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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.
| 1651. |
Which type of change takes place when a rolled roti is baked on taw a? |
| A. | physical change |
| B. | permanent change |
| C. | periodic change |
| D. | None of these |
| Answer» C. periodic change | |
| 1652. |
Which of the following is a fat free and rich source of Vitamin A? |
| A. | Carrot |
| B. | Potato |
| C. | Honey |
| D. | Eggs |
| Answer» B. Potato | |
| 1653. |
Deficiency of vitamin A causes ??????? |
| A. | beriberi |
| B. | night blindness |
| C. | scurvy |
| D. | rickets |
| Answer» C. scurvy | |
| 1654. |
DIRECTIONS: Look at the following diagram and answer the following question. Which of the following represents 'P'? |
| A. | Freezing of water into ice |
| B. | Burning of coal |
| C. | Cooking of food |
| D. | Bursting of cracker |
| Answer» B. Burning of coal | |
| 1655. |
Which of the following does NOT take place during the tearing of a paper? |
| A. | Change of shape |
| B. | Change of size |
| C. | Change of substance |
| D. | All of the above |
| Answer» D. All of the above | |
| 1656. |
The gas used by aquatic animals for respiration? |
| A. | Dissolved nitrogen |
| B. | Dissolved oxygen |
| C. | Dissolved air |
| D. | None of these |
| Answer» D. None of these | |
| 1657. |
Which of the following can show the direction of the wind? |
| A. | An anemometer |
| B. | A wind mill |
| C. | A windvane |
| D. | A barometer |
| Answer» D. A barometer | |
| 1658. |
Identify P and Q in the given chart. |
| A. | P Q Gliding Joint Pivot Joint |
| B. | P Q Hinge Joint Ball and socket joint |
| C. | P Q Pivot joint Hinge joint |
| D. | P Q Hinge joint Gliding joint |
| Answer» C. P Q Pivot joint Hinge joint | |
| 1659. |
Carbohydrates and fats containing food are called |
| A. | protective foods |
| B. | fibrous foods |
| C. | body building foods |
| D. | energy giving foods |
| Answer» E. | |
| 1660. |
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: Explosion of a bomb is an exothermic change. Reason R: Large amount of heat energy is released during explosion of bomb. |
| 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. | |
| 1661. |
Read the given statements and mark the correct option. Statement 1: While fixing a metal rim on a wooden wheel of a cart, the size of the metal rim is kept slightly smaller than that of the wooden wheel. Statement 2: Metals expand on heating and contract on cooling. |
| A. | Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1. |
| B. | Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1. |
| C. | Statement 1 is true and statement 2 is false. |
| D. | Both statements 1 and 2 are false. |
| Answer» B. Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1. | |
| 1662. |
Observe the given processes 1 and 2 carefully. Which of the following statements are correct?I. Bubbles are formed in process 1 while no bubble formation takes place in process 2.II. Process 1 is slow while process 2 is fast.III. Process 1 occurs at \[{{100}^{o}}C\]only while process 2 can occur at any temperature. |
| A. | I and II only |
| B. | II and III only |
| C. | I and III only |
| D. | All of these. |
| Answer» D. All of these. | |
| 1663. |
Do you think we break molecules when we turn chalk into chalk powder? |
| A. | Yes, chalk powder is formed by breaking chalk into small pieces. |
| B. | Yes, because formation of chalk powder is a chemical change. |
| C. | No because no new substance is formed molecules of chalk and chalk powder are same. |
| D. | Yes, because chalk is bigger in size than particles of chalk powder. |
| Answer» D. Yes, because chalk is bigger in size than particles of chalk powder. | |
| 1664. |
Which of the following is not a man-made change? |
| A. | Burning of fuels |
| B. | Change of day and night |
| C. | Drying of clothes |
| D. | Formation of curd from milk |
| Answer» C. Drying of clothes | |
| 1665. |
Swollen glands in neck, mental disability in children are the symptoms of deficiency of a mineral which is present in |
| A. | salt |
| B. | sugar |
| C. | chilli |
| D. | lemon |
| Answer» B. sugar | |
| 1666. |
Few changes are given below. Mark the correct option from the codes given below. (i) Milk is set to form curd. (ii) Batter is steamed to form idlis. (iii) Water is boiled to form steam. (iv) Salt is dissolved in water to form solution. |
| A. | (i) (ii) (iii) (iv) Physical Physical Chemical Chemical |
| B. | (i) (ii) (iii) (iv) Physical Chemical Physical Chemical |
| C. | (i) (ii) (iii) (iv) Chemical Chemical Physical Physical |
| D. | (i) (ii) (iii) (iv) Physical Chemical Chemical Physical |
| Answer» D. (i) (ii) (iii) (iv) Physical Chemical Chemical Physical | |
| 1667. |
Air moves with great speed during |
| A. | drought. |
| B. | cyclones. |
| C. | volcanic eruptions. |
| D. | floods. |
| Answer» C. volcanic eruptions. | |
| 1668. |
The joint between the upper jaw and rest of the head is |
| A. | a pivotal joint |
| B. | fixed joint |
| C. | a ball and socket joint |
| D. | a hinge joint |
| Answer» C. a ball and socket joint | |
| 1669. |
Nitrogen reacts with hydrogen under high temperature and pressure and forms ammonia. Which type of change is undergone in the given example? |
| A. | A chemical change |
| B. | A physical change |
| C. | An exothermic reaction |
| D. | A natural change |
| Answer» B. A physical change | |
| 1670. |
A very hot glass on putting under cold water cracks. This change is due to _______. |
| A. | expansion |
| B. | contraction |
| C. | formation of new substance |
| D. | None of these |
| Answer» C. formation of new substance | |
| 1671. |
Which of the following are examples of chemical changes? Cutting of wood Burning of wood Baking of cake Growth in plants and animals |
| A. | A and D |
| B. | B and C |
| C. | A, B and C |
| D. | B, C and D |
| Answer» E. | |
| 1672. |
DIRECTIONS: Read the passage(s) given below and answer the questions that follow Passage - 1 Carbohydrates mainly provide energy to our body. Fatsal so give us energy. In fact, fats give much more energy as compared to the same amount of carbohydrates. Foods containing fats and carbohydrates are called energy giving foods. Which of the following is not a plant source of fats? |
| A. | Groundnuts |
| B. | Milk |
| C. | Coconut oil |
| D. | Til |
| Answer» C. Coconut oil | |
| 1673. |
DIRECTIONS: Read the passage(s) given below and answer the questions that follow Passage - 3 If in a closed room there is some material that is burning, you may have felt suffocation. This is due to excess carbon dioxide that may be accumulating in the room. Plants and animals consume oxygen for respiration and produce carbon dioxide. Which of the following is produced by animals during respiration? |
| A. | Oxygen |
| B. | Nitrogen |
| C. | Carbon dioxide |
| D. | All of these |
| Answer» D. All of these | |
| 1674. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow Passage - 2 What is the term used to describe the phase change as a liquid becomes a solid? |
| A. | Evaporation |
| B. | Condensation |
| C. | Freezing |
| D. | None of the above |
| Answer» D. None of the above | |
| 1675. |
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: Respiration is an exothermic process. Reason R: In an exothermic process heat is evolved. |
| 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. | |
| 1676. |
Which two body systems most directly cause the arm to bend? |
| A. | Skeletal and muscular |
| B. | Reproductive and circulatory. |
| C. | Respiratory and excretory. |
| D. | Nervous and digestive |
| Answer» B. Reproductive and circulatory. | |
| 1677. |
Given below is a change that occurs in butter. Identify X and Y that cause change in the state of butter. |
| A. | X - Heat lost, Y - Heat gained |
| B. | X - Heat gained, Y - Heat lost |
| C. | X - Release of energy, Y - Absorption of energy |
| D. | X - Decrease in temperature, Y - Increase in temperature |
| Answer» C. X - Release of energy, Y - Absorption of energy | |
| 1678. |
The food items shown in the figure are sources of mainly of |
| A. | fats |
| B. | carbohydrates |
| C. | proteins |
| D. | vitamins. |
| Answer» C. proteins | |
| 1679. |
Which of the following is combustible? |
| A. | Oxygen |
| B. | Carbon dioxide |
| C. | Hydrogen |
| D. | All of these |
| Answer» D. All of these | |
| 1680. |
Which of the following classes of food is present in pulses? |
| A. | Vitamins |
| B. | Fats |
| C. | Carbohydrates |
| D. | Proteins |
| Answer» E. | |
| 1681. |
During burning of paper which of the following acts as reactant? |
| A. | Flame |
| B. | Ash |
| C. | Paper |
| D. | None of these |
| Answer» D. None of these | |
| 1682. |
Which of the following is a natural change? |
| A. | Cutting hair |
| B. | graying hair |
| C. | Oiling hair |
| D. | colouring hair |
| Answer» C. Oiling hair | |
| 1683. |
Softening of iron on heating is: i. Reversible change ii. Chemical change iii. Physical change iv. Irreversible change Which of the following is correct for the above statement? |
| A. | i and iii |
| B. | ii and iii |
| C. | i and iv |
| D. | iii and iv |
| E. | None of these |
| Answer» B. ii and iii | |
| 1684. |
If the chemical properties of a substance remain unchanged and the appearance or shape of a substance changes it is called a |
| A. | chemical change |
| B. | physical change |
| C. | slow change |
| D. | periodic change |
| Answer» C. slow change | |
| 1685. |
For strong bones and teeth which two minerals are needed the most? |
| A. | Iron and sodium |
| B. | Iron and calcium |
| C. | Iodine and fluorine |
| D. | Calcium and phosphorus |
| Answer» E. | |
| 1686. |
Which of the following does not have a backbone? |
| A. | Snake |
| B. | Bird |
| C. | Earthworm |
| D. | Fish |
| Answer» D. Fish | |
| 1687. |
Which of the following can reduce air pollution on roads? |
| A. | The widening of roads. |
| B. | Having more traffic lights on roads. |
| C. | Having less traffic lights on roads. |
| D. | Reducing the number of vehicles on roads. |
| Answer» E. | |
| 1688. |
Observe the given figure. What is the purpose of this experiment? |
| A. | To show that air has mass. |
| B. | To show that air has oxygen. |
| C. | To show that we can only feel air. |
| D. | To show that air is compressible. |
| Answer» B. To show that air has oxygen. | |
| 1689. |
DIRECTIONS: Read the following two statements carefully and choose the correct option. (i) Rusting of iron is a chemical change. (ii) The change of liquid water to ice on cooling is a reversible change. |
| A. | Statement (i) is correct while statement (ii) is in correct. |
| B. | Statement (ii) is correct while statement (i) is incorrect. |
| C. | Both statements are correct. |
| D. | Both statements are incorrect. |
| Answer» D. Both statements are incorrect. | |
| 1690. |
Which of the following nutrient if taken inexcess can course clogging of arteries? |
| A. | Oil yielding plants |
| B. | Medicinal plants |
| C. | Food plants |
| D. | None of these |
| Answer» C. Food plants | |
| 1691. |
Which of the following changes results in the formation of a new substance? |
| A. | Physical |
| B. | Chemical |
| C. | Reversible |
| D. | Periodic |
| Answer» C. Reversible | |
| 1692. |
The percentage of water vapour present in air is called |
| A. | density. |
| B. | humidity. |
| C. | mass. |
| D. | solubility. |
| Answer» C. mass. | |
| 1693. |
Which of the following is a periodic change? |
| A. | Change of season |
| B. | Phases of moon |
| C. | Beating of human heart |
| D. | All of these |
| Answer» E. | |
| 1694. |
Why is spoiling of food considered a chemical change? |
| A. | In it the food changes from one chemical substance to another |
| B. | It is not possible to get original food from spoiled food |
| C. | It is a permanent change |
| D. | All the above |
| Answer» E. | |
| 1695. |
What is the process by which a substance changes from solid to liquid state called? |
| A. | Boiling |
| B. | Condensation |
| C. | Freezing |
| D. | Melting |
| Answer» E. | |
| 1696. |
Which of the following food groups is are has the highest energy? |
| A. | Oil |
| B. | Butter |
| C. | Ghee |
| D. | All of these |
| Answer» E. | |
| 1697. |
A food sample is taken in a test-tube and a few drops of iodine solution were added to it. It was observed that the solution turned blue black. It shows the presence of which one of the following component in the food sample? |
| A. | Proteins |
| B. | Carbohydrate |
| C. | Fat |
| D. | Vitamins |
| Answer» C. Fat | |
| 1698. |
Which of these give more nutrients? Dalia Fruit juice Chapatis of maida Fruits and vegetables with peels |
| A. | Only II |
| B. | Only I and II |
| C. | Only I, II and III |
| D. | Only I, II and IV |
| Answer» E. | |
| 1699. |
Two richest known sources of edible protein are |
| A. | soyabean and groundnut |
| B. | some algae and micro-organisms |
| C. | meat and eggs |
| D. | milk and leafy vegetables |
| Answer» B. some algae and micro-organisms | |
| 1700. |
When charcoal is burnt in a closed room, it gets suffocating. The gas that is mainly responsible to cause suffocation is |
| A. | Nitrogen |
| B. | Carbon monoxide |
| C. | Carbon dioxide |
| D. | None of these |
| Answer» C. Carbon dioxide | |