National Science Olympiad Forum By SOF Olympiad Trainer - Page 375
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B Krithika sulochana from Devi Academy senior secondary school, Chennai
Subject :NSO    Class : Class 8

Ans 1:

Kushi V from Jss Public School, bangalore
Class : Class 8
B. IMMUNIZATION

Ans 2:

Vasanth P from Little Angels, Karur
Class : Class 8
B is the correct option

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Bushra aslam from uttam, Ghaziabad
Subject :NSO    Class : Class 3

Ans 1:

Meghatyoya from Adamas World School , Barasat
Class : Class 3
d

Ans 2:

ANSHUL GAJJAR from PODAR INTERNATIONAL SCHOOL, AHMEDABAD
Class : Class 3
D

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Ashi Goyal from Sacred heart convent school,raikot road,barnala, punjab
Subject :NSO    Class : Class 5

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Vidit marwaha from Cambridge international school , Jalandhar
Subject :NSO    Class : Class 5

Ans 1:

Sanskriti Nagar from Rose Bud Academy, khagaria
Class : Class 5
D is the answer

Ans 2:

SIDDHARTH UPADHYAY from KENDRIYA VIDYALAYA EZHIMALA, KANNUR
Class : Class 4

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Ashi Goyal from Sacred heart convent school,raikot road,barnala, punjab
Subject :NSO    Class : Class 5

Four burning sticks are placed into different containers P, Q, R and S containing oxygen, carbon dioxide, nitrogen and air respectively. The observations are then noted down. Which of these observations is correct?

--------Container------------------Observation
AP------------------The glowing stick is extinguished immediately.
BQ------------------The glowing stick bursts into flame.
CR------------------The glowing stick bursts into flame.
DS------------------The glowing stick continues to glow for a while.


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vibhu mehrotra from Vidyashilp Academy, bangalore
Subject :NSO    Class : Class 7

Mr Roshan, class 11 teacher took various solutions of equal strength and mixed them in different test tubes as shown in the figure.

He asked the students to find the incorrect statement about the given experiment.

ABlue litmus solution turns red in test tubes 1 and 3.
BTurmeric solution turns red in test tube 1.
CChina rose indicator turns dark pink in test tubes 2 and 4.
DPhenolphthalein remains colourless in test tubes 2 and 4.


the answer given at A does not seem correct as solution in 1 will become basic.does any one have any comments?

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Anuj Sandesh Kanekar from Shrimant Maisaheb Bavadekar Academy, Kolhapur
Subject :NSO    Class : Class 6

Ans 1:

Agasthya S Ramkumar from Oakridge Internatioal School, Hyderabad
Class : Class 7
what??????

Ans 2:

Rishit from The Shri Ram school , New Delhi
Class : Class 7
so dumb

Ans 3:

Viraaj from Mount litera zee school, Hyderabad
Class : Class 6
it should be A

Ans 4:

Sharanya from Holy Cross School Agartala, Agartala
Class : Class 7

Ans 5:

Agasthya S Ramkumar from Oakridge Internatioal School, Hyderabad
Class : Class 7
The answer is clearly Ait is a no brainer

Ans 6:

SITANSHU from SVKM SCHOOL, DHULE
Class : Class 6

Ans 7:

Rishit from The Shri Ram school , New Delhi
Class : Class 7
It is A

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Ritwic Verma from The Shri Ram School Moulsari, New Delhi
Subject :NSO    Class : Class 7

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Aneesh Balaji from BVBARR school, Hyderabad
Subject :NSO    Class : Class 3

Ans 1:

Aneesh Balaji from BVBARR school, Hyderabad
Class : Class 4
c

Ans 2:

Yashaswin from KV afs begumpet, Hyderabad
Class : Class 3
c

Ans 3:

Vinay Dev Jhari from Delhi Public School, Noida
Class : Class 3

Ans 4:

ANSHUL GAJJAR from PODAR INTERNATIONAL SCHOOL, AHMEDABAD
Class : Class 3
C

Ans 5:

Abhigyan Sinha from Podar International School, Powai, Mumbai, Mumbai
Class : Class 7

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Aneesh Balaji from BVBARR school, Hyderabad
Subject :NSO    Class : Class 3

Ans 1:

Aneesh Balaji from BVBARR school, Hyderabad
Class : Class 4
b

Ans 2:

ANSHUL GAJJAR from PODAR INTERNATIONAL SCHOOL, AHMEDABAD
Class : Class 3
D

Ans 3:

SIDDHARTH SOMANI from Vibgyor High, Mumbai
Class : Class 5
B

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