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Shayan Bari from Kendriya Vidyalaya, Katihar
Subject :NSO    Class : Class 7

Rahul gets an assignment to make a list of fabrics made of different fibres. He takes piece of fabric X and Y and burns them to identify the fibre. Fibre X burns with smell of burning plastic and fibre Y with smell of burning hair. Identify the fabrics X and Y.

             X                Y
ANylon          Cotton
BCotton          Silk
CWool            Polyester
DPolyester      Silk


Silk burns with the smell of charred meat, not burning hair.

Ans 1:

Anish from Vibgyor, Pune
Class : Class 8
silk smells of charred meat . This was the answer given even in the chapterwise question bank

Ans 2:

from , Jamnagar
Class : Class 7
It should be A

Ans 3:

Shayan Bari from Kendriya Vidyalaya, Katihar
Class : Class 7
tttt

Ans 4:

Agastya Varshney from Podar International School , Mumbai
Class : Class 7

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Pradanya from KV IIT, Chennai
Subject :NSO    Class : Class 8

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Pradanya from KV IIT, Chennai
Subject :NSO    Class : Class 8

Ans 1:

Anoushka Anbu from Amara Jyoti Public School, Bengaluru
Class : Class 8
Isn't it option a ?

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Tamrashi Pani from Sof Olympiad trainer international school, Bangalore
Subject :NSO    Class : Class 6

Ans 1:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 6
correct answer : D

Ans 2:

Aarush Patil from St.Arnold's, pune
Class : Class 1

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Tamrashi Pani from Sof Olympiad trainer international school, Bangalore
Subject :NSO    Class : Class 6

Ans 1:

Tamrashi Pani from Sof Olympiad trainer international school, Bangalore
Class : Class 7
D is correct

Ans 2:

SAI SHOURYA VARDHAN from T.I.M.E School, Hyderabad
Class : Class 6

Ans 3:

from null, null
Class : Class 6

Ans 4:

Tamrashi Pani from Sof Olympiad trainer international school, Bangalore
Class : Class 7
Current flows from positive terminal to negative terminal.... so the bulbs will glow simultaneously

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Pradanya from KV IIT, Chennai
Subject :NSO    Class : Class 8

Ans 1:

Anoushka Anbu from Amara Jyoti Public School, Bengaluru
Class : Class 8

Ans 2:

The Address from Somaiya, Mumbai
Class : Class 6

Ans 3:

Pradanya from KV IIT, Chennai
Class : Class 3
why??????????????

Ans 4:

The Address from Somaiya, Mumbai
Class : Class 6

Ans 5:

The Address from Somaiya, Mumbai
Class : Class 6

Ans 6:

Anoushka Anbu from Amara Jyoti Public School, Bengaluru
Class : Class 8
Because option a is correct as reaction takes place in all three beakersOption b is also correct as Mg is more reactive than Zn.Option c is also correct as Zn is more reactive than Ag.Option c is also correct because

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Pradanya from KV IIT, Chennai
Subject :NSO    Class : Class 8

Ans 1:

Pradanya from KV IIT, Chennai
Class : Class 3
why????????????????

Ans 2:

VISHNU T M from b, Bengaluru
Class : Class 9
Correct answer is D

Ans 3:

The Address from Somaiya, Mumbai
Class : Class 6

Ans 4:

The Address from Somaiya, Mumbai
Class : Class 6

Ans 5:

yug goswami from Dps , Jamnagar
Class : Class 8
speed= distance/time20=x/20so,x or distance is 400m

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Pradanya from KV IIT, Chennai
Subject :NSO    Class : Class 8

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Tamrashi Pani from Sof Olympiad trainer international school, Bangalore
Subject :NSO    Class : Class 6

Ans 1:

Tamrashi Pani from Sof Olympiad trainer international school, Bangalore
Class : Class 7
I think the answer is A

Ans 2:

Viraj from OMKAR ENGLISH MEDIUM SCHOOL CBSE, Kalyan
Class : Class 6
I think it is none of these

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PARTH JAIN from DPS INDIRAPURAM, GHAZIABAD
Subject :NSO    Class : Class 8

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