National Science Olympiad Forum By SOF Olympiad Trainer - Page 596

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
Correct answer is D

Ans 2:

Class : Class 9
You are wrong.The correct answer should be D.

Ans 3:

Class : Class 9
the correct is D.

Ans 4:

Class : Class 9
d is the answer

Ans 5:

Class : Class 3
I think you are right it should be D.

Ans 6:

Class : Class 6
You are right. It should be D.

Ans 7:

Class : Class 8

Ans 8:

Class : Class 8
d

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
Ans is A because bituminous is not an ore, typhoid is not a vector-borne disease and nutcracker is not a class 1 lever.

Ans 2:

Class : Class 5
I agree Areen

Ans 3:

Class : Class 5

Ans 4:

Class : Class 9
The correct answer is A because Bituminous is not a ore, typhoid is a water-borne disease and rest are vector-borne disease and nutcracker is an example of 2nd class lever whereas all the other are 1st class lever.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9
answer is b

Ans 2:

Class : Class 9
the answer is b . this is because sun tan is temporary.

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
How is this possible Nylon burns with smell of hair???

Ans 2:

Class : Class 9
nylon burns with a smell of plastic, not burning hair. WTF?

Ans 3:

Class : Class 9
How can Nylon burn with the smell of burning hair??

Ans 4:

Class : Class 8
wool burns with smell of burning hair

Ans 5:

Class : Class 8
Nylon should neither have a smell of burning hair nor the smell of burning paper. Nylon has a celery or plastic-like cell. Hence the correct answer is D. But on the other hand when acrylic burns, it shrinks and converts into black beads. On this contrast, the correct answer will be B with respect to acrylic and D with respect to Nylon. There is definitely an error in the options of the answers!

Ans 6:

Class : Class 8
Nylon does not have the smell of burning hair. So the answer should be d.

Ans 7:

Class : Class 8
IT SHOU BE D!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 8:

Class : Class 9
Supposed to be D

Ans 9:

Class : Class 9
IT must be D! Nylon does not burn with the smell of burning hair as it is purely synthetic and has no relation to the protein based hair.

Ans 10:

Class : Class 8
Correct answer is A

Ans 11:

Class : Class 10

Ans 12:

Class : Class 9
wrong answerthe answer should be B

Ans 13:

Class : Class 8
It should be D. Because nylon would never once burn with smell of paper in it's entire career. SOF, you gotta chnage the answer man.

Ans 14:

Class : Class 9
yes the answer is D. nylon burns with a smell of celery because its a synthetic fibre.

Ans 15:

Class : Class 8
(D)

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4

Ans 2:

Class : Class 4
qwertyuiopasdfghjkkklzxcvbnm

Ans 3:

Class : Class 4
There is no explanation for the answer. How do we understand sof?

Ans 4:

Class : Class 8
There is no explanation for the answer. How do we understand Sof?

Ans 5:

Class : Class 8
There is no explanation for the answer. How do we understand sof?

Ans 6:

Class : Class 9

Ans 7:

Class : Class 4

Ans 8:

Class : Class 8

Ans 9:

Class : Class 9

Ans 10:

Class : Class 4
Air always act as Frictional force against Gravity Hence ans is B in this case

Ans 11:

Class : Class 4
THERE IS NO SOLUTION SOB HOW CAN WE UNDERSTAND

Ans 12:

Class : Class 9
there is air friction against gravity. so answer is B

Ans 13:

Class : Class 4

Ans 14:

Class : Class 5
But they are telling that the right answer is option d

Ans 15:

Class : Class 9

Ans 16:

Class : Class 4

Ans 17:

Class : Class 10
Kqwertyuiopasdfghjklzxcvbnm,.-/:;(₹

Ans 18:

Class : Class 8
I think c

Ans 19:

Class : Class 4
qwertyuiopasdfghjklzxcvbnm,.-/:;(â1

Ans 20:

Class : Class 4
@ishi gupta i know this is irrevelent but its not sob its sof

Ans 21:

Class : Class 8
Yea, pls explain this question to us SOF admin

Ans 22:

Class : Class 9

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
I

Ans 2:

Class : Class 4
l

Ans 3:

Class : Class 5
AAAAAAAAAAAAAAAAA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 4:

Class : Class 5
A

Ans 5:

Class : Class 5

Ans 6:

Class : Class 7
Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Ans 7:

Class : Class 5
The answer could be both A or B because wheel barrows and screwdrivers are levers and wheel and axles

Ans 8:

Class : Class 6
A

Ans 9:

Class : Class 6
A

Ans 10:

Class : Class 5
Answer is A

Ans 11:

Class : Class 5
A

Ans 12:

Class : Class 9
the answer is A

Ans 13:

Class : Class 5
Yes

Ans 14:

Class : Class 9
why not B all the options are levers

Ans 15:

Class : Class 6

Ans 16:

Class : Class 5
Answer is A

Ans 17:

Class : Class 7

Ans 18:

Class : Class 6
Admin please tell me ,how is escalator a pulley?

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9
The answer must be the option "A", as it states so "Farheen filled container X with 100 ml of water." Container Y had just a different shape, and it was also broader, so how can it be the option "C"?

Ans 2:

Class : Class 9
It should be option A- Only 1 As water is liquid, the only change that can be seen is that of the change in shape. it volume will remain the same

Ans 3:

Class : Class 9
A

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 8

Ans 3:

Class : Class 6

Ans 4:

Class : Class 8
Thanks for the solution saanvi

Ans 5:

Class : Class 9
Thank you Sanvi

Ans 6:

Class : Class 9
I can not understand.

Ans 7:

Class : Class 8
i really can't understand.

Ans 8:

Class : Class 7
what is this?

Ans 9:

Class : Class 6
solution pls

Ans 10:

Class : Class 9
Thank you for the solution saanvi

Ans 11:

Class : Class 7
Yes, Saanvi u r right...Thanks Anamkhan

Ans 12:

Class : Class 5
i dont know

Ans 13:

Class : Class 7
Thank you saanvi

Ans 14:

Class : Class 6

Ans 15:

Class : Class 9
the sum of digits of the numbers in option a,b,d comes to 29. whereas in case of option c the total is 27.hence C is the correct answerwh

Ans 16:

Class : Class 7
Thanks Sanvi

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