CHEMISTRY QUIZ SET 02

SET 02

SET 02

GENERAL KNOWLEDGE
CHEMISTRY QUESTIONS

• Total Questions : 50
• Total Marks : 100
• Mark Deduction : 0.5

Question No.1

Alloys made with mercury as one metal are known as_________

1. A Mixtures
2. B Emulsions
3. C Solders
4. D Amalgams

Correct Answer :  D

Select Answer

Question No.2

Which of the following is Calcium Sulphate?

1. A Epsom salt
2. B Blue vitriol
3. C Gypsum salt
4. D Potash alum

Correct Answer :  C

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Question No.3

Human bone does not contain______

1. A Calcium
2. B Carbon
3. C Oxygen
4. D Phosphorous

Correct Answer :  B

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Question No.4

Who proposed first atomic theory?

1. A John Dalton
2. B Chadwick
3. C Bohr
4. D Rutherford

Correct Answer :  A

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Question No.5

Which have the maximum density?

1. A Water
2. B Benzene
3. C Ice
4. D Chloroform

Correct Answer :  A

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Question No.6

Which of the following gas is readily soluble in water at room temperature?

1. A Chlorine
2. B Nitrogen
3. C Ammonia
4. D Carbon dioxide

Correct Answer :  D

CO₂ + H₂O → Carbonic Acid (H₂CO₃)

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Question No.7

Which metal is called future metal?

1. A Titanium
2. B Nichrome
3. C Aluminium
4. D Copper

Correct Answer :  A

Titanium

Atomic number : 22.
Atomic mass : 47.8
Electronic configuration [Ar]3d²4s²

Electrons per shell
K	L	M	N
2	8	10	2

It is a lustrous transition metal (d-block element).
Titanium is resistant to corrosion in sea water, aqua regia, and chlorine.

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Question No.8

Which metal is known as noble metal.

1. A Iron
2. B Uranium
3. C Gold
4. D Sodium

Correct Answer :  C

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Question No.9

Which of the following has the maximum number of isotopes?

1. A Bromine
2. B Aluminium
3. C Polonium
4. D Carbon

Correct Answer :  C

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Question No.10

How many different oxides are formed by nitrogen?

1. A One
2. B Two
3. C Three
4. D Five

Correct Answer :  D

  Nitrogen forms 5 types of oxides:

     Nitric oxide or Nitrogen monoxide (NO)

     Nitrogen dioxide (NO₂)

     Nitrous oxide or Laughing gas (N₂O)

     Nitrogen trioxide (NO₃)

     Nitrogen pentoxide (N₂O₅)

  NO, NO₂ , N₂O are present in the atmosphere in significant amounts. Nitrogen oxides are produced naturally by lightning, and also, to a small extent, by microbial processes in soils.

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Question No.11

The element present in the largest amount in rocks and minerals is

1. A Carbon
2. B Silicon
3. C Hydrogen
4. D Aluminium

Correct Answer :  B

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Question No.12

The most important ore of aluminium is______________

1. A Galena
2. B Calamine
3. C Bauxite
4. D Calcite

Correct Answer :  C

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Question No.13

Which of the following is not an allotropic form of carbon?

1. A Diamond
2. B Calcite
3. C Graphite
4. D Charcoal

Correct Answer :  B

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Question No.14

An alloy used in making heating elements for electric heating devices is________

1. A Duralumin
2. B Nichrome
3. C Pewter
4. D Steel

Correct Answer :  B

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Question No.15

The Element common to all acids is_______

1. A Carbon
2. B hydrogen
3. C oxygen
4. D sulphur

Correct Answer :  B

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Question No.16

The most abundant metal in the earth’s crust is

1. A Silica
2. B Manganese
3. C Magnesium
4. D Aluminium

Correct Answer :  D

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Question No.17

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

1. A Phosphorus
2. B Fluorine
3. C Sulphur
4. D None of these

Correct Answer :  C

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Question No.18

Which of the following element is responsible for the pungent smell of Garlic?

1. A Sulphur
2. B Phosphorous
3. C Bromine
4. D Arsenic

Correct Answer :  A

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Question No.19

The light emitted by firefly is due to burning of______

1. A Phosphorous
2. B Neon
3. C Argon
4. D Iodine

Correct Answer :  A

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Question No.20

Which of the following is the softest metal?

1. A Sodium
2. B Aluminium
3. C Lead
4. D Gold

Correct Answer :  A

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Question No.21

Which one among the following is the chief compound used in pepper spray, a riot-control agent?

1. A Capsaicin
2. B Black pepper
3. C Sulphur dioxide
4. D Hydrogen sulphide

Correct Answer :  A

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Question No.22

Which one of the following pairs of metals is present in the cytochrome-c and chlorophyll respectively?

1. A Mg and Mn
2. B Cu and Mg
3. C Fe and Mg
4. D Fe and Cu

Correct Answer :  C

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Question No.23

Which one among the following chemicals can be used to clean the surface of gold ornaments?

1. A Aqua regia
2. B Nitric acid
3. C Selenic acid
4. D HCl

Correct Answer :  B

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Question No.24

Commercially vulcanisation of rubber involves ______

1. A Sulphur
2. B Carbon
3. C Phosphorous
4. D Potassium

Correct Answer :  A

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Question No.25

Which one of the following is used in the preparation of the antiseptic solution?

1. A Potassium nitrate
2. B iodine
3. C Iodine chloride
4. D Potassium chloride

Correct Answer :  B

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Question No.26

Atoms having same Atomic numbers but different Mass numbers are called___

1. A Isotopes
2. B Isobars
3. C Isotone
4. D Isochore

Correct Answer :  Correct Answer: (A)

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Question No.27

Which one of the following compounds was responsible for the epidemic form of the disease called “Minamata Disease”?

1. A Chromium
2. B Manganese
3. C Lead
4. D Mercury

Correct Answer :  D

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Question No.28

Which gas is used to artificially ripen the fruits?

1. A Ethane
2. B Ethylene
3. C Propane
4. D Acetylene

Correct Answer :  B

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Question No.29

“All the four quantum numbers of two electrons in an atom are not the same.” It is the law of

1. A Hund’s Rule
2. B Pauli’s exclusion Principle
3. C Heisenberg uncertainty Principle
4. D Avogadro’s law

Correct Answer :  B

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Question No.30

The element used for making solar cells is_________

1. A Magnesium
2. B Sodium
3. C Chromium
4. D Silicon

Correct Answer :  D

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Question No.31

Which of the following is iron ore ?

1. A Bauxite
2. B Magnetite
3. C Lignite
4. D Nitrite

Correct Answer :  B

Magnetite (Fe₃O₄)

Note : Hematite (Fe₂O₃).

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Question No.32

Which of the following is called Philosopher’s wool?

1. A Zinc carbonate
2. B Zinc sulphide
3. C Zinc oxide
4. D Zinc blende (ZnS)

Correct Answer :  C

Zinc oxide (ZnO)

 The compound zinc oxide (ZnO) is called philosopher's wool. Alchemists, as part of their rituals, would burn zinc in air and collect the residue, which formed into white woolly tufts.They called it lana philosophica in Latin, meaning philosopher's wool. 

 Zinc oxide has many uses: as white pigment in paints, component in zinc ointment for treating skin diseases, material in sun screens and sun lotions, in rubber manufacture and in photocopying products.

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Question No.33

Bhopal gas tragedy of 1984 is related to

1. A Aluminium phosphide
2. B Methyl bromide
3. C Methyl isocyanide
4. D Carbon dioxide

Correct Answer :  C

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Question No.34

The antiseptic compound present in Dettol is ____

1. A Iodine
2. B Chloroxylenol
3. C Biothional
4. D Cresol

Correct Answer :  B

Chloroxylenol

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Question No.35

The most electronegative element among the following is

1. A Fluorine
2. B Sodium
3. C oxygen
4. D Chlorine

Correct Answer :  A

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Question No.36

Non metal found is the liquid state is ______

1. A Nitrogen
2. B Fluorine
3. C Bromine
4. D Chlorine

Correct Answer :  C

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Question No.37

Brass is an alloy of_____________

1. A Cu, Al, Zn
2. B Cu, Sn
3. C Cu, Zn
4. D Al, Mg

Correct Answer :  C

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Question No.38

Bronze is an alloy of ______

1. A Cu, Zn
2. B Cu, Sn
3. C Cu, Al
4. D Sn, Zn

Correct Answer :  B

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Question No.39

How many neutrons are there in ₉₂U²³⁸ atom?

1. A 92
2. B 238
3. C 146
4. D 330

Correct Answer :  C

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Question No.40

White phosphorous is generally kept under __________

1. A Alcohol
2. B Water
3. C Glycerine
4. D Kerosene oil

Correct Answer :  B

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Question No.41

Which of the following is used as Moderator in Nuclear Reactor?

1. A Uranium
2. B Ordinary water
3. C Radium
4. D Graphite

Correct Answer :  D

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Question No.42

The chemical name of “Plaster of Paris” commonly used for setting broken bones is ___

1. A Calcium nitrate
2. B Calcium sulphate
3. C Calcium carbonate
4. D Calcium chloride

Correct Answer :  B

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Question No.43

The chemical name of Soda ash is ____

1. A Sodium carbonate
2. B Sodium bicarbonate
3. C Sodium chloride
4. D Sodium nitrate

Correct Answer :  A

Sodium Carbonate $Na_2CO_3 $

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Question No.44

Hydrochloric acid is also known as ________

1. A Galic acid
2. B Picric acid
3. C Muriatic acid
4. D Chloric acid

Correct Answer :  C

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Question No.45

Who developed the model of atomic structure?

1. A Alfred Nobel
2. B Faraday
3. C Volta
4. D Rutherford

Correct Answer :  D

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Question No.46

The hottest part of the gas flame is known as_____

1. A Blue Zone
2. B Non-luminous zone
3. C Luminous zone
4. D Dark zone

Correct Answer :  A

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Question No.47

In galvanization , iron is coated with__________

1. A Copper
2. B Tin
3. C Zinc
4. D Nickel

Correct Answer :  C

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Question No.48

Table sugar is which type of sugar?

1. A Fructose
2. B Galactose
3. C Glucose
4. D Sucrose

Correct Answer :  D

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Question No.49

What is the process of conversion from solid to gas is known as_______

1. A Evaporation
2. B Solidification
3. C Sublimation
4. D Condensation

Correct Answer :  C

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Question No.50

Which of the following is known as brown coal?

1. A Peat
2. B Lignite
3. C Bituminous
4. D Anthracite

Correct Answer :  B

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