National Science Olympiad Forum By SOF Olympiad Trainer - Page 630

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7

Ans 2:

Class : Class 5

Ans 3:

Class : Class 7

Ans 4:

Class : Class 5

Ans 5:

Class : Class 7

Ans 6:

Class :
c

Ans 7:

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

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Subject :NSO    Class : Class 8

Ans 1:

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

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 10
d is the answer

Ans 2:

Class : Class 8
d

Ans 3:

Class : Class 8

Ans 4:

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

Ans 5:

Class : Class 3
Correct answer is D

Ans 6:

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

Ans 7:

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

Ans 8:

Class : Class 9
the correct is 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

Ans 3:

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

Ans 2:

Class :
wool burns with smell of burning hair

Ans 3:

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 4:

Class : Class 9
Supposed to be D

Ans 5:

Class :
(D)

Ans 6:

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

Ans 7:

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 8:

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 9:

Class : Class 9
wrong answerthe answer should be B

Ans 10:

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

Ans 11:

Class : Class 10

Ans 12:

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

Ans 13:

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

Ans 14:

Class : Class 8
Correct answer is A

Ans 15:

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

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

Class :

Ans 3:

Class : Class 4
qwertyuiopasdfghjkkklzxcvbnm

Ans 4:

Class : Class 4

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 9

Ans 8:

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

Ans 9:

Class : Class 8
I think c

Ans 10:

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

Ans 11:

Class : Class 9

Ans 12:

Class : Class 9

Ans 13:

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

Ans 14:

Class : Class 8

Ans 15:

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

Ans 16:

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

Ans 17:

Class :
THERE IS NO SOLUTION SOB HOW CAN WE UNDERSTAND

Ans 18:

Class : Class 4

Ans 19:

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

Ans 20:

Class :

Ans 21:

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

Ans 22:

Class :
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 7
Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Ans 2:

Class : Class 5
A

Ans 3:

Class : Class 7
I

Ans 4:

Class : Class 5
A

Ans 5:

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

Ans 6:

Class :
Answer is A

Ans 7:

Class : Class 9
the answer is A

Ans 8:

Class : Class 7

Ans 9:

Class : Class 6
A

Ans 10:

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

Ans 11:

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

Ans 12:

Class : Class 6

Ans 13:

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

Ans 14:

Class :
l

Ans 15:

Class : Class 5

Ans 16:

Class : Class 5
Yes

Ans 17:

Class : Class 6
A

Ans 18:

Class :
Answer is A

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