National Science Olympiad Forum By SOF Olympiad Trainer - Page 562

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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 6
c

Ans 3:

Class : Class 7

Ans 4:

Class : Class 5

Ans 5:

Class : Class 7

Ans 6:

Class : Class 7

Ans 7:

Class : Class 5

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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
the correct is D.

Ans 2:

Class : Class 3
Correct answer is D

Ans 3:

Class : Class 8

Ans 4:

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

Ans 5:

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

Ans 6:

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

Ans 7:

Class : Class 9
d is the answer

Ans 8:

Class : Class 8
d

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
I agree Areen

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 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.

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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 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 2:

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

Ans 3:

Class : Class 9
wrong answerthe answer should be B

Ans 4:

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

Ans 5:

Class : Class 9
Supposed to be D

Ans 6:

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

Ans 7:

Class : Class 8
wool burns with smell of burning hair

Ans 8:

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 9:

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

Ans 10:

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 11:

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

Ans 12:

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

Ans 13:

Class : Class 10

Ans 14:

Class : Class 8
Correct answer is A

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 9

Ans 2:

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

Ans 3:

Class : Class 4
qwertyuiopasdfghjkkklzxcvbnm

Ans 4:

Class : Class 4

Ans 5:

Class : Class 8

Ans 6:

Class : Class 4

Ans 7:

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

Ans 8:

Class : Class 4

Ans 9:

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

Ans 10:

Class : Class 8
I think c

Ans 11:

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

Ans 12:

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

Ans 13:

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

Ans 14:

Class : Class 9

Ans 15:

Class : Class 4

Ans 16:

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

Ans 17:

Class : Class 9

Ans 18:

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

Ans 19:

Class : Class 9
Kqwertyuiopasdfghjklzxcvbnm,.-/:;(₹

Ans 20:

Class : Class 9

Ans 21:

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

Ans 22:

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

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

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

Ans 3:

Class : Class 4
l

Ans 4:

Class : Class 5
Yes

Ans 5:

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

Ans 6:

Class : Class 7
Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Ans 7:

Class : Class 6
A

Ans 8:

Class : Class 5
Answer is A

Ans 9:

Class : Class 5
A

Ans 10:

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

Ans 11:

Class : Class 6

Ans 12:

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

Ans 13:

Class : Class 5
Answer is A

Ans 14:

Class : Class 7

Ans 15:

Class : Class 7
I

Ans 16:

Class : Class 6
A

Ans 17:

Class : Class 9
the answer is A

Ans 18:

Class : Class 5
A

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