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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.
| 1951. |
The bones become soft and bend easily due to the deficiency of |
| A. | Vitamin C |
| B. | Vitamin D |
| C. | Vitamin A |
| D. | Vitamin B |
| Answer» C. Vitamin A | |
| 1952. |
Which one of the following is and excellent source of calcium? |
| A. | Broccoli |
| B. | Nuts |
| C. | Meat |
| D. | Grains |
| Answer» B. Nuts | |
| 1953. |
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): Dried beans and eggs contain appreciable amounts of phosphorus. Reason (R): Milk and dairy products are excellent sources of phosphorus. |
| 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. | |
| 1954. |
A metallic piece (X) is dropped into copper sulphate solution. After some time, the blue colour of the solution changes to green. The change which has occurred is |
| A. | Physical and reversible change |
| B. | Physical and irreversible change |
| C. | Chemical and reversible change |
| D. | Chemical and irreversible change. |
| Answer» E. | |
| 1955. |
Study the given Venn diagram carefully. The centre point X represents |
| A. | Burning of paper |
| B. | Dissolving salt in water |
| C. | Boiling of an egg |
| D. | Bursting of a balloon. |
| Answer» D. Bursting of a balloon. | |
| 1956. |
______ is a substance in a chemical reaction which does not undergo any change but helps in increasing the rate of chemical reaction. |
| A. | Reactant |
| B. | Product |
| C. | Inhibitor |
| D. | Catalyst |
| E. | None of these |
| Answer» E. None of these | |
| 1957. |
Making of curd from milk is which kind of change? |
| A. | Unwanted change |
| B. | Reversible change |
| C. | Irreversible change |
| D. | No change |
| E. | None of these |
| Answer» D. No change | |
| 1958. |
When water freezes to ice: |
| A. | Heat energy is absorbed. |
| B. | Heat energy is given out. |
| C. | Both [a] and [b] |
| D. | Either [a] or [b] |
| E. | None of these |
| Answer» C. Both [a] and [b] | |
| 1959. |
Which of the following food substance deficiency leads to rickets? |
| A. | Vitamin D |
| B. | Phosphorus |
| C. | Calcium |
| D. | All of these |
| Answer» B. Phosphorus | |
| 1960. |
You can find fats abundantly in which of the following food substances? |
| A. | Wheat, rice, sugar and potatoes. |
| B. | Ghee, oil, milk and cheese. |
| C. | Soyabeans, fish and meat. |
| D. | Carrots, mangoes and lemon fruits. |
| Answer» C. Soyabeans, fish and meat. | |
| 1961. |
DIRECTIONS: Read the passage(s) given below and answer the questions that follow Passage - 3 Deficiency of one or more nutrients can cause diseases or disorders in our body. Diseases that occur due to lack of nutrients over a long period are called deficiency diseases. If a person does not get enough proteins in foodfor a long time. He is likely to have |
| A. | stunted growth |
| B. | swelling of face |
| C. | discolorations of hair |
| D. | All of the above |
| Answer» E. | |
| 1962. |
Which of the following vitamins is present in the given substances? |
| A. | Vitamin E |
| B. | Vitamin D |
| C. | Vitamin K |
| D. | Vitamin C |
| Answer» C. Vitamin K | |
| 1963. |
The given figure shows the rotation and revolution of the earth on its axis and around the sun respectively. What kind of change does the earth undergo? |
| A. | Physical change |
| B. | Chemical change |
| C. | Periodic change |
| D. | Undesirable change |
| Answer» D. Undesirable change | |
| 1964. |
Which of the following changes is slow and periodic? |
| A. | The rotation of the earth |
| B. | The rusting of iron |
| C. | The curdling of milk |
| D. | The evaporation of petrol |
| Answer» B. The rusting of iron | |
| 1965. |
Food rich in roughages are |
| A. | fried foods |
| B. | pulses |
| C. | noodles |
| D. | fruits and vegetables |
| Answer» E. | |
| 1966. |
Charcoal burning on the grill is an example of |
| A. | physical change |
| B. | chemical change |
| C. | periodic change |
| D. | reversible change |
| Answer» C. periodic change | |
| 1967. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow Passage - 2 Sheetal once preparing evening tea. In the mean while telephone bellrangs and she rushed upto attend telephone call. She got busy on phone and sudden heard a sound from kitchen. When she enter back in kitchen. She saw that tea water was boiling with steal over it and cover of tea container is flew a side with water droplets over it. Water droplets on cover of tea container represents |
| A. | condensation |
| B. | evaporation |
| C. | melting |
| D. | freezing |
| Answer» B. evaporation | |
| 1968. |
DIRECTIONS: Match Column-I with Column-II and select the correct answer using the codes given below the columns. Column-I (Mineral) Column-II (Source) A. Iron (p) Milk and milk products B. Calcium (q) Leafy green vegetables C. Iodine (r) Protein rich foods like meat, fish D. Phosphorus (s) Sea weeds |
| A. | \[A\to (q);B\to (p);C\to (s);D\to (r)\] |
| B. | \[A\to (p);B\to (q);C\to (r);D\to (s)\] |
| C. | \[A\to (r);B\to (s);C\to (p);D\to (q)\] |
| D. | \[A\to (s);B\to (r);C\to (q);D\to (p)\] |
| Answer» B. \[A\to (p);B\to (q);C\to (r);D\to (s)\] | |
| 1969. |
Plants require nitrogen for |
| A. | reproduction. |
| B. | photosynthesis. |
| C. | transpiration. |
| D. | their growth. |
| Answer» E. | |
| 1970. |
When a new substance is formed with different properties than the original substance it is called |
| A. | chemical change |
| B. | physical change |
| C. | freezing |
| D. | boiling |
| Answer» B. physical change | |
| 1971. |
Which part of the human skeleton retains cartilage even in an adult? |
| A. | Jaw |
| B. | Ear |
| C. | Nose |
| D. | All of these |
| Answer» B. Ear | |
| 1972. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow Passage - 4 Mohan was boiling water in a pan for making tea. His brother Ram came there and observed that during boiling of water some bubbles are formed. He told his brother Mohan that boiling of water is a chemical change as gas is evolved in this process. But Mohan argued that this is not a chemical change. What kind of change takes place after formation of tea? |
| A. | Physical change |
| B. | Chemical change |
| C. | Reversible change |
| D. | Both and |
| Answer» C. Reversible change | |
| 1973. |
Select the one that is incorrect about cartilage. |
| A. | It is a firm but flexible skeletal material. |
| B. | It is as hard as bones. |
| C. | It can be bent. |
| D. | It is found in the joints of our body. |
| Answer» C. It can be bent. | |
| 1974. |
Which among the following is an example of movable joints? |
| A. | Joint between bones of cranium. |
| B. | Joint between upper jaw and skull. |
| C. | Joint between lower jaw and skull. |
| D. | All the above |
| E. | None of these |
| Answer» D. All the above | |
| 1975. |
Movement organ in snail is _____. |
| A. | Fins |
| B. | Muscular foot |
| C. | Legs |
| D. | Body |
| E. | None of these |
| Answer» C. Legs | |
| 1976. |
A gas that is present in air and makes about 4/5th (by volume) of air. It is also not a supporter of combustion? |
| A. | Oxygen |
| B. | Nitrogen |
| C. | Water vapours |
| D. | Hydrogen |
| Answer» C. Water vapours | |
| 1977. |
Corals are/is |
| A. | the tiny animals that live in shells in the sea |
| B. | a special variety of fish that live in shells |
| C. | a particular type of shell found near some of the sea coasts |
| D. | the remains of tiny sea animals resembling shells |
| Answer» E. | |
| 1978. |
For which of the following processes is air essential? (i) Respiration (ii) Combustion (iii) Buring |
| A. | Only (i) and (ii) |
| B. | Only (ii) and (iii) |
| C. | Only (i) and (iii) |
| D. | (i), (ii) and (iii) |
| Answer» E. | |
| 1979. |
We must not use excess water during cooking as it may |
| A. | result in loss of carbohydrates |
| B. | result in loss of minerals and proteins |
| C. | result in loss of fats |
| D. | Both (b) and (c) |
| Answer» C. result in loss of fats | |
| 1980. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow Passage - 1 Copper statues exposed to carbon dioxide and water in the air become coated with patina. The patina is not copper, it is not carbon dioxide, and not water. It is a new substance formed by the reaction of these chemicals with one another. The appearance of patina on copper statues when these are exposed to moist air is which type of change? |
| A. | Physical change |
| B. | Chemical change |
| C. | Periodic change |
| D. | Non-periodic change |
| Answer» C. Periodic change | |
| 1981. |
The disease called anaemia is caused due to the deficiency of which of the following? |
| A. | Iron |
| B. | Calcium |
| C. | Phosphorus |
| D. | Vitamin A |
| Answer» B. Calcium | |
| 1982. |
What kind of change do the batteries used in a wrist watch undergo? |
| A. | A physical change |
| B. | A periodic change |
| C. | A chemical change |
| D. | An endothermic change |
| Answer» D. An endothermic change | |
| 1983. |
Which one of the following vitamins and their deficiency diseases is paired incorrectly? |
| A. | Vitamin A - Poor night vision. |
| B. | Vitamin \[{{B}_{1}}\] - Beri Beri. |
| C. | Vitamin C - Scurvy. |
| D. | Vitamin D - Pellagra |
| Answer» E. | |
| 1984. |
Identify a change that is NOT man-made and is irreversible. |
| A. | The burning of paper |
| B. | The stretching of a spring by a suspended weight |
| C. | Soil erosion due to floods |
| D. | The boiling of an egg |
| Answer» D. The boiling of an egg | |
| 1985. |
Sudha took lemon juice in two flasks. She put salt in flask I and washing soda in flask II. She observed lots of bubbles in flask II but nothing in flask I. What could be the reason for this? |
| A. | In flask I, a chemical change takes place. |
| B. | In flask II, a chemical change takes place and bubbles of carbon dioxide are seen. |
| C. | In flask II, a physical change takes place producing lots of bubbles. |
| D. | In flask I, salt reacts with lemon juice and forms a new compound. |
| Answer» C. In flask II, a physical change takes place producing lots of bubbles. | |
| 1986. |
Raveena covered a beaker of boiled water with a metal tray as shown in the diagram. The beaker and metal tray were then removed from the tripod stand and left on the table. After two minutes, which of the following can be observed? |
| A. | Water droplets are seen on the outer part of metal tray. |
| B. | Water droplets are seen on the inner part of tray and inner part of the beaker. |
| C. | Water droplets are seen on the inner part of metal tray and outer part of the beaker. |
| D. | Water droplets are seen on the outer part of beaker only. |
| Answer» C. Water droplets are seen on the inner part of metal tray and outer part of the beaker. | |
| 1987. |
Underwater divers wear which of the following things to move easily in water? |
| A. | A head torch |
| B. | Helmet |
| C. | Flippers |
| D. | A watch |
| Answer» D. A watch | |
| 1988. |
Which of these show the uses of air? |
| A. | (i)only |
| B. | (ii) only |
| C. | (i), (ii) and (iii) |
| D. | and (ii) only |
| Answer» D. and (ii) only | |
| 1989. |
Why should we have dietary fibres in our food? |
| A. | Fibres provide much more energy |
| B. | Fibres protect out body from diseases |
| C. | Fibres help to get rid of undigested food |
| D. | Fibres help in water retention |
| Answer» D. Fibres help in water retention | |
| 1990. |
DIRECTIONS: The questions in this segment consists of two statements, one labelled as ?assertion 4? 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 odes given below. Assertion (A): Earthworm has muscles that help to extend or shorten body. Reason (R): Muscles can only pull and not push. |
| 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. | |
| 1991. |
Select a reversible change. |
| A. | milk to paneer |
| B. | growth of a tree |
| C. | cow-dung to biogas |
| D. | ice-cream to molten ice cream |
| Answer» E. | |
| 1992. |
Spilled water on the table when evaporates, the process involves: |
| A. | Releasing of heat |
| B. | Absorption of heat |
| C. | Both [a] and [b] |
| D. | Either [a] or [b] |
| E. | None of these |
| Answer» C. Both [a] and [b] | |
| 1993. |
Why is earthquake considered a non-periodic change? |
| A. | Its occurrence is possible at any time. |
| B. | It occurs rarely at some places. |
| C. | It occurs only in certain quake prone areas. |
| D. | None of above |
| Answer» B. It occurs rarely at some places. | |
| 1994. |
The energy required to start a chemical reaction is known as: |
| A. | Kinetic energy |
| B. | Activation energy |
| C. | Potential energy |
| D. | Magnetic energy |
| E. | None of these |
| Answer» C. Potential energy | |
| 1995. |
Which organism have stream lined body covered with scales, a swim bladder and a flexible vertebral column attached to muscles? |
| A. | Bird |
| B. | Earthworm |
| C. | Snail |
| D. | Fish |
| Answer» E. | |
| 1996. |
Why is the rusting of iron termed as a chemical change? |
| A. | It is a temporary change. |
| B. | It can be cleaned and the original substance can be recovered. |
| C. | It is a slow reaction. |
| D. | A new substance is formed. |
| Answer» E. | |
| 1997. |
Choose the correct alternative to complete the given analogy. Physical change : Boiling : : Chemical change: _________ |
| A. | Melting |
| B. | Burning |
| C. | Condensing |
| D. | Evaporating |
| Answer» C. Condensing | |
| 1998. |
A paste of food item was taken in a test-tubeand to it was added a few drops of coppersulphate solution followed by caustic sodasolution. A violet colour was observed in the test-tube after a few minutes. It shown the presence of which one of the following components in the food sample? |
| A. | Proteins |
| B. | Carbohydrates |
| C. | Fats |
| D. | None of these |
| Answer» B. Carbohydrates | |
| 1999. |
Which of the following is true about air? (i) Air is a mixture of several gases. (ii) Air exerts pressure. (iii) The composition of air is constant in all places. |
| 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) | |
| 2000. |
Which of the following is the quickest source of energy? |
| A. | Sugar |
| B. | Proteins |
| C. | Starch |
| D. | Fats |
| Answer» B. Proteins | |