Science Quiz- Synthetic Fibres and Plastics

Fibres and plastics

Quiz

 

1. Pick the synthetic fibre out of the following?
   1.   Cotton
   2.   Jute
   3.   Nylon
   4.   Wool
2. Which of the following is a source of rayon?
   1.   Wool
   2.   Wood pulp
   3.   PET
   4.   Silk
3. Polycot is obtained by mixing
   1.   nylon and wool
   2.   nylon and cotton
   3.   polyester and wool
   4.   polyester and cotton
4. Which is a thermosetting plastic?
   1.   Melamine
   2.   PVC
   3.   Polythene
   4.   Nylon
5. The material similar to silk in appearance is
   1.   Nylon
   2.   Rayon
   3.   Polyester
   4.   Terylene
6. The most suitable material for the preparation of handles of cooking utensils is
   1.   Polythene
   2.   Nylon
   3.   PVC
   4.   Bakelite
7. Which of the following is not a common property of plastics?
   1.   Non-reactive
   2.   Durable
   3.   Light in weight
   4.   Good conductor of electricity
8. Fibre is -
   
   1.   Bakelite
   2.   Nylon
   3.   PVC
   4.   Melamine
9. Thermoplastic is/are
   1.   Bakelite
   2.   Melamine
   3.   PVC
   4.   Both (A) and (B)
10. Which of the following groups contain all synthetic substances?
    1.   Nylon, Terylene, Wool
    2.   Cotton, Polycot, Rayon
    3.   PVC, Polythene, Bakelite
    4.   Acrylic, Silk, Wool
11. The material which is commonly used for making kitchen containers is
    1.   PVC
    2.   Teflon
    3.   Acrylic
    4.   PET
12. Which is a natural fibre?
    
    1.   Nylon
    2.   polyester
    3.   Rayon
    4.   Wool
13. Name a natural polymer used in the production of synthetic polymer rayon,
    
    1.   glucose
    2.   sucrose
    3.   glycol
    4.   cellulose
14. A kind of thermosetting plastic is used in making floor tiles
    1.   Bakelite
    2.   Melamine
    3.   Polythene
    4.   PVC
15. The expanded form of PVC is
    1.   Poly Vinyl Chloride
    2.   Poly Vinyl Carbon
    3.   Poly Viscose Chloride
    4.   Poly Vinegar Chloride
16. Identify a non-biodegradable material from the following
    1.   Cotton
    2.   Thermocole
    3.   egg shell
    4.   Fruit and vegetable peels
17. Identify a non-biodegradable material from the following
    1.   Nylon only
    2.   Cellulose only
    3.   Proteins only
    4.   Nylon and Polyethene

Science Quiz- 3 important mcq for class 10

Science

Quiz

 

1. The most poisonous product formed by incomplete combustion of fossil fuels is
   1.   Carbon dioxide
   2.   Nitrogen dioxide
   3.   Carbon monoxide
   4.   Sulphur dioxide
2. Identify ‘x’, ‘y’ and ‘z’ in the following reaction:
   2KClO3(x) ---------> 2KCl(x) + O2 (z)
   This reaction take place in presence of (y).
   1.   x = gas; y = reaction condition, z = gas
   2.   x = solid; y = liquid; z = gas
   3.   x = number of moles of KClO3; y = reaction condition; z = no. of molecules of oxygen.
   4.   x = physical state of KClO3 and KCl; y = reaction condition; z = physical state of O2.
3. An element ‘X’ with atomic number 11 forms a compound with element ‘Y’ with atomic number 8. The formula of the compound formed is
   1.   XY
   2.   X2Y
   3.   XY2
   4.   X2Y3
4. A compound ‘A’ is used in the manufacture of cement. When dissolved in water, it evolves a large amount of heat and forms compound ‘B’. Identify A and B.
   1.   A= CaO,B= Ca(OH)2
   2.   A=Ca(OH)2, B=CaO
   3.   A=MgO, B= Mg(OH)2
   4.   A=Mg(OH)2, B= MgO
5. A visually challenged student, has to perform a lab test to detect the presence of acid in a given solution. The acid-base indicator preferred by him will be:
   1.   Blue litmus
   2.   Clove oil
   3.   Red cabbage extract
   4.   Hibiscus extract
6. An aqueous solution ‘A’ turns phenolphthalein solution pink. On addition of an aqueous solution ‘B’ to ‘A’, the pink colour disappears. Which of the following statement is true for solution ‘A’ and ‘B’?
   
   1.   A is strongly basic and B is a weak base.
   2.   A is strongly acidic and B is a weak acid.
   3.   A has pH greater than 7 and B has pH less than 7.
   4.   A has pH less than 7 and B has pH greater than 7.
7. In which of the following the identity of initial substance remains unchanged?
   1.   Curdling of milk
   2.   Formation of crystals by process of crystallisation
   3.   Fermentation of grapes
   4.   Digestion of food
8. Several factories were pouring their wastes in rivers A and B. Water samples were collected from these two rivers. It was observed that sample collected from river A was acidic while that of river
   B was basic. The factories located near A and B are
   1.   soaps and detergents factories near A and alcohol distillery near B
   2.   soaps and detergents factories near B and alcohol distillery near A
   3.   lead storage battery manufacturing factories near A and soaps and detergents factories
      near B
   4.   lead storage battery manufacturing factories near B and soaps and detergents factories
      near A
9. An element ‘X’ is forming an acidic oxide. Its position in Modern Periodic Table will be
   
   1.   Group 1 and Period 3 (b)
   2.   Group 2 and Period 3
   3.   Group 13 and Period 3
   4.   Group 16 and Period 3
10. Isotopes are
    1.   Atoms of an element with similar chemical properties but different atomic masses.
    2.   Atoms of different elements with similar chemical properties but different atomic masses.
    3.   Atoms of an element with different chemical properties but same atomic masses.
    4.   Atoms of different elements with different chemical properties but same atomic masses.

Science Quiz- Matters

Science Quiz-3

Quiz

 

1. Arrange solids, liquids and gases in order of increasing compressibility-
   
   1.   Gases < Liquids < Solids
   2.   Solids < Gases< Liquids
   3.   Solids < Liquids < Gases
   4.   Liquids < Gases <Solids
2. Arrange the following substances in the increasing order of intermolecular forces of attraction water, sugar and oxygen.
   1.   oxygen < water < sugar.
   2.   oxygen < water <sugar
   3.   oxygen <sugar< water
   4.   None of these
3. Which of the following are not matter ?
   1.   Book
   2.   Smell of perfumes
   3.   Thought
   4.   Bread
4. Name the state of matter that has definite mass, volume and shape-
   1.   liquid
   2.   gas
   3.   solid
   4.   Liquid and solid
5. According to ancient philosopher matter consists of-
   1.   Three costituents
   2.   Four costituents
   3.   Five costituents
   4.   Six costituents
6. Evaporation is
   1.   Conversion of liquid into vapour state at any temperature below the boiling point of the liquid
   2.   Conversion of solid into vapour state at any temperature below the boiling point of the liquid
   3.   Conversion of liquid into vapour state at the boiling point of the liquid
   4.   None of these
7. Which of the following phenomena would increase on raising the temperature?
   1.   Diffusion, evaporation, compression of gases
   2.   Evaporation, compression of gases, solubility
   3.   Evaporation, diffusion, expansion of gases
   4.   Evaporation, solubility, diffusion, compression of gases
8. Seema visited a Natural Gas Compressing unit and found that the gas can be liquefied under specific conditions of temperature and pressure. While sharing her experience with friends she got confused. Help her to identify the correct set of conditions.
   1.   Low temperature, low pressure
   2.   High temperature, low pressure
   3.   Low temperature, high pressure
   4.   High temperature, high pressure
9. During summer, water kept in an earthen pot becomes cool because of the phenomenon of
   
   1.   diffusion
   2.   transpiration
   3.   osmosis
   4.   evaporation
10. Choose the correct statement from the following:
    1.   Conversion of solid into vapour without passing through the liquid state is called vapourisation.
    2.   Conversion of vapour into solid without passing through the liquid state is called sublimation.
    3.   Conversion of vapour into solid without passing through the liquid state is called freezing.
    4.   Conversion of solid into liquid is called sublimation.
11. Which condition out of the following will increase the evaporation of water?
    1.   Less exposed surface area of water
    2.   Adding common salt to water
    3.   Increase in temperature of water
    4.   Decrease in temperature of water
12. The boiling point of water at sea level is
    1.   0°C
    2.   273 K
    3.   373 K
    4.   273°C
13. Which of the following is not correct regarding gases?
    1.   Gases exert pressure
    2.   Gases are more compressible than liquids
    3.   Gases have very weak tendency to diffuse
    4.   Gases have weak intermolecular forces of attraction
14. Which of the following statements is not correct ?
    1.   Steam produces more severe burns on the skin than the boiling water
    2.   Water at room temperature is a liquid.
    3.   Ice at 273 K causes less cooling than water at the same temperature.
    4.   We can sip hot tea from a saucer faster than from a cup.
15. Which of the following state has maximum energy or more severe ?
    1.   ice
    2.   water
    3.   steam
    4.   all have same energy
16. The body tempreture of a normal and healthy person is
    1.   397K
    2.   water
    3.   steam
    4.   all have same energy
17. Mercury is generally used in glass thermometers because-
    1.   It can be easily seen
    2.   It does not stick to glass
    3.   It remains in the liquid state over wide tempreture range
    4.   All are correct
18. Dry ice is-
    1.   water in solid state
    2.   water in gaseous state
    3.   CO2 in liquid state
    4.   CO2 in solid state
19. At what temperature, the Fahrenheit and Celsius scales have the same reading ?
    1.   – 0ºC
    2.   – 40ºC
    3.   – 10ºC
    4.   –32ºC
20. -----is/are sublimate substance
    1.   Dry ice
    2.   Naphthalin ball
    3.   Ammonium chloride
    4.   All
21. Which has high diffusions nature
    1.   liquid
    2.   solid
    3.   gas
    4.   All