National Science Olympiad Forum By SOF Olympiad Trainer - Page 335
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AKSHAJ SRIVASTAVA from MOUNT LITERA ZEE SCHOOL, Kanpur
Subject :NSO    Class : Class 8

Ans 1:

Ankit kumar Jha from Ryan International School , Ghaziabad
Class : Class 9
C is the answer

Ans 2:

Sanjeev Kumar from Mount Litera Zee School, Jhansi
Class : Class 8

Ans 3:

abishek from Chennai Public School, Chennai
Class : Class 8
Minimum pressure means maximum area as pressure is inversely proportional to area so, 1 cm = 1/100 m so the Largest area is 40cm*30cm = 4/10* 3/10 = 12/100 P =F/Area P = Mass*acceleration/area P = 60*10/(12/100) P = 600 * 100/12 P = 60000/12 = 5000 so answer is C

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Vaibhav Elisetti from sri chaitanya techno school Nallagandla, Hyderabad
Subject :NSO    Class : Class 5

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Aditya Ananda Bharali from Chirec International School,Kondapur , Hyderabad
Subject :NSO    Class : Class 2

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Gauri Singh from St Johns School Marhauli, Varanasi
Subject :NSO    Class : Class 7

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Dhruv Sachdev from Bhavan Vidyalaya, chandigarh
Subject :NSO    Class : Class 3

Ans 1:

Debajit Roy from ,
Class : Class 3
C is the answer.

Ans 2:

Abir Jha from CNS, Mumbai
Class : Class 3
C cannot be the answer as R can't be insects as insects breathe through spiracles and not lungs.

Ans 3:

Mohit Gupta from Sat Paul mittal school, Ludhiana
Class : Class 3
B should be answer

Ans 4: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

C

S could be insects, so they can possess six legs. R can be birds, they possess only two legs. So, this statement is incorrect.


Ans 5:

Krisha malik from Sacred heart convent school, Ludhiana
Class : Class 3
Thanks for telling

Ans 6:

Alina Chattopadhyay from Tagore International School, Vasant Vihar, New Delhi, South Delhi
Class : Class 6
i got it wrong

Ans 7:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
ccccc

Ans 8:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
C

Ans 9:

Yatindra G from SBOA, Chennai
Class : Class 4
HOW??I don't understand!!!!!!!!

Ans 10:

Meghatyoya from Adamas World School , Barasat
Class : Class 3
option c is the correct option because R is a bird

Ans 11:

Aadyah Dixit from Greenwood High International School, Bangalore
Class : Class 4
R can be any mammal and S can be insects, as mammals have 4-2 legs answer C is wrong and answer B is correct. But my computor is showing that C is correct. HOW!?!!?

Ans 12:

Rishik De Sarkar from Delhi Public School Gurgaon, Gurgaon
Class : Class 7
c

Ans 13:

Poorani from ,
Class : Class 1
pls explain the answer

Ans 14:

YAJAT KUMAR from RPS PUBLIC SCHOOL , Narnaul
Class : Class 3
I have given wrong answer

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Tanmay Mehta from Nirmala Convent high school, Renukoot
Subject :NSO    Class : Class 9

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KARTHI BALAJI from SBOA SCHOOL AND JUNIOR COLLEGE, CHENNAI
Subject :NSO    Class : Class 8

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Dushyant Singh from Shri Ram Centennial School, Indore
Subject :NSO    Class : Class 5

Ans 1:

Gaithri shree Madhan from Dawn School, Chennai
Class : Class 6

Ans 2:

Shivesh Senthilkumar from vels vidyashram, chennai
Class : Class 6

Ans 3:

Shivesh Senthilkumar from vels vidyashram, chennai
Class : Class 6

Ans 4:

UMANG from SPRING DALE COLLAGE, Lucknow
Class : Class 8
ANS IS 154

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Harsh Gupta from AECS Narora, Narora
Subject :NSO    Class : Class 9

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Rhyin Mandal from Hem Sheela Model School, DURGAPUR
Subject :NSO    Class : Class 8

Ans 1:

Prabhnoor from Delhi Public School, Chandigarh
Class : Class 9
according to reactivity series K>Na>Ca>Mg>Al>Zn>Fe>Pb>H>Cu>Hg>Ag>Au>Pt the metal should be between Al and Cu and hence Fe is the answer

Ans 2:

Nikita Nair from DPS Noida, Ghaziabad
Class : Class 9

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