:

Non stick cooking utensils are coated with

1.Teflon

2.PVC

3.black paint

4.polystyrene

Question:

Permanent hardness of water may be removed by the addition of

1. sodium carbonate

2.alum

3.potassium permanganate

4.lime

Question:

Sodium metal is kept under

1.petrol

2.alcohol

3.water

4.kerosene

Question:

The gases used in different types of welding would include

1.oxygen and hydrogen

2.oxygen, hydrogen, acetylene and nitrogen

3.oxygen, acetylene and argon

4.oxygen and acetylene

Question:

The main constituents of pearls are

1.calcium oxide and ammonium chloride

2.calcium carbonate and magnesium carbonate

3.aragonite and conchiolin

4.ammonium sulphate and sodium carbonate

Question:

Which of the following is not an isotope of hydrogen?

1.Tritium

2.Deuterium

3.Protium

4.Yttrium

Question:

Actinides are the elements with atomic numbers from

1.97 to 104

2.101 to 115

3.89 to 103

4.36 from 43

Question:

Amalgams are

1.highly coloured alloys

2.alloys which contain mercury as one of the contents

3.alloys which have great resistance to abrasion

4.alloys which contain carbon

Question:

Bromine is a

1. black solid

2. red liquid

3.colourless gas

4.highly inflammable gas

Question:

Chemical formula for water is

1.NaAlO2

2.H2O

3.Al2O3

4.CaSiO3

Question:

Chlorophyll is a naturally occurring chelate compound in which central metal is

1.copper

2.magnesium

3.iron

4.calcium

Question:

Galvanised iron sheets have a coating of

1.lead

2.chromium

3.zinc

4.tin

Question:

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

1.Oxygen

2.Hydrogen sulphide

3.Carbon dioxide

4.Nitrogen

Question:

LPG consists of mainly

1.methane, ethane and hexane

2.ethane, hexane and nonane

3.methane, hexane and nonane

4.methane, butane and propane

Question:

Monazite is an ore of

1.titanium

2.zirconium

3.iron

4.thorium

Question:

Most soluble in water is

1.camphor

2.sulphur

3.common salt

4.sugar

Question:

Permanent hardness of water can be removed by adding

1.chlorine

2.washing soda

3.potassium permanganate

4.bleaching powder

Question:

Potassium nitrate is used in

1.medicine

2.fertiliser

3.salt

4.glass

Question:

Quartz crystals normally used in quartz clocks etc. is chemically

1.silicon dioxide

2.germanium oxide

3.a mixture of germanium oxide and silicon dioxide

4.sodium silicate

Question:

Soda water contains

1.carbonic acid

2. sulphuric acid

3.carbon dioxide

4.nitrous acid

Question:

The average salinity of sea water is

1.3%

2.4%

3.3%

4.2%

Question:

The chemical (ethyl mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of

1.bromine

2.fluorine

3.chlorine

4.sulphur

Question:

The element common to all acids is

1.hydrogen

2.carbon

3.sulphur

4.oxygen

Question:

The filament of an electric bulb is made of

1.tungsten

2.nichrome

3.graphite

4.iron

Question:

The gas usually filled in the electric bulb is

1.nitrogen

2.hydrogen

3.carbon dioxide

4.oxygen

Question:

The group of metals Fe, Co, Ni may best called as

1.transition metals

2.main group metals

3.alkali metals

4.rare metals

Question:

The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is

1.Argon

2.Xenon

3.Helium

4.Krypton

Question:

The most important ore of aluminium is

1.galena

2.calamine

3.calcite

4.bauxite

Question:

The property of a substance to absorb moisture from the air on exposure is called

1.osmosis

2.deliquescence

3.efflorescence

4.desiccation

Question:

The two elements that are frequently used for making transistors are

1.boron and aluminium

2.silicon and germanium

3.iridium and tungsten

4.niobium and columbium

Question:

Washing soda is the common name for

1. Sodium carbonate

2.Calcium bicarbonate

3.Sodium bicarbonate

4.Calcium carbonate

Question:

Water is a good solvent of ionic salts because

1. it has a high specific heat

2.it has no colour

3.it has a high dipole moment

4.it has a high boiling point

Question:

What is laughing gas?

1.Nitrous Oxide

2.Carbon monoxide

3.Sulphur dioxide

4.Hydrogen peroxide

Question:

When an iron nail gets rusted, iron oxide is formed

1.without any change in the weight of the nail

2. with decrease in the weight of the nail

3. with increase in the weight of the nail

4.without any change in colour or weight of the nail

Question:

Which metal pollute the air of a big city?

1.Copper

2.Chromium

3.Lead

4.Cadmium

Question:

Which of the following are the ingredients of gun metal?

1. Iron, Zinc, Titanium

2. Iron, tin

3. Iron, Brass, Tin

4.Copper, Tin

Question:

Which of the following does not contain a coinage metal?

1.Silver and Gold

2.Zinc and Gold

3. Copper and Silver

4.Copper and Gold

Question:

Which of the following is a non metal that remains liquid at room temperature?

1.Phosphorous

2.Bromine

3.Chlorine

4.Helium

Question:

Which of the following is an element?

1.Ruby

2.Sapphire

3.Emerald

4.Diamond

Question:

Which of the following is in liquid form at room temperature?

1.Lithium

2.Sodium

3.Francium

4.Cerium

Question:

Which of the following is the lightest metal?

1.Mercury

2.Lithium

3.Lead

4.Silver

Question:

Which of the following is used as a lubricant?

1.Graphite

2.Silica

3.Iron Oxide

4.Diamond

Question:

Which of the following is used in pencils?

1.Graphite

2.Silicon

3.Charcoal

4.Phosphorous

Question:

Which of the following metals forms an amalgam with other metals?

1.Tin

2.Mercury

3.Lead

4.Zinc

Question:

Which of the following metals remain in liquid for under normal conditions?

1.Radium

2.Zinc

3.Uranium

4.Mercury

Question:

Which of the following was to be discovered first in the chromospheres of the sun?

1.Krypton

2.Xenon

3.Neon

4.Helium

Question:

Which of the gas is not known as green house gas?

1.Methane

2.Nitrous oxide

3.Carbon dioxide

4.Hydrogen

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MCQs | General knowledge(GK)/General Knowledge(GK) MCQS-General Science-Elements and Metals Sample Test,Sample questions

Question: Air is a/an

Question: Among the various allotropes of carbon,

Question: Balloons are filled with

Question: Bell metal is an alloy of

Question: From which mineral is radium obtained?

Question: Heavy water is

Question: In fireworks, the green flame is produced because of

Question: In which of the following activities silicon carbide is used?

Question: Marsh gas is

Question: Potassium Permanganate is used for purifying drinking water, because

Question: Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products?

Question: Tetraethyl lead is used as

Question: The hardest substance available on earth is

Question: The variety of coal in which the deposit contains recognisable traces of the original plant material is

Question: Carbon, diamond and graphite are together called

Question: Non stick cooking utensils are coated with

Question: Permanent hardness of water may be removed by the addition of

Question: Sodium metal is kept under

Question: The gases used in different types of welding would include

Question: The main constituents of pearls are

Question: Which of the following is not an isotope of hydrogen?

Question: Actinides are the elements with atomic numbers from

Question: Amalgams are

Question: Bromine is a

Question: Chemical formula for water is

Question: Chlorophyll is a naturally occurring chelate compound in which central metal is

Question: Galvanised iron sheets have a coating of

Question: ﻿Brass gets discoloured in air because of the presence of which of the following gases in air?

Question: LPG consists of mainly

Question: Monazite is an ore of

Question: Most soluble in water is

Question: Permanent hardness of water can be removed by adding

Question: Potassium nitrate is used in

Question: Quartz crystals normally used in quartz clocks etc. is chemically

Question: Soda water contains

Question: The average salinity of sea water is

Question: The chemical (ethyl mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of

Question: The element common to all acids is

Question: The filament of an electric bulb is made of

Question: The gas usually filled in the electric bulb is

Question: The group of metals Fe, Co, Ni may best called as

Question: The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is

Question: The most important ore of aluminium is

Question: The property of a substance to absorb moisture from the air on exposure is called

Question: The two elements that are frequently used for making transistors are

Question: Washing soda is the common name for

Question: Water is a good solvent of ionic salts because

Question: What is laughing gas?

Question: When an iron nail gets rusted, iron oxide is formed

Question: Which metal pollute the air of a big city?

Question: Which of the following are the ingredients of gun metal?

Question: Which of the following does not contain a coinage metal?

Question: Which of the following is a non metal that remains liquid at room temperature?

Question: Which of the following is an element?

Question: Which of the following is in liquid form at room temperature?

Question: Which of the following is the lightest metal?

Question: Which of the following is used as a lubricant?

Question: Which of the following is used in pencils?

Question: Which of the following metals forms an amalgam with other metals?

Question: Which of the following metals remain in liquid for under normal conditions?

Question: Which of the following was to be discovered first in the chromospheres of the sun?

Question: Which of the gas is not known as green house gas?

More MCQS

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Question:
Air is a/an

Question:
Among the various allotropes of carbon,

Question:
Balloons are filled with

Question:
Bell metal is an alloy of

Question:
From which mineral is radium obtained?

Question:
Heavy water is

Question:
In fireworks, the green flame is produced because of

Question:
In which of the following activities silicon carbide is used?

Question:
Marsh gas is

Question:
Potassium Permanganate is used for purifying drinking water, because

Question:
Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products?

Question:
Tetraethyl lead is used as

Question:
The hardest substance available on earth is

Question:
The variety of coal in which the deposit contains recognisable traces of the original plant material is

Question:
Carbon, diamond and graphite are together called

Question:
Non stick cooking utensils are coated with

Question:
Permanent hardness of water may be removed by the addition of

Question:
Sodium metal is kept under

Question:
The gases used in different types of welding would include

Question:
The main constituents of pearls are

Question:
Which of the following is not an isotope of hydrogen?

Question:
Actinides are the elements with atomic numbers from

Question:
Amalgams are

Question:
Bromine is a

Question:
Chemical formula for water is

Question:
Chlorophyll is a naturally occurring chelate compound in which central metal is

Question:
Galvanised iron sheets have a coating of

Question:
Brass gets discoloured in air because of the presence of which of the following gases in air?

Question:
LPG consists of mainly

Question:
Monazite is an ore of

Question:
Most soluble in water is

Question:
Permanent hardness of water can be removed by adding

Question:
Potassium nitrate is used in

Question:
Quartz crystals normally used in quartz clocks etc. is chemically

Question:
Soda water contains

Question:
The average salinity of sea water is

Question:
The chemical (ethyl mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of

Question:
The element common to all acids is

Question:
The filament of an electric bulb is made of

Question:
The gas usually filled in the electric bulb is

Question:
The group of metals Fe, Co, Ni may best called as

Question:
The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is

Question:
The most important ore of aluminium is

Question:
The property of a substance to absorb moisture from the air on exposure is called

Question:
The two elements that are frequently used for making transistors are

Question:
Washing soda is the common name for

Question:
Water is a good solvent of ionic salts because

Question:
What is laughing gas?

Question:
When an iron nail gets rusted, iron oxide is formed

Question:
Which metal pollute the air of a big city?

Question:
Which of the following are the ingredients of gun metal?

Question:
Which of the following does not contain a coinage metal?

Question:
Which of the following is a non metal that remains liquid at room temperature?

Question:
Which of the following is an element?

Question:
Which of the following is in liquid form at room temperature?

Question:
Which of the following is the lightest metal?

Question:
Which of the following is used as a lubricant?

Question:
Which of the following is used in pencils?

Question:
Which of the following metals forms an amalgam with other metals?

Question:
Which of the following metals remain in liquid for under normal conditions?

Question:
Which of the following was to be discovered first in the chromospheres of the sun?

Question:
Which of the gas is not known as green house gas?