National Science Olympiad Forum By SOF Olympiad Trainer - Page 561

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 9
C

Ans 2:

Class : Class 3

Ans 3:

Class : Class 6
Explain

Ans 4:

Class : Class 9
C

Ans 5:

Class : Class 8

Ans 6:

Class : Class 9
explain

Ans 7:

Class : Class 6
C is fax which is type of visual communication

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
I am bengali , hindi , english and malayalam . This looks pity to me !!!!!!!!!!!!!!!!!!!

Ans 2:

Class : Class 5

Ans 3:

Class : Class 6
c

Ans 4:

Class : Class 5

Ans 5:

Class : Class 7

Ans 6:

Class : Class 7

Ans 7:

Class : Class 7

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

Ans 2:

Class : Class 8
d is the answer

Ans 3:

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

Ans 4:

Class : Class 9
the correct is D.

Ans 5:

Class : Class 8
d

Ans 6:

Class : Class 8

Ans 7:

Class : Class 3
Correct answer is D

Ans 8:

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

Ans 3:

Class : Class 5

Ans 4:

Class : Class 5
I agree Areen

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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 9
wrong answerthe answer should be B

Ans 2:

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

Ans 3:

Class : Class 10

Ans 4:

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 5:

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

Ans 6:

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 7:

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

Ans 8:

Class : Class 8
wool burns with smell of burning hair

Ans 9:

Class : Class 9
Supposed to be D

Ans 10:

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

Ans 11:

Class : Class 8
Correct answer is A

Ans 12:

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

Ans 13:

Class : Class 8
(D)

Ans 14:

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

Ans 15:

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.

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 9

Ans 2:

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

Ans 3:

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

Ans 4:

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

Ans 5:

Class : Class 8
I think c

Ans 6:

Class : Class 8

Ans 7:

Class : Class 9

Ans 8:

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

Ans 9:

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

Ans 10:

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

Ans 11:

Class : Class 9

Ans 12:

Class : Class 4

Ans 13:

Class : Class 4

Ans 14:

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

Ans 15:

Class : Class 4

Ans 16:

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

Ans 17:

Class : Class 9

Ans 18:

Class : Class 4

Ans 19:

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

Ans 20:

Class : Class 9
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Ans 21:

Class : Class 4
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Ans 22:

Class : Class 4
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