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MCQOPTIONS
This section includes 2267 Mcqs, each offering curated multiple-choice questions to sharpen your 6th Class knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
From which one of the following sources, the aquatic animals breathe in oxygen in the water? |
| A. | (a) Dissolved oxygen in water |
| B. | (b) Oxygen from the atmosphere |
| C. | (c) Oxygen from the human |
| D. | (d) One animal gives out oxygen for the others |
| E. | (e) None of these |
| Answer» B. (b) Oxygen from the atmosphere | |
| 2. |
Which one of the following minerals is an essential for developing strong bones and teeth? |
| A. | Calcium and phosphorus |
| B. | Iodine and sodium |
| C. | Iron and phosphorus |
| D. | Sodium and iron |
| E. | None of these |
| Answer» B. Iodine and sodium | |
| 3. |
The tap water is considered pure and fit for drinking. Pure water is tasteless but tap water has some taste. This taste in tap water is due to |
| A. | chemical treatment through which the water has to pass before its supply through taps. |
| B. | certain gases and salts dissolved in water that is supplied as tap water. |
| C. | Both (a) and (b) |
| D. | None of these |
| Answer» B. certain gases and salts dissolved in water that is supplied as tap water. | |
| 4. |
Why is the presence of water vapours in air important? |
| A. | It is important for air to be moist. |
| B. | It is important for water cycle in nature. |
| C. | It is important as plant get their water from this source. |
| D. | None of these |
| Answer» C. It is important as plant get their water from this source. | |
| 5. |
A girl saw a water puddle while going to school. In the evening, while returning home, she observed that the puddle disappeared. This was because |
| A. | the water evaporated. |
| B. | the water seeped into the ground. |
| C. | the water condensed. |
| D. | Both (a) and (b) |
| Answer» E. | |
| 6. |
What percentage of water is readily available to us? |
| A. | 3% |
| B. | 0.97 |
| C. | 60% |
| D. | 0.4 |
| Answer» B. 0.97 | |
| 7. |
If there are no rains at a place for a long time it results in |
| A. | floods |
| B. | drought |
| C. | either floods or drought |
| D. | None of these |
| Answer» C. either floods or drought | |
| 8. |
Which type of force is experienced when a south pole of a magnet is brought near the south pole of another magnet? |
| A. | (a) Force of attraction |
| B. | (b) Force of repulsion |
| C. | (c) No force is experienced |
| D. | (d) Both A and B |
| E. | (e) None of these |
| Answer» C. (c) No force is experienced | |
| 9. |
Your car is running in the direction of east on a straight path at constant speed of 40 kmph. What type of speed does the speed of the car represent? |
| A. | Non uniform speed |
| B. | Uniform speed |
| C. | Variable speed |
| D. | All of these |
| E. | None of these |
| Answer» C. Variable speed | |
| 10. |
Select an incorrect reason for separating components of a mixture. |
| A. | To separate two or more different but useful components. |
| B. | To remove undesirable and useless components. |
| C. | To remove pure or harmless components. |
| D. | To obtain pure sample of a substance. |
| Answer» D. To obtain pure sample of a substance. | |
| 11. |
Match the column I with column II and select the correct option from the codes given below: Column I Column II P. A mixture having same composition and properties throughout (i) Sediment Q. A mixture, different parts of which liquid have different composition and properties (ii) Supernatant R. The solid that settles when a heterogeneous solid-liquid mixture is allowed to stand (iii) Homogeneous mixture S. The liquid above the solid settling from a heterogeneous solid-liquid mixture (iv) Heterogeneous mixture |
| A. | P-(ii), Q-(iv), R-(iii), S-(i) |
| B. | P-(i), Q-(iii), R-(ii), S-(iv) |
| C. | P-(iii), Q-(iv), R-(i), S-(ii) |
| D. | P-(iii), Q-(iv), R-(ii), S-(i) |
| Answer» D. P-(iii), Q-(iv), R-(ii), S-(i) | |
| 12. |
Which one of the following statements is true? Statement 1: Animals depend on plants for their food. Statement 2: Plants depend on animals for their food. |
| A. | Statement 1 |
| B. | Statement 2 |
| C. | Both statements are true |
| D. | Both statements are false |
| Answer» B. Statement 2 | |
| 13. |
Which of these constituents present in w air leads to the formation of fog and mist? |
| A. | Nitrogen |
| B. | Oxygen |
| C. | Water vapour |
| D. | Carbon dioxide |
| Answer» D. Carbon dioxide | |
| 14. |
Temporary hardness of water is due to the presence of |
| A. | calcium bicarbonate. |
| B. | sodium carbonate. |
| C. | potassium carbonate. |
| D. | magnesium hydride. |
| Answer» B. sodium carbonate. | |
| 15. |
Can we look through the oil spread paper towards the light bulb? |
| A. | Yes, oil spread paper becomes transparent |
| B. | No, oil spread paper is opaque |
| C. | Yes but not clearly as, oil spread paper becomes translucent |
| D. | Yes, because oil spread paper has hole in it. |
| Answer» D. Yes, because oil spread paper has hole in it. | |
| 16. |
DIRECTIONS: The questions in this segment consists of two statements one labelled as ?Assertion A? and the other labelled as ?Reason R? You are to examine these two statements carefully and decide if the assertion A and reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): The sea water is saline. Reason (R): The sea water contains many dissolved salts. |
| A. | Both A and R are true and R is the correct explanation of A. |
| B. | Both A and R are true but R is not the correct explanation of A. |
| C. | A is true but R is false. |
| D. | A is false but R is true. |
| Answer» B. Both A and R are true but R is not the correct explanation of A. | |
| 17. |
Consider the following statements: Statement 1: Pure water is tasteless. Statement 2: Pure water is colorless. Which one of the following is correct about the above statements? |
| A. | (a) Statement 1 is false and 2 is true |
| B. | (b) Statement 1 is true and 2 is false |
| C. | (c) Both statements are false |
| D. | (d) Both statements are true |
| E. | (e) None of these |
| Answer» E. (e) None of these | |
| 18. |
The most of the natural phenomena happens in which one of the following layers of the atmosphere? |
| A. | (a) Stratosphere |
| B. | (b) Exosphere |
| C. | (c) Troposphere |
| D. | (d) All of these |
| E. | (e) None of these |
| Answer» D. (d) All of these | |
| 19. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 See the following chart carefully then answer the questions that follows: What is Y in the gives flow chart? |
| A. | Sugar |
| B. | Sand |
| C. | Glass |
| D. | Oil |
| Answer» C. Glass | |
| 20. |
A student added blue ink to a beaker containing water. After a few minutes the colour of water changed to blue. Which of these properties led to this colour change? |
| A. | Miscibility |
| B. | Malleability |
| C. | Ductility |
| D. | Compressibility |
| Answer» B. Malleability | |
| 21. |
Separation of Substances List of different component is given. Identify their method of separation and choose the correct option. (i) Tea leaves from tea (ii) Butter from milk (iii) Sand from water (iv) Paneer from milk |
| A. | (i), (ii), (iii) and (iv) by filtration |
| B. | (i), (iii) and (iv) by filtration |
| C. | (ii) and (iv) by sedimentation |
| D. | (i), (iii) and (iv) by churning. |
| Answer» C. (ii) and (iv) by sedimentation | |
| 22. |
Convert 2.5 kilowatt in watts. |
| A. | 250w |
| B. | 3400w |
| C. | 2500w |
| D. | 300w |
| E. | None of these |
| Answer» D. 300w | |
| 23. |
Which among the following is a reversible change? |
| A. | Growth in plants and animals. |
| B. | Burning of cloth. |
| C. | Cooking of food. |
| D. | Bursting a balloon |
| E. | None of these |
| Answer» F. | |
| 24. |
Properties of three substances X, Y and Z are given below :X : Heavy and non-magneticY : Light and non-magneticZ : MagneticIf X, Y and Z are of same size and colour then, which of the following can be used to separate these particles from their mixture? |
| A. | Handpicking followed by filtration |
| B. | Winnowing followed by magnetic separation |
| C. | Magnetic separation followed by sieving |
| D. | Sublimation followed by distillation |
| Answer» C. Magnetic separation followed by sieving | |
| 25. |
The table below shows the properties of four substances K, L, M and N. Substance Colour Taste Magnetic Dissolves in water K White Salty No Yes L Blue Sweet No No M White Sweet Yes Yes N Black Metallic Yes No Which two substances would be most difficult to separate when mixed in water? |
| A. | K and L |
| B. | K and M |
| C. | L and M |
| D. | M and N |
| Answer» C. L and M | |
| 26. |
A process in which the impure sample is first heated in order to vapourise the liquid and then these vapours of liquid are made to cool to give pure liquid. The complete process is called |
| A. | condensation |
| B. | distillation |
| C. | sublimation |
| D. | None of these |
| Answer» C. sublimation | |
| 27. |
Select the object (s) from the following options which has shine. |
| A. | Plastic toy |
| B. | Steel spoon |
| C. | Wooden spoon |
| D. | Both (b) and (c) |
| Answer» C. Wooden spoon | |
| 28. |
The sea water changes to water vapour |
| A. | by solar energy |
| B. | by heat of sun |
| C. | Both the above |
| D. | None of these |
| Answer» D. None of these | |
| 29. |
Sugar is the product of which one of the following process? |
| A. | Respiration |
| B. | Photosynthesis |
| C. | Transpiration |
| D. | Transportation |
| E. | All of these |
| Answer» C. Transpiration | |
| 30. |
It is a low-lying open area of ground where city's garbage is normally dumped. Name it |
| A. | Landfill |
| B. | Disposal field |
| C. | Open field |
| D. | Both and |
| E. | None of these |
| Answer» B. Disposal field | |
| 31. |
By which method is wheat flour separated from wheat bran? |
| A. | Handpicking |
| B. | Sieving |
| C. | Winnowing |
| D. | Filtration |
| Answer» C. Winnowing | |
| 32. |
Which one of the following statements is correct? Statement 1: The process of converting a magnetic material into a magnet is called magnetization Statement 2: A piece of glass can be converted into a magnet |
| A. | (a) Statement 1 |
| B. | (b) Statement 2 |
| C. | (c) Both statements are correct |
| D. | (d) Both statements are incorrect |
| E. | (e) None of these |
| Answer» B. (b) Statement 2 | |
| 33. |
In which one of the following kinds of changes no new substance are formed? |
| A. | Physical changes |
| B. | Chemical changes |
| C. | Irreversible changes |
| D. | All of these |
| E. | None of these |
| Answer» B. Chemical changes | |
| 34. |
Which one of the following is an example of marine habitats? |
| A. | Ocean |
| B. | Seas |
| C. | Ponds |
| D. | Both and |
| E. | None of these |
| Answer» E. None of these | |
| 35. |
Which one of the following organs stores liquid which is secreted by the liver in the human body? |
| A. | Small intestine |
| B. | Gall bladder |
| C. | Pancreas |
| D. | All of these |
| Answer» C. Pancreas | |
| 36. |
Select the incorrect match. Type of vertebrae No. of vertebrae (i) Cervical vertebrae 7 (ii) Thoracic vertebrae 12 (iii) Lumbar vertebrae 4 (iv) Sacral vertebrae 5 (v) Caudal vertebrae 5 |
| A. | (iii) and (v) only |
| B. | (ii), (iii) and (iv) only |
| C. | (i), (iii) and (v) only |
| D. | (ii) and (v) only |
| Answer» B. (ii), (iii) and (iv) only | |
| 37. |
The given graph represents how three different living organisms (X, Y and Z) cope with the external environmental conditions. Study the graph and select the correct option regarding X, Y and Z. |
| A. | X could be a mammal. |
| B. | Y could be a bird. |
| C. | Z could be a mammal. |
| D. | X could be a bird. |
| Answer» C. Z could be a mammal. | |
| 38. |
DIRECTIONS (Qs. 46 to 48): On the basis of followingdiagram/picture answer the questions given below. In which container you would find something floating on the surface of water? |
| A. | (i) |
| B. | (ii) |
| C. | (iii) |
| D. | (iv) |
| Answer» D. (iv) | |
| 39. |
Leaves may be simple or compound. Which of the given figures show(s) compound leaves? |
| A. | a only |
| B. | b, c and d only |
| C. | a and d only |
| D. | All of these |
| Answer» C. a and d only | |
| 40. |
Small populations of three types of organisms; X, Y and Z were kept in captivity. Plenty of plants were present in that area. The change in the population of these organisms with time was plotted in the graph as shown here. Which of the following conclusion is incorrect regarding their eating habits? |
| A. | X could be a carnivore that feeds on Z but not on Y. |
| B. | Both X and Y could be herbivores and Z could be a carnivore whose population declines as it does not prey on both X and Y. |
| C. | If X and Y are herbivores, then X has higher reproductive potential than Y. |
| D. | None of these |
| Answer» E. | |
| 41. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 You are asked to add two spoons of solid salt to some liquid water taken in a beaker. On stirring it you find that whole of the salt has disappeared and only liquid can be seen in beaker. Which of the following processes will be useful to get salt from this solution? |
| A. | Condensation |
| B. | Evaporation |
| C. | Filtration |
| D. | Sedimentation |
| Answer» C. Filtration | |
| 42. |
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion A: It would not be wise to use plastic materials for cooking vessels. Reason R: We choose materials to make an object depending on its properties, and the purpose for which object is to be used. |
| A. | Both A and R are true and R is the correct explanation of A. |
| B. | Both A and R are true but R is not the correct explanation of A. |
| C. | A is true but R is false. |
| D. | A is false but R is true. |
| Answer» C. A is true but R is false. | |
| 43. |
Which of the following separation techniques is used for separating a mixture of two or more gases? |
| A. | Sedimentation |
| B. | Liquification |
| C. | Hand picking |
| D. | Decantation |
| Answer» C. Hand picking | |
| 44. |
Parth is preparing lemonade by adding salt, sugar and ice in lemon juice. For quick preparation, what sequence should be followed? |
| A. | Sugar - Salt ? Ice |
| B. | Ice-Sugar-Salt |
| C. | Sugar - Ice ? Salt |
| D. | Salt-Ice-Sugar |
| Answer» B. Ice-Sugar-Salt | |
| 45. |
Name the mineral whose deficiency causes goitre. |
| A. | Iodine |
| B. | Phosphorus |
| C. | Iron |
| D. | Calcium |
| E. | None of these |
| Answer» B. Phosphorus | |
| 46. |
Why is water useful to life on the earth? (i) It maintains ecological balance. (ii) It sustains life. (iii) It is necessary for respiration in aquatic organisms. |
| A. | Only (i) and (ii) |
| B. | Only (ii) and (iii) |
| C. | Only (i) and (iii) |
| D. | (i), (ii) and (iii) |
| Answer» E. | |
| 47. |
Shobha took two liquids (coconut oil and water) in a separating funnel as shown in the figure. What would she observe after some time? |
| A. | Layer 'X is coconut oil, 'Y is water and two distinct layers are formed. |
| B. | Layer 'X is water, 'Y" is coconut oil and two distinct layers are formed. |
| C. | Layers 'X' and ?Y? are miscible to some extent, hence do not form distinct layers, |
| D. | Coconut oil is first collected in the beaker, |
| Answer» B. Layer 'X is water, 'Y" is coconut oil and two distinct layers are formed. | |
| 48. |
Study the given table showing some daily D used items which can be made from more than one material. ItemsWoodPlasticMetalGlass(i)Cooking potxx(ii)Storage container (iii)LPG cylinder x(iv)Tea cup xWhich of these are incorrect? |
| A. | (i) and (iv) |
| B. | (i), (iii) and (iv) |
| C. | (i) and (iii) |
| D. | (ii) and (iii) |
| Answer» C. (i) and (iii) | |
| 49. |
Choose the omnivores from the following. |
| A. | Tiger shark |
| B. | King cobra |
| C. | Horse |
| D. | Ant |
| E. | None of these |
| Answer» E. None of these | |
| 50. |
Which of the following are changed when water boils? (i) Temperature (ii) State (iii) Colour |
| A. | Only (i) and (ii) |
| B. | Only (ii) and (iii) |
| C. | Only (i) and (iii) |
| D. | (i), (ii) and (iii) |
| Answer» B. Only (ii) and (iii) | |