(Set 1) Matter and Its State

Q1. 
Who is known as the father of modern chemistry?
  1. Ernest Rutherford
  2. Otto Hohn
  3. Mendeleev's
  4. Antoine Levoisier

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Correct Answer : D

Q2. 
The maximum number of states to be found in matter are
  1. three
  2. four
  3. five
  4. variable

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Correct Answer : C

Q3. 
Boss-Einstein condensate is a
  1. solid state of matter
  2. fifth state of matter
  3. plasma
  4. state of condensed matter

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Correct Answer : B

Q4. 
Which one of the following statement is incorrect?
  1. The measurable unit of pressure is denoted in metre.
  2. Matter is made up of small particles.
  3. Evaporation cause cooling.
  4. Brass is a mixture of 30% zinc and 70% copper.

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Correct Answer : A

Q5. 
Which of the following is not the property of mixture in the context of science?
  1. It structure is constant.
  2. It is formed by two or more elements or compounds
  3. It can be separated by the physical processes.
  4. The components of mixture maintain their properties.

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Correct Answer : B

Q6. 
.............. are homogeneous mixtures of two or more components.
  1. Amalgams
  2. Solutions
  3. Enzymes
  4. Emulsions

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Correct Answer : B

Q7. 
Which one of the following gemstones contains beryllium metal?
  1. Topez
  2. Emerald
  3. Ruby
  4. Blue sapphire

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Correct Answer : B

Q8. 
Which one of the following is called dry ice?
  1. Solid carbon dioxide
  2. Liquid carbon dioxide
  3. Liquid nitrogen
  4. Liquid ammonia

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Correct Answer : A

Q9. 
Quartz is extensively used as a piezo-electric material. It contains
  1. Hg
  2. Si
  3. Ti
  4. Sn

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Correct Answer : B

Q10. 
A molecule of a substances is similar to its atom for
  1. diatomic molecule
  2. polyatomic molecule
  3. Monoatomic molecule
  4. triatomic molecule

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Correct Answer : C

Q11. 
Which one among the following statements about an atom is not correct?
  1. Atoms are always combine to form molecule.
  2. Atoms are the basic units from which molecules and ions are formed.
  3. Atoms are always neutral in nature.
  4. Atoms aggregate in large numbers to form the matter that we can see, feel and touch.

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Correct Answer : A

Q12. 
Glass is
  1. supercooled liquid
  2. crystalline
  3. liquid crystal
  4. None of the above

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Correct Answer : A

Q13. 
Which of the following is used to remove the green colour from glass?
  1. silicon dioxide
  2. Titanium dioxide
  3. Sulphur dioxide
  4. Manganese dioxide

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Correct Answer : D

Q14. 
The temperature of a place on one sunny day is 133 in Fahrenheit scale. The kelvin scale reading of this temperature will be
  1. 318 K
  2. 45 K
  3. 62.8 K
  4. 335.8 K

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Correct Answer : A

Q15. 
Water boils at a lower temperature at high altitudes, because
  1. the air pressure is less
  2. outside temperature is less
  3. latent heat is less
  4. None of the above

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Correct Answer : A

Q16. 
Which of the following has the lowest melting point ?
  1. Lead
  2. Zinc
  3. Silver
  4. Tin

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Correct Answer : D

Q17. 
Which one of the following could be the melting point of iron ?
  1. 25 degree C
  2. 37 degree C
  3. 500 degree C
  4. 1500 degree C

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Correct Answer : D

Q18. 
Name the law in Physics which states that equal volume of all gases under the same conditions of temperature and pressure contains equal numbers of molecules.
  1. Avogadro's Law
  2. Boyles's Law
  3. Ohm's Law
  4. Charles' Law

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Correct Answer : A

Q19. 
Lowering the atmospheric pressure on a liquid
  1. increase the boiling point of the liquid .
  2. lowers the boiling point of the liquid.
  3. does not affect the boiling point of the liquid.
  4. increases the time required for it to boil.

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Correct Answer : B

Q20. 
For an ideal gas, which one of the following statements is not true?
  1. The speed of all gas molecules is same.
  2. The kinetic energies of all gas molecules are not same.
  3. The potential energy of the gas molecules is zero.
  4. There is on interactive force between the molecules.

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Correct Answer : A

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