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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.
| 1901. |
A chemical change is one which occurs with |
| A. | the formation of new substances |
| B. | the evolution or absorption of energy |
| C. | Both the above |
| D. | None of these |
| Answer» D. None of these | |
| 1902. |
Which of the following activities releases carbon dioxide into the atmosphere? |
| A. | Respiration |
| B. | Burning |
| C. | Photosynthesis |
| D. | Both (a) and (b) |
| Answer» E. | |
| 1903. |
What type of change is used for fixing a metal rim on a wooden wheel of a cart? |
| A. | physical change |
| B. | chemical change |
| C. | Both the above |
| D. | None of these |
| Answer» B. chemical change | |
| 1904. |
Guava is a source of which of the following vitamins? |
| A. | Vitamin A |
| B. | Vitamin B |
| C. | Vitamin C |
| D. | Vitamin D |
| Answer» D. Vitamin D | |
| 1905. |
Number of bones in human body is |
| A. | 106 |
| B. | 306 |
| C. | 206 |
| D. | 406 |
| Answer» D. 406 | |
| 1906. |
Number of bones in the cervical vertebral column of Giraffe is: |
| A. | 8 |
| B. | 10 |
| C. | 7 |
| D. | 9 |
| E. | None of these |
| Answer» D. 9 | |
| 1907. |
Movement in maximum directions occurs in: |
| A. | Pivot joint |
| B. | Hinge joint |
| C. | Ball and socket joint |
| D. | Gliding joint |
| E. | None of these |
| Answer» D. Gliding joint | |
| 1908. |
Bones are attached to muscles by: |
| A. | Ligaments |
| B. | Tendons |
| C. | Cartilage |
| D. | Joints |
| E. | None of these |
| Answer» C. Cartilage | |
| 1909. |
In an experiment the following changes were observed, (i) It was accompanied by change in colour (ii) It was accompanied by a change in temperature (iii) It was accompanied by a change in energy. The change involved can be classified as a |
| A. | periodic change |
| B. | non-periodic change |
| C. | physical change |
| D. | chemical change |
| Answer» E. | |
| 1910. |
When cold water is poured over the hot iron rim in a wooden wheel: |
| A. | It expands. |
| B. | It contracts. |
| C. | It remains same. |
| D. | All the above |
| E. | None of these |
| Answer» C. It remains same. | |
| 1911. |
Cooking of an egg in boiling water containing salt is a |
| A. | permanent change |
| B. | temporary change |
| C. | irreversible change |
| D. | Both (a) and (c) |
| Answer» E. | |
| 1912. |
Choose an incorrect match Minerals Deficiency disease |
| A. | Calcium Scurvy |
| B. | Iron Anaemia |
| C. | Phosphorus Rickets |
| D. | Iodine Grouter |
| Answer» B. Iron Anaemia | |
| 1913. |
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. Assertion (A): Atmosphere is essential for life on earth. Reason (R): Carbon dioxide is a colourless, odourless gas present in air. |
| 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. | |
| 1914. |
Which organism have jointed appendages to move? |
| A. | Insects |
| B. | Snail |
| C. | Earthworm |
| D. | Snake |
| Answer» B. Snail | |
| 1915. |
We cannot feel the pressure of atmosphere because |
| A. | pressure increases with decrease in altitude. |
| B. | pressure decreases with increase in altitude. |
| C. | pressure acts equally in all directions. |
| D. | pressure difference between atmosphere and inside our body is small. |
| Answer» E. | |
| 1916. |
What is the percentage of carbon dioxide present in air? |
| A. | 0.3% |
| B. | 0.03% |
| C. | 0.003% |
| D. | 1% |
| Answer» C. 0.003% | |
| 1917. |
Which joint is present at the hip region? |
| A. | Hinge joint |
| B. | Pivotjoint |
| C. | Pectoral joint |
| D. | Pelvic joint |
| Answer» E. | |
| 1918. |
DIRECTIONS: Match Column-I with column ?II and select the correct answer using the codes given below the column. Column-I Column-II A. The process of photosynthesis (p) This process involves reversible and irreversible process respectively B. Change in phases of moon (q) This process involves presence of sunlight C. Candle wax melts and bums at same time (r)This is the process which involves physical and chemical change respectively D. Cutting wood for furniture and burning of wood (s) This process occur after a fixed interval of time |
| A. | \[A\to (s),B\to (q),C\to (p),D\to (r)\] |
| B. | \[A\to (q),B\to (s),C\to (p),D\to (r)\] |
| C. | \[A\to (p),B\to (s),C\to (q),D\to (r)\] |
| D. | \[A\to (s),B\to (p),C\to (q),D\to (r)\] |
| Answer» C. \[A\to (p),B\to (s),C\to (q),D\to (r)\] | |
| 1919. |
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. Assertion (A): Aquatic animals use dissolved air (or oxygen) in water for respiration. Reason (R): When fuel is burnt, a smoke is produced. |
| 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. | |
| 1920. |
The body joints are classified in various type son the basis of |
| A. | nature of joints |
| B. | direction of movement allowed by them |
| C. | part of body where they are found |
| D. | Both (a) and (b) |
| Answer» E. | |
| 1921. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow Passage - 2 What term is used to describe the phase change of a solid to a liquid? |
| A. | Freezing |
| B. | Melting |
| C. | Boiling |
| D. | None of the above |
| Answer» C. Boiling | |
| 1922. |
Exothermic changes are changes in which: |
| A. | Heat is absorbed. |
| B. | Heat is liberated. |
| C. | Both [a] and [b] |
| D. | Either [a] or [b] |
| E. | None of these |
| Answer» C. Both [a] and [b] | |
| 1923. |
Which of the following enables us to drink a liquid through a straw? |
| A. | Humidity |
| B. | Temperature |
| C. | Atmospheric pressure |
| D. | Composition of air |
| Answer» D. Composition of air | |
| 1924. |
Raju is a 10 year old boy but he is obese. This is because he is?????? |
| A. | overeating carbohydrates and fats |
| B. | not eating enough carbohydrates and fats |
| C. | overeating proteins |
| D. | not eating enough proteins |
| Answer» B. not eating enough carbohydrates and fats | |
| 1925. |
A physical change is a |
| A. | is a temporary change |
| B. | change in which no new substance is formed |
| C. | reversible change |
| D. | All the above are correct |
| Answer» E. | |
| 1926. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow Passage - 1 The places in our body where two parts of our body seem to be joined is called a joint, e.g. in the elbow different bones are joined together. We can bend or move our body only at those points where bones meet. There are many different types of joints in our body to help in carrying out different movements and activities. A joint that allows movements in all directions is called |
| A. | pivotal joint |
| B. | hinge joint |
| C. | ball and socket joint |
| D. | None of these |
| Answer» D. None of these | |
| 1927. |
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 consumed by plants and animals during respiration? |
| A. | Oxygen |
| B. | Nitrogen |
| C. | Carbon dioxide |
| D. | None of these |
| Answer» B. Nitrogen | |
| 1928. |
Carbon dioxide gas can be tested by using (i) blue litmus paper. (ii) lime water. (iii) burning splinter. |
| A. | Only (i) and (ii) |
| B. | Only (ii) and (iii) |
| C. | Only (i) and (iii) |
| D. | (i), (ii) and (iii) |
| Answer» E. | |
| 1929. |
The part of the human skeleton shown in picture protects which of the following: |
| A. | Heart |
| B. | Lungs |
| C. | Windpipe |
| D. | All of these |
| Answer» E. | |
| 1930. |
DIRECTIONS: Match column-I with Column-II and select the correct answer using the code given below the columns. Column-I Column-II A. Burning of carbon in air to produce carbon dioxide (p) Endothermic change B. Melting of wax (q) Exothermic change C. A change accompanied by absorption of heat (r) Physical change D. A change accompanied by evolution of heat (s) Chemical change |
| A. | \[A\to (s),B\to (q),C\to (p),D\to (r)\] |
| B. | \[A\to (s),B\to (q),C\to (p),D\to (r)\] |
| C. | \[A\to (r),B\to (s),C\to (q),D\to (p)\] |
| D. | \[A\to (r),B\to (q),C\to (s),D\to (p)\] |
| Answer» C. \[A\to (r),B\to (s),C\to (q),D\to (p)\] | |
| 1931. |
The joints which help in the movement of knee is: |
| A. | Gliding joint |
| B. | Pivot joint |
| C. | Ball and socket joint |
| D. | Hinge joint |
| E. | None of these |
| Answer» E. None of these | |
| 1932. |
Proteins are essential |
| A. | for growth and repair of body tissues. |
| B. | to provide energy for our daily activities. |
| C. | for keeping our body fit and healthy. |
| D. | for strong bones and teeth. |
| Answer» B. to provide energy for our daily activities. | |
| 1933. |
Scurvy is |
| A. | a deficiency disease caused due to deficiency of vitamin C. |
| B. | a deficiency disease caused due to deficiency of vitamin D. |
| C. | a deficiency disease caused due to deficiency of vitamin A. |
| D. | a deficiency disease caused due to deficiency of minerals. |
| Answer» B. a deficiency disease caused due to deficiency of vitamin D. | |
| 1934. |
Why are plants called oxygen producer? |
| A. | They consume oxygen for respiration. |
| B. | They consume oxygen for photosynthesis. |
| C. | They produce more oxygen during photo-synthesis as compared to that they consume for respiration. |
| D. | All of the above |
| Answer» D. All of the above | |
| 1935. |
Human skeleton is formed by |
| A. | bones |
| B. | cartilages |
| C. | bones and cartilages |
| D. | bones, cartilages and muscles |
| Answer» D. bones, cartilages and muscles | |
| 1936. |
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: Small gap is left between the rails of a railway track. Reason R: Cooling of substances result in contraction. |
| 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. | |
| 1937. |
What happens to the metals on heating: |
| A. | They expand |
| B. | They contract |
| C. | They remains unaffected |
| D. | None of these |
| Answer» B. They contract | |
| 1938. |
Which among the following is incorrect statement? |
| A. | Rusting of iron is irreversible change. |
| B. | Ripening of fruits is a chemical change. |
| C. | Breaking of glass is a reversible change. |
| D. | All the above |
| E. | None of these |
| Answer» D. All the above | |
| 1939. |
Match the following on the basis of given chemical reaction: \[6C{{O}_{2}}+6{{H}_{2}}O\xrightarrow[Chlorophyll]{Sunlight}{{C}_{6}}{{H}_{12}}{{O}_{6}}+6{{O}_{2}}\] Column A Column B (i) \[C{{O}_{2}}\] [A] Product (ii) Chlorophyll [B] Photosynthesis (iii) \[{{O}_{2}}\] [C] Reactant (iv) Process [D] Catalyst |
| A. | (i-D), (ii-C), (iii-A), (iv-B) |
| B. | (i-B), (ii-D), (iii-C), (iv-A) |
| C. | (i-C), (ii-D), (iii-A), (iv-B) |
| D. | (i-C), (ii-B), (iii-D), (iv-A) |
| E. | None of these |
| Answer» D. (i-C), (ii-B), (iii-D), (iv-A) | |
| 1940. |
Name the substance which initiates a chemical reaction. |
| A. | Products |
| B. | Reactants |
| C. | Inhibitors |
| D. | Catalysts |
| E. | None of these |
| Answer» C. Inhibitors | |
| 1941. |
DIRECTIONS: Match Column-I with Column-II and select the correct answer using the codes given below the columns. Column-I Column-II A. Oxygen (p) Consumed by plants and animals during photosynthesis B. Carbon dioxide (q) Produced by animals during respiration C. Atmosphere (r) Animals that live under water D. Aquatic animals (s) Thin layer of air that surrounds the earth |
| A. | \[A\to (p);B\to (q);C\to (r);D\to (s)\] |
| B. | \[A\to (q);B\to (p);C\to (s);D\to (r)\] |
| C. | \[A\to (p);B\to (q);C\to (s);D\to (r)\] |
| D. | \[A\to (q);B\to (p);C\to (r);D\to (s)\] |
| Answer» C. \[A\to (p);B\to (q);C\to (s);D\to (r)\] | |
| 1942. |
Which of the following are desirable changes? (i) Drying of clothes (ii) Growth of weeds (iii) Cement getting hard when exposed to moisture (iv) Desalination of sea water |
| A. | Only (i) and (ii) |
| B. | Only (ii) and (iii) |
| C. | Only (i) and (iv) |
| D. | Only (i), (ii) and (iv) |
| Answer» D. Only (i), (ii) and (iv) | |
| 1943. |
Air is useful for |
| A. | generating electricity. |
| B. | the dispersal of seeds. |
| C. | bird's flight. |
| D. | all of the above. |
| Answer» E. | |
| 1944. |
In addition to proteins and carbohydrates, the other elements of nutritional value in milk include |
| A. | potassium and iron |
| B. | calcium and potassium |
| C. | calcium, potassium and iron |
| D. | calcium and iron |
| Answer» C. calcium, potassium and iron | |
| 1945. |
Guess who am I? I am present in air. I enter your lungs when you inhale air. You cannot live without me. I give energy to your body. |
| A. | Hydrogen |
| B. | Oxygen |
| C. | Nitrogen |
| D. | Carbon dioxide |
| Answer» C. Nitrogen | |
| 1946. |
Which part of body is protected by the vertebral column? |
| A. | Spinal cord |
| B. | Rib cage |
| C. | Brain |
| D. | Heart |
| Answer» B. Rib cage | |
| 1947. |
Select the features that belong to fats |
| A. | richest sources of energy |
| B. | insulate our body against loss of heat |
| C. | Both (a) and (b) |
| D. | None of these |
| Answer» D. None of these | |
| 1948. |
Ritu often complains of dry skin and is unable to see properly in dim light. She is suffering from |
| A. | anaemia |
| B. | night-blindness |
| C. | beri-beri |
| D. | None of these |
| Answer» C. beri-beri | |
| 1949. |
DIRECTIONS: Read the passage(s) given below and answer the questions that follow Passage - 2 The earth is surrounded by a thin layer of air. Thin layer extends upto many kilometers above the surface of earth and is called atmosphere. Which of the following statement(s) is/are correct? |
| A. | Atmosphere is essential for plants. |
| B. | Atmosphere is essential for human beings. |
| C. | Atmosphere is essential for life. |
| D. | None of these |
| Answer» D. None of these | |
| 1950. |
How do fishes move in water? |
| A. | Their streamlined bodies facilitates their movement in water. |
| B. | Fins or flippers help fish to gain speed. |
| C. | Tail which acts as a rudder helps fish to change its direction during the movement. |
| D. | The streamlined body, fins and tail help a fish to move in water. |
| Answer» E. | |