National Science Olympiad Forum By SOF Olympiad Trainer - Page 568

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 10
DIt reflects the red colour and absorbs rest of the colours.

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 8
d

Ans 2:

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

Ans 3:

Class : Class 3
Correct answer is D

Ans 4:

Class : Class 9
the correct is D.

Ans 5:

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

Ans 6:

Class : Class 9
d is the answer

Ans 7:

Class : Class 8

Ans 8:

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

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

Class : Class 5
I agree Areen

Ans 3:

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 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
the answer is b . this is because sun tan is temporary.

Ans 2:

Class : Class 9
answer is b

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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
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 3:

Class : Class 8
(D)

Ans 4:

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

Ans 5:

Class : Class 9
wrong answerthe answer should be B

Ans 6:

Class : Class 9
Supposed to be D

Ans 7:

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

Ans 8:

Class : Class 10

Ans 9:

Class : Class 8
wool burns with smell of burning hair

Ans 10:

Class : Class 8
Correct answer is A

Ans 11:

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

Ans 12:

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 13:

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

Ans 14:

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 15:

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

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

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

Ans 3:

Class : Class 4

Ans 4:

Class : Class 7
There is no explanation for the answer. How do we understand Sof?

Ans 5:

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

Ans 6:

Class : Class 9

Ans 7:

Class : Class 8
I think c

Ans 8:

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

Ans 9:

Class : Class 4
qwertyuiopasdfghjkkklzxcvbnm

Ans 10:

Class : Class 4

Ans 11:

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

Ans 12:

Class : Class 8

Ans 13:

Class : Class 9

Ans 14:

Class : Class 9

Ans 15:

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

Ans 16:

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

Ans 17:

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

Ans 18:

Class : Class 9

Ans 19:

Class : Class 4

Ans 20:

Class : Class 4

Ans 21:

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

Ans 22:

Class : Class 7
There is no explanation for the answer. How do we understand sof?

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Subject :NSO    Class : Class 5

Ans 1:

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

Ans 2:

Class : Class 4
l

Ans 3:

Class : Class 7
I

Ans 4:

Class : Class 5
A

Ans 5:

Class : Class 9
the answer is A

Ans 6:

Class : Class 5
Answer is A

Ans 7:

Class : Class 5
A

Ans 8:

Class : Class 5
Yes

Ans 9:

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

Ans 10:

Class : Class 7

Ans 11:

Class : Class 5
Answer is A

Ans 12:

Class : Class 5

Ans 13:

Class : Class 7
Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Ans 14:

Class : Class 6
A

Ans 15:

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

Ans 16:

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

Ans 17:

Class : Class 6
A

Ans 18:

Class : Class 6

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9
A

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
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"?

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Subject :NSO    Class : Class 4

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