Chemistry Quiz Set 09

Question No.1

The most common elements found in stones and minerals are

1. Silicon
2. Carbon
3. Hydrogen
4. Gold

Select Answer

Correct Answer: ( A )  

Question No.2

Which metal alloy is used as a component in airplanes and railways coaches?

1. Copper
2. Iron
3. Aluminium
4. None of these

Select Answer

Correct Answer: ( C )  

Question No.3

During oxyacetylene flame cutting, the metal cut due to

1. metal evaporation
2. metal burning
3. process of synchronization
4. deep oxidation

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Correct Answer: ( D )  

Question No.4

The first synthetic fiber created by man was

1. Nylon
2. Rayon
3. Terracotta
4. Polyster

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Correct Answer: ( A )  

Question No.5

Soda water is

1. Gas-liquid solution
2. Solid-liquid solution
3. Liquid-liquid solution
4. None of these

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Correct Answer: ( A )  

Question No.6

Which of the following atom has lowest volume?

1. Si
2. P
3. He
4. S

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Correct Answer: ( C )  

Question No.7

From which of the following ores iron is found?

1. Pyrite
2. Hematite
3. Halite
4. Azurite

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Correct Answer: ( B )  

Question No.8

Which of the following substances is made up by only one element?

1. Diamond
2. Sand
3. Glass
4. Water

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Correct Answer: ( A )  

Question No.9

Which of the following is a polymer?

1. Vinyl chloride
2. Urea
3. Starch
4. Styrene

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Correct Answer: ( C )  

Question No.10

A mixture of water and chalk can be separated by

1. Sedimentation
2. Evaporation
3. Distillation
4. Filtration

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Correct Answer: ( A )  

Question No.11

Resultant obtained by steam flow on the red hot coke is

1. Water gas
2. Hydrogen
3. Nitrogen
4. Carbon dioxide

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Correct Answer: ( A )  

$C$(red hot)+$ H_{2}O $(steam)→ $CO$ + $H_{2} $ 

Equimolar  mixture  of $CO$ and $ H_{2} $ is called as water gas. 

Question No.12

Which of the following cannot be divided?

1. Nucleus
2. Photon
3. Positive ion
4. Atom

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Correct Answer: ( B )  

Question No.13

The Boyle's rule applies in which of the following situation?

1. Fixed pressure
2. Fixed temperature
3. Constant pressure and temperature
4. Constant pressure but variable temperature

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Correct Answer: ( B )  

Question No.14

In which of the following compound ionic bond is formed?

1. KCl
2. H₂O
3. NH₃
4. Cl₃

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Correct Answer: ( A )  

Question No.15

What is the chemical formula of caustic soda?

1. NaOH
2. NaCl
3. NaCO₃
4. Na₂CO₃

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Correct Answer: ( A )  

Question No.16

A mixture of two evaporative liquids, whose boiling points differ, is separated by

1. Filtration
2. Sedimentation
3. Chomatographically
4. Distillation

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Correct Answer: ( D )  

Question No.17

The ingredient gases of air are generally

1. Nitrogen and oxygen
2. Nitrogen only
3. Only oxygen
4. Carbon monoxide only

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Correct Answer: ( A )  

Question No.18

Aqua regia is a mixture of

1. HCl & H₂SO₄
2. H₂SO₄ & HNO₃
3. H₂SO₄ & HNO₃ & HCl
4. None of these

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Correct Answer: ( D )  

Question No.19

Whose name is associated with the modern periodic table?

1. Newland
2. Hund
3. Mendeleev
4. Moseley

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Correct Answer: ( D )  

Question No.20

Which of the following elements acts chemically in the same way as both metals and non metals?

1. Argon
2. Lead
3. Chromium
4. Boron

Select Answer

Correct Answer: ( D )  

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