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MCQOPTIONS
This section includes 2637 Mcqs, each offering curated multiple-choice questions to sharpen your 7th Class knowledge and support exam preparation. Choose a topic below to get started.
| 2451. |
Directions: Read the following two statements carefully and choose the correct option. (i) Some plants reproduce by growing vegetative parts into new plants (ii) In sexual reproduction there is fusion of similar gametes. |
| A. | Statement (i) is correct while statement (ii) is incorrect. |
| B. | Statement (ii) is correct while statement (i) is incorrect. |
| C. | Both statements are correct. |
| D. | Both statements are incorrect. |
| Answer» B. Statement (ii) is correct while statement (i) is incorrect. | |
| 2452. |
Refer to the given figure. Which of the labelled parts is the egg cell? |
| A. | P |
| B. | Q |
| C. | R |
| D. | S |
| Answer» E. | |
| 2453. |
Select the plants which are pollinated by water. (i) Vallisneria (ii) Zostera (iii) Wheat (iv) Coconut (v) Sunflower (vi) Rafflesia |
| A. | (i), (ii), (iii) and (iv) only |
| B. | (i) and (ii) only |
| C. | (i), (ii), (iv) and (iv) only |
| D. | (iii) and (vi) only |
| Answer» C. (i), (ii), (iv) and (iv) only | |
| 2454. |
Refer to the given figure.Bees that collect nectar from the flower help carry X to other places. Which part of the flower should the bees touch to collect X? |
| A. | P |
| B. | Q |
| C. | R |
| D. | S |
| Answer» B. Q | |
| 2455. |
DIRECTIONS: The questions in this segment consists of two statements, one labeled 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): Spores are reproductive structures in some fungi plants. Reason (R): Spores have thick walls to survive unfavorable conditions. |
| 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. | |
| 2456. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 A thick underground stem of a plant which has stored food has a number of points on it, when the old stem of this plant is planted in the soil, then each point on its surface grows into a new plant. What is the name of this method of reproduction in plants? |
| A. | Vegetative propagation of tubers |
| B. | Sexual reproduction by seeds |
| C. | Vegetative propagation by bulbs |
| D. | Sexual reproduction by flowers |
| Answer» B. Sexual reproduction by seeds | |
| 2457. |
Corolla in a flower helps |
| A. | to produce male gametes |
| B. | to produce female gametes |
| C. | to hold pollen grains |
| D. | to attract insects |
| Answer» E. | |
| 2458. |
Sweet potatoes reproduce from |
| A. | modified leaves |
| B. | modified stem |
| C. | modified roots |
| D. | modified flowers |
| Answer» D. modified flowers | |
| 2459. |
Reproduction in yeast takes place by |
| A. | zygote |
| B. | fragmentation |
| C. | budding |
| D. | spore formation |
| Answer» D. spore formation | |
| 2460. |
Sugarcane plants are generally propagated by vegetative reproduction because |
| A. | they do not produce seeds |
| B. | the seeds are not viable |
| C. | the incidence of disease may be reduced; |
| D. | all of the above |
| Answer» C. the incidence of disease may be reduced; | |
| 2461. |
The following investigation was carried out using flower buds growing on three plants of the same species : Plant 1 The anthers were carefully removed and the buds left open to the air. Plant 2 The anthers were left untouched and a paper bag was tied tightly around each bud. Plant 3 The anthers were carefully removed and a paper bag was tied tightly around each bud. All flowers were opened normally but only those on plant 1 produced seeds. What can be inferred from it? |
| A. | Only cross-pollination can take place in this plant species. |
| B. | Only wind-pollination can take place in this plant species. |
| C. | Only insect-pollination can take place in this plant species. |
| D. | Both self and cross-pollination can take place in this plant species. |
| Answer» B. Only wind-pollination can take place in this plant species. | |
| 2462. |
Refer to the given figure showing three parent species, X, Y and Z (in plot I) and their respective seedlings after dispersal (in plot II).Select the incorrect statement regarding species X, Y and Z. (i) X could be pea plant in which fruits burst open forcibly after drying.(ii) Y could be Xanthium in which seeds are hooked i.e., have spines.(iii) Z could be Acer in which fruits and seeds have wings or hair like structure.(iv) X could be coconut, Y could be lotus and Z could be Calotropis. |
| A. | (iii) and (iv) only |
| B. | (i) and (ii) only |
| C. | (iii) only |
| D. | (iv) only |
| Answer» E. | |
| 2463. |
Ruchi collected four different kinds of seeds (W, X, Y and Z). The characteristic of each seed is given below. Identify the seeds and the agent of their dispersal and select the correct option.W Surrounded by tiny hairX Thick coat of fibresY Presence of hooks or spinesZ Enclosed in a fruit that bursts open when mature |
| A. | SeedAgent of dispersalW - DandelionWater |
| B. | SeedAgent of dispersalX - CoconutExplosion |
| C. | SeedAgent of dispersalY - XanthiumAir |
| D. | SeedAgent of dispersalZ - CottonExplosion |
| Answer» C. SeedAgent of dispersalY - XanthiumAir | |
| 2464. |
DIRECTIONS: Read the following three statements carefully and choose the correct option. (i) Anther is a part of stamen (ii) Filament is a part of stamen (iii) Anther contains pollen grains |
| A. | Statements (i) and (iii) are incorrect but (ii) is correct. |
| B. | Statements (i) and (ii) are incorrect but (iii) is correct. |
| C. | All statements are correct. |
| D. | All statements are incorrect. |
| Answer» D. All statements are incorrect. | |
| 2465. |
Female gametes are present in |
| A. | anther |
| B. | ovary |
| C. | pollen tube |
| D. | stigma |
| Answer» C. pollen tube | |
| 2466. |
The given table lists some plants and their reproductive structures. Plants Reproductive structures Bean plant X Onion Seeds Spores What should be at X and Y? |
| A. | X - Fern, Y - Spores |
| B. | X - Pineapple, Y ? Corms |
| C. | X - Moss, Y ? Bulbs |
| D. | X - Moss, Y ? Leaves |
| Answer» D. X - Moss, Y ? Leaves | |
| 2467. |
Consider the following statements and select the option which correctly identifies true (T) and false (F) ones.(i) Ovary ripens to form seed and ovule ripens to form fruit after fertilisation.(ii) Seed dispersed through water usually develop floating ability in the form of spongy or fibrous outer coat as in coconut.(iii) Pollination occurs before fertilisation.(iv) Cutting, layering, grafting and tissue culture are the natural methods of vegetative propagation. |
| A. | (i)(ii)(iii)(iv)FFTF |
| B. | (i)(ii)(iii)(iv)FTTF |
| C. | (i)(ii)(iii)(iv)TTTF |
| D. | (i)(ii)(iii)(iv)FTTT |
| Answer» C. (i)(ii)(iii)(iv)TTTF | |
| 2468. |
The table given below shows the various ways in which plants reproduce. Plants Ways of Reproduction Xanthium Z X Spores Potato Y Which of the following would you place in X, Y and Z? |
| A. | X Y Z Seeds Suckers Spores |
| B. | X Y Z Maple Eyes Seeds |
| C. | X Y Z Mucor Eyes Seeds |
| D. | X Y Z Drumstick Spores Suckers |
| Answer» D. X Y Z Drumstick Spores Suckers | |
| 2469. |
The landing of pollen grains on the stigma marks the end of which of the following processes? |
| A. | Fertilization |
| B. | Pollination |
| C. | Ovulation |
| D. | Germination |
| Answer» C. Ovulation | |
| 2470. |
Which of the following processes is represented by the figure given below? |
| A. | Fission in yeast |
| B. | Fragmentation in yeast |
| C. | Budding in yeast |
| D. | Sporeformation in yeast |
| Answer» D. Sporeformation in yeast | |
| 2471. |
Identify the process X and 'Y? the figure given below. |
| A. | X-cross pollination Y-self pollination |
| B. | X-self pollination Y-cross pollination |
| C. | X-Dispersal Y-Fertilization |
| D. | X-Germination, Y-Dispersion |
| Answer» B. X-self pollination Y-cross pollination | |
| 2472. |
The given figure illustrates a stage during reproduction in flowering plants. What is structure X? |
| A. | An ovule before pollination, but after fertilization. |
| B. | An ovule before fertilization, but after pollination. |
| C. | A pollen grain before pollination, but after fertilization. |
| D. | A pollen grain before fertilization, but after pollination. |
| Answer» E. | |
| 2473. |
A Which of the following seeds is NOT dispersed by wind? |
| A. | P |
| B. | Q |
| C. | R |
| D. | S |
| Answer» E. | |
| 2474. |
Which one is different from the others? 10, 24, 50, 122, 170 |
| A. | 10 |
| B. | 24 |
| C. | 50 |
| D. | 122 |
| Answer» C. 50 | |
| 2475. |
In the following series, how many '5's are there that are followed by a '9?? 4 5 7 6 8 5 2 9 5 8 9 6 1 5 9 8 6 4 5 3 2 5 9 8 9 5 |
| A. | 4 |
| B. | 2 |
| C. | 3 |
| D. | 1 |
| Answer» C. 3 | |
| 2476. |
Considering a certain pattern in the following figure, which letter will replace the question mark? |
| A. | L |
| B. | M |
| C. | S |
| D. | Q |
| Answer» C. S | |
| 2477. |
Select the alternative which represents three out of five alternatives figures which when fitted into each would from a complete square. |
| A. | II, III, I |
| B. | II, III, V |
| C. | I, II, IV |
| D. | I, II, III |
| Answer» C. I, II, IV | |
| 2478. |
If \['A*B'\] means ?B is the father of A' \['A\text{ }\$\text{}B'\]means 'A is the sister of B? \['AB'\] means 'A is the mother of B' \['A=B'\]means 'B is the brother of A' then which of the following means M is the aunt of R? |
| A. | \[~MQ\$N=R\] |
| B. | \[M\$NO=R\] |
| C. | \[M=O*S=R\] |
| D. | \[M\$N*O=R\] |
| Answer» C. \[M=O*S=R\] | |
| 2479. |
Direction for questions: In these questions, symbols and \[\] are used with different meanings as follows: \['AB'\] means \['A\] is not smaller than \[B'\] \['A\#B'\] means \['A\] is neither smaller than nor equal to \[B'\]. \['A%B'\] means \['A\] is not greater than \[B'\]. \['A\$B'\] means \['A\] is neither greater than nor equal to \[B'\] \['AB'\]means \['A\] is neither smaller than nor greater than \[B'\]. Statements: \[WX,\,\,X\#E,\,\,E\$N,\,\,N%G\] Conclusions: I. \[W\#E\] II. \[G\#E\] III. \[WG\] |
| A. | only I is true |
| B. | only II is true |
| C. | only either I or III is true |
| D. | Both I and II are true |
| Answer» E. | |
| 2480. |
Direction for questions: In these questions, symbols and \[\] are used with different meanings as follows: \['AB'\] means \['A\] is not smaller than \[B'\] \['A\#B'\] means \['A\] is neither smaller than nor equal to \[B'\]. \['A%B'\] means \['A\] is not greater than \[B'\]. \['A\$B'\] means \['A\] is neither greater than nor equal to \[B'\] \['AB'\]means \['A\] is neither smaller than nor greater than \[B'\]. Statements: \[U\$W,\,\,W%L,\,\,LM,\,\,M%I\] Conclusions: I. \[~W%I\] II. \[~U\$M\] III. \[U\$I\] |
| A. | only I and II are true |
| B. | only II and III are true |
| C. | only I and III are true |
| D. | All are true |
| Answer» E. | |
| 2481. |
Direction for questions: Seven Candidates Harry, Samy, Nicolas, Shane, Nancy, Lokesh and Serena are to be interviewed for selection as Trainee officers by different panels I to VII for different companies P, Q, R, S, T, U and W not necessarily in the same order. Nicolas is interviewed by panel IV for a company P. Samy is interviewed by panel III but not for company R or S. Harry is interviewed for company Q but not by panel I or II. Nancy is interviewed by panel VI for company T. Panel VII conducts the interview for company U. Shane is interviewed by panel I but not for company R. Panel II does not interview Lokesh. Who is interviewed for Company U? |
| A. | Lokesh |
| B. | Serena |
| C. | Nicolas |
| D. | Shane |
| Answer» B. Serena | |
| 2482. |
Direction for questions: Seven Candidates Harry, Samy, Nicolas, Shane, Nancy, Lokesh and Serena are to be interviewed for selection as Trainee officers by different panels I to VII for different companies P, Q, R, S, T, U and W not necessarily in the same order. Nicolas is interviewed by panel IV for a company P. Samy is interviewed by panel III but not for company R or S. Harry is interviewed for company Q but not by panel I or II. Nancy is interviewed by panel VI for company T. Panel VII conducts the interview for company U. Shane is interviewed by panel I but not for company R. Panel II does not interview Lokesh. Panel II conducts interview for which company? |
| A. | T |
| B. | Q |
| C. | R |
| D. | S |
| Answer» D. S | |
| 2483. |
Joy walked 35 m towards south. Then he turned to his left and walked 25 m. He turned to his left and walked 35 m. He again turned to his right and walked 10 m and then turned left and walked 12 m. At what distance is he from the starting point and in which direction? |
| A. | 37 m, North-East |
| B. | 38 m, North-East |
| C. | 35 m, North |
| D. | 36 m, North-West |
| Answer» B. 38 m, North-East | |
| 2484. |
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 2 Look at the following diagram and answer the given questions. Which of the following is the prevention method for the process shown in the given diagram? |
| A. | Painting iron door |
| B. | Coating of iron pipes with zinc metal |
| C. | Greasing of metal surface |
| D. | All of these |
| Answer» E. | |
| 2485. |
\[405{}^\circ \]Celsius is equal to ___ Fahrenheit. |
| A. | \[273{}^\circ \] |
| B. | \[761{}^\circ \] |
| C. | \[760{}^\circ \] |
| D. | \[972{}^\circ \] |
| Answer» C. \[760{}^\circ \] | |
| 2486. |
Which one of the following is essential for rusting of iron? |
| A. | Oxygen |
| B. | Water vapour |
| C. | Iron |
| D. | All the above |
| Answer» E. | |
| 2487. |
Kink in a clinical thermometer: |
| A. | Do not play any role. |
| B. | Expands the mercury. |
| C. | Prevents the mercury from flowing back into the bulb just after measuring temperature. |
| D. | Is the main unit of measuring temperature. |
| Answer» D. Is the main unit of measuring temperature. | |
| 2488. |
DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 1 A change in which two or more substances (reactants) combine to produce one or more new substances (products) that has/have different chemical properties than the reactants is called chemical change. In a chemical change new products are formed. The characteristics of a chemical change are following: 1. Heat, light or any other radiation (ultraviolet) may be given off or absorbed. 2. Sound may be produced. 3. A change in smell may take place or a new smell may be given off. 4. A colour change may take place. 5. A gas may be formed. Change in which only physical properties of any substances get changed and no new substance is formed is called a physical change. Such as shape, size, colour and state, is known as physical change. A physical change is mostly reversible and during physical change no new substances are formed. Which of the following occurs during a chemical change? |
| A. | Exchange of heat |
| B. | Change of smell |
| C. | Change of taste |
| D. | All of these |
| Answer» E. | |
| 2489. |
Fill in the blanks by choosing an appropriate option.When sugar is dissolved in water, it undergoes a ___(i)___ change but if sugar is heated in a test tube over the Bunsen burner flame, it first melts, turns brown and finally turns ___(ii)___. The new substance formed is ___(iii)___ and the change is a ___(iv)___ change. |
| A. | (i)(ii)(iii)(iv)Physical, reversibleBlackCharcoalChemical, irreversible |
| B. | (i)(ii)(iii)(iv)Physical, irreversibleBlackCoalChemical, irreversible |
| C. | (i)(ii)(iii)(iv)Physical, irreversibleRedCharcoalChemical, reversible |
| D. | (i)(ii)(iii)(iv)Physical, reversibleRedCoalChemical, reversible |
| Answer» B. (i)(ii)(iii)(iv)Physical, irreversibleBlackCoalChemical, irreversible | |
| 2490. |
Which of the following statement is true about chemical equation? |
| A. | Mass is conserved |
| B. | Atoms are conserved |
| C. | Mass as well as atoms are conserved |
| D. | Molecules are conserved |
| Answer» D. Molecules are conserved | |
| 2491. |
Surface of a reactive metal may be attacked by air, water or other substances causing corrosion. Corrosion of iron is called rusting. The product formed by rusting is: |
| A. | rust |
| B. | a brown solid |
| C. | Both of these |
| D. | None of these |
| Answer» D. None of these | |
| 2492. |
DIRECTIONS: On the basis of following diagram/ picture answer the questions given below: Which of the following represents a physical change? |
| A. | (i) and (ii) |
| B. | (ii) and (iii) |
| C. | (i) and (iii) |
| D. | only (i) |
| Answer» D. only (i) | |
| 2493. |
DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) Cutting of wood is considered as a chemical change (ii) Crystallization is a physical change |
| A. | Statement (i) is correct while statement (ii) is incorrect. |
| B. | Statement (ii) is correct while statement (i) is incorrect. |
| C. | Both statements are correct |
| D. | Both statements are incorrect. |
| Answer» C. Both statements are correct | |
| 2494. |
The shipping industry has to bear huge financial loss because of rusting of ships. The rusting of ships occur because: |
| A. | the body of ship is always in contact with water. |
| B. | the air around the ship is humid. |
| C. | presence of salts in sea water speed up the process of rusting. |
| D. | All of the above |
| Answer» E. | |
| 2495. |
Kanav took two test tubes marked as I and II. In test tube I, he put calcium carbonate and hydrochloric acid while in test tube II, he put zinc granules and hydrochloric acid. He passed the gas coming out from both the test tubes in lime water. What would be his observation? |
| A. | The gas coming out from test tube I turned lime water milky. |
| B. | The gas coming out from test tube II turned lime water milky. |
| C. | The gases coming out from both the test tubes turned lime water milky. |
| D. | None of these. |
| Answer» B. The gas coming out from test tube II turned lime water milky. | |
| 2496. |
Study the reaction given below. Copper sulphate (soln.) + Iron \[\to \] Iron sulphate (soln.) + Copper What kind of a change takes place in the given reaction? |
| A. | Chemical change |
| B. | Physical change |
| C. | Biochemical |
| D. | Both (A) and (B) |
| Answer» B. Physical change | |
| 2497. |
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): Burning of a candle is a physical change. Reason (R): The products formed by burning a candle cannot be easily converted back to original candle. |
| 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» E. | |
| 2498. |
Temperature of a boiling solution in the kitchen can be measured by using: |
| A. | Clinical thermometer |
| B. | Barometer |
| C. | Lab Thermometer |
| D. | Speedometer |
| Answer» D. Speedometer | |
| 2499. |
Boiling point of water is: |
| A. | 273 K |
| B. | 373 K |
| C. | 112 K |
| D. | 100 K |
| Answer» C. 112 K | |
| 2500. |
Two friends Raman and Raghu measured the body temperature of Yashika. According to Raman it was \[{{39}^{o}}C\] and according to Raghu it was\[{{102.2}^{o}}F\]. If the body temperature of Yashika on Kelvin scale is \[312.15\] then who is correct among the following? |
| A. | Raghu says Yashika has fever with \[39{}^\circ C.\] |
| B. | Raman says Yashika has fever with \[102.2{}^\circ F\] |
| C. | Both Raman and Raghu are correct. |
| D. | Either Raman or Raghu is correct. |
| Answer» C. Both Raman and Raghu are correct. | |