National Science Olympiad Forum By SOF Olympiad Trainer

aaditya sharma from dps, haryana

Subject :NSO Class : Class 7

The melting and boiling points of four different substances are shown in the table. The room temperature is 30°C.

Which of the following statements are incorrect about the data given in the table?
(i) Substance P is in solid state at room temperature.
(ii) Substance Q is in liquid state at room temperature.
(iii) Substance R is gas at -150°C and solid at -220°C.
(iv) Substance S is in solid state at room temperature.

A(i) and (ii) only
B(i), (ii) and (iii) only
C(iii) and (iv) only
D(i), (ii), (iii) and (iv)

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Aurinjay Mukhopadhyay from Future Foundation School, KOLKATA

Subject :NSO Class : Class 4

Which of the following has the same type of roots as mango plant?

ARice plant
BWheat plant
CCoriander plant
DOnion plant

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Reyansh Patel from dpsnoida, Noida

Subject :NSO Class : Class 5

Study the given flow chart carefully.

Identify the animals that can be placed at 1, 2, 3, 4 and 5.

A1-Dolphin, 2-Snake, 3-Giraffe, 4-Sparrow, 5-Mosquito
B1-Dolphin, 2-Goldfish, 3-Camel, 4-Mosquito, 5-Parrot
C1-Tortoise, 2-Jelly fish, 3-Frog, 4-Crow, 5-Owl
D1-Sea horse, 2-Dolphin, 3-Lion, 4-Parrot, 5-Silkworm

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Ans 1:

Anannya from Vigbyor High School Yerwada , Pune

Class : Class 6

A: 1-Dolphin, 2-Snake, 3-Giraffe, 4-Sparrow, 5-Mosquito

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Malay Singh from Delhi Public School Jamnipali Korba, Korba

Subject :NSO Class : Class 10

The diagram shows a circuit containing three light bulbs. The circuit is connected to a 12 V battery. What is the current I flowing across 6 Ω light bulb?

A1 A
B2 A
C0.67 A
D0.92 A

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Abhijeet Dhanda from BAL BHARATI SCHOOL, Bilaspur

Subject :NSO Class : Class 7

Ahmad pushed an empty plastic bottle into a pail of water as shown in the picture. Which of the following will take place if Ahmad is to unscrew and remove the cap of the bottle in the pail of water?

(a) Water rushes into the bottle.
(b) Air in the bottle becomes compressed.
(c) The water level in the pail remains the same.
(d) Bubbles move up rapidly to the surface of water.

A(a) and (c) only
B(a), (b) and (d) only
C(a) and (d) only
D(a), (c) and (d) only

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Ans 1:

Narayani Puranik from Jnana Prabodhini Prashala, Pune

Class : Class 7

Option B

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JeansKey JeansKeyzhu from dsdsd, usa

Subject :NSO Class : Class 4

In the game EA Sports FC 25, where football dreams come to life on the virtual pitch, the quest for success hinges on one essential element: coins. Coins are the lifeblood of your FIFA journey, allowing you to acquire top-tier players, build a formidable squad, and engage in the exhilarating world of in-game transactions. While patience can indeed be a virtue, sometimes, you need to fast-track your progress and bolster your coin reserves. In this article, we'll delve into the art of turbocharged coin accumulation, unveiling a variety of strategies and techniques to earn EA FC 25 coins super quickly in the game.

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swaraj patil from k.v.s, bihar

Subject :NSO Class : Class 4

There is a definite relationship between figures (i) and (ii). Establish a similar relationship between figures (iii) and (iv) by selecting a suitable figure from the options which will replace the (?) in figure (iv).

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Anusha from LBS School , Kota

Subject :NSO Class : Class 10

What is the ratio of the coefficients of the substance getting reduced to the substance getting oxidised if the following reaction is correctly balanced?
MnO₂ + Al Mn + Al₂O₃

A3 : 4
B4 : 3
C3 : 2
D2 : 3

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Ippili Anjana Shree from The Sun school , Vizianagaram

Subject :NSO Class : Class 3

The objective of Postmen is

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Dhrishaj from Kendriya Vidyalay, IISc, Bangalore

Subject :NSO Class : Class 5

Study the given diagram and answer the following question.

Which of the following best represents W, X, Y and Z?

AW-Rock, X-Bowl, Y-Wood, Z-Rock
BW-Eraser, X-Jewellery, Y-Woodn, Z-Glass
CW-Umbrella, X-Mirror, Y-Linen, Z-Wood
DW-Polybags, X-Pen, Y-Rock, Z-Wood

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