National Science Olympiad Forum By SOF Olympiad Trainer - Page 448

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
Can anyone explain why Iodine is the odd one out?

Ans 2:

Class : Class 9
How is oil nor iodine can be odd one out in this question

Ans 3:

Class : Class 3
I don't think it's B as for the last one, cheese is a rich source of protein while the others are full of fats. The correct answer is C

Ans 4:

Class : Class 10
The correct option is B

Ans 5:

Class : Class 7

Ans 6:

Class : Class 8
the correct one is B

Ans 7:

Class : Class 6
yeah the correct option is B

Ans 8:

Class : Class 6
Explaination=1) Iodine is the odd one as it is a trace mineral (required in small amounts)2) Vitamin B is water soluble while the others are fat soluble 3) Oil is an unsaturated while the others are saturated

Ans 9:

Class : Class 8
In B,how is iodine the odd one out.

Ans 10:

Class : Class 6

Ans 11:

Class : Class 8
For part (i.) the odd one out is iodineBecause Iodine is a micronutrient while calcium, potassium, and sodium are macronutrients.For part (ii.) odd one is Vitamin B.Because Vitamin B is water-soluble vitamin while Vitamin A, D, and E are fat-soluble vitamins.For part (iii.) the odd one out is OilSince oil is unsaturated fat while Cheese, Butter, and Ghee are the saturated ones.

Ans 12:

Class : Class 7
answer b

Ans 13:

Class : Class 7
Answer should be B

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
b

Ans 2:

Class : Class 5
Cdba

Ans 3:

Class : Class 7
ans b

Ans 4:

Class : Class 3
answer is B

Ans 5:

Class : Class 9
Option (B) is correct. Doesn't it look like the foot of a Hen/Chicken?.

Ans 6:

Class : Class 8
The correct answer is B .

Ans 7:

Class : Class 6
The answer is B

Ans 8:

Class : Class 5
ANSWER IS B

Ans 9:

Class : Class 3
Answer is b or d

Ans 10:

Class : Class 5
very easy BBBBBBBBBBBB

Ans 11:

Class : Class 5

Ans 12:

Class : Class 8

Ans 13:

Class : Class 5

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 9
How can this be

Ans 2:

Class : Class 7
ANSWER IS C

Ans 3:

Class : Class 4
easy

Ans 4:

Class : Class 9

Ans 5:

Class : Class 4

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
Pag

Ans 2:

Class : Class 6
Ans is A because Prerna is facing towards the shop B and west means 90 degrees to her left.

Ans 3:

Class : Class 7
A

Ans 4:

Class : Class 7
shouldn't it be H , as it is saying "her west"............

Ans 5:

Class : Class 3
it was a confusing question as point g is an intermediate direction ( south - west )

Ans 6:

Class : Class 3
It’s not written shop bs direction acc to her

Ans 7:

Class : Class 3
The Answer is Shop G, but even I had a confusion whether it was Shop G or Shop H.

Ans 8:

Class : Class 4
Shop G

Ans 9:

Class : Class 9
it was a confusing question as point g is an intermediate direction ( south - west )The Answer is Shop G, but even I had a confusion whether it was Shop G or Shop H.Ans is A because Prerna is facing towards the shop B and west means 90 degrees to her left.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
i understood

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
A

Ans 2:

Class : Class 8
C

Ans 3:

Class : Class 4

Ans 4:

Class : Class 4
c

Ans 5:

Class : Class 8
C

Ans 6:

Class : Class 8
yeah

Ans 7:

Class : Class 4
C is incorrect, small intestine is not only for absorption, it also aids in digestion.

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
b is correct answer

Ans 2:

Class : Class 4
Option D

Ans 3:

Class : Class 8
How is the correct answer D.

Ans 4:

Class : Class 8
The correct answer should be B, not D.

Ans 5:

Class : Class 4
answer D is correct

Ans 6:

Class : Class 8

Ans 7:

Class : Class 7
the correct answer is option (B)

Ans 8:

Class : Class 8
The correct answer is D because air can be compressed.

Ans 9:

Class : Class 8
D because air can be COMPRESSED! So, lots of air can fit in a tiny container too!

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 10
The answer is ( d).

Ans 2:

Class : Class 6
how?????????

Ans 3:

Class : Class 10
why!

Ans 4:

Class : Class 7
iron is the correct answer as is will make the best electromagnet whereas steel is an alloy of iron and carbon.

Ans 5:

Class : Class 4
Technically, the copper experiment will also work and although it will form a weak magnet, it will be a magnet nonetheless. The question prompt asks to identify the experiments which will work and that is both A and will be the correct options

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
Wronged

Ans 2:

Class : Class 3

Ans 3:

Class : Class 3
THE ANS IS B

Ans 4:

Class : Class 6
B .

Ans 5:

Class : Class 8
The answer is B.

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Subject :NSO    Class : Class 3

Two containers X and Y, of the same size and thickness, contained 1000 mL and 600 mL of water, respectively. Both were heated over two separate flames till the water in them boiled.
If the water used in both containers took 10 minutes to reach boiling point, what conclusions can be made?
1. The flame used for container X is stronger than that used for container Y.
2. Container X is better conductor of heat than container Y.
3. The water in container X was colder than that in container Y at the beginning of the experiment.

A 1 only
B 2 only
C 1 and 2 only
D 1, 2 and 3


Ans 1:

Class : Class 4
Iamnot able to see the picture so i will not able to answer

Ans 2:

Class : Class 6
C . (1and 2 only)

Ans 3:

Class : Class 3
c ans

Ans 4:

Class : Class 3
D

Ans 5:

Class : Class 3
the correct answer will be c as if the water will be colder in x so it will boil more late

Ans 6:

Class : Class 4
idiots it's C!!!

Ans 7:

Class : Class 8

Ans 8:

Class : Class 6
C . (1and 2 only)

Ans 9:

Class : Class 4

Ans 10:

Class : Class 8

Ans 11:

Class : Class 5

Ans 12:

Class : Class 5
IT"s d

Ans 13:

Class : Class 6
C . (1and 2 only)

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