National Science Olympiad Forum By SOF Olympiad Trainer - Page 330
  1. Home
  2. /  Forum

User Forum

Ask Your Question
ADITYA KISHOR from dps, gaya
Subject :NSO    Class : Class 9

Post Your Answer

Debdyuti Basu from Salt Lake School English Medium, Kolkata
Subject :NSO    Class : Class 7

Ans 1:

Akshay Jha from DPS NERUL, Navi Mumbai
Class : Class 7
Should have given (i) plus water plus sodium acetate, just giving (i) makes it a lot more confusing and makes the second reaction a guessing game. Question should have been framed better.

Ans 2:

Sourasis kundu from St.agnes higher secondary School, Kharagpur
Class : Class 6

Ans 3:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
No, it's not... it is just made quite tricky! the answer is C. It asks two question simultaneously: 1. vinegar plus baking soda evolves which gas? 2. What is formed when CO2 reacts with lime water? Hope u know their answers!! ;)

Post Your Answer

SWARIT JAIN from DPS Greater Noida, GREATER NOIDA
Subject :NSO    Class : Class 4

Ans 1:

Rajat Khandelwal from T.I.M.E, Hyderabad
Class : Class 8
A

Ans 2:

Rakesh Parikh from DPS, Jaipur
Class : Class 5
A

Post Your Answer

aadityaarmaan from KVS Chabua, Dibrugarh
Subject :NSO    Class : Class 7

Ans 1:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
Answer is A because after 100 degree, the water begins to evaporate.. So no more rise in temperature.

Ans 2:

Aarnavi Mann from Scholars rosary Sr. Sec. School, Rohtak
Class : Class 8
It was every obvious , Gauri . But thanks

Ans 3:

Akash from dps, bangalore
Class : Class 7
lkjisan;h.d

Ans 4:

Atharva Shrikhande from Euro School, Pune
Class : Class 9

Ans 5:

Aarnavi Mann from Scholars rosary Sr. Sec. School, Rohtak
Class : Class 8
I meant very

Post Your Answer

Aditya from VEMS, Bhubaneswar
Subject :NSO    Class : Class 3

Post Your Answer

arnav from Dps noida, Delhi
Subject :NSO    Class : Class 6

Post Your Answer

Amol Athawale from WoodRidge High, aurangabad
Subject :NSO    Class : Class 8

Ans 1:

Daksh Saraswat from Rajiv international School, Mathura
Class : Class 8
Shouldn't it be cotton which keeps it cool and comfotable

Ans 2:

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

Ans 3:

RITASHREE ROY from VMS JOKA, KOLKATA
Class : Class 8
it should be cotton ... polyester is synthetic the basic character of polyester is hydrophobic .

Ans 4:

Ayaan jamal from Dddddd, Delhi
Class : Class 5
i guess cotton too

Ans 5:

Nimish shah from Chrysalis high , Banglore
Class : Class 8
no

Post Your Answer

arnav from Dps noida, Delhi
Subject :NSO    Class : Class 6
W

Post Your Answer

arjun from the bishops school camp , pune
Subject :NSO    Class : Class 7

Post Your Answer

Ayush Singh from LMB, Kolkata
Subject :NSO    Class : Class 4

Ans 1:

GAIRIK GHOSH from ST. AUGUSTINE'S DAY SCHOOL, BARRACKPORE, AGARPARA
Class : Class 6
The orbit marked as 'x'is of the sun i.e. option 'B'

Ans 2:

Tanirika Bansal from DPS Faridabad, Faridabad
Class : Class 4
sun has no orbit and moon has orbit around the earth so the answer is C .... COMMET

Ans 3:

Yahvi Sahay from D P S electronic city, Bengaluru
Class : Class 8

Ans 4:

Sashriti Das from Delhi Public School Bangalore North, Bangalore
Class : Class 5
Ashwak mind your words

Ans 5:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Every person who says the answer is A , B or D is MAD

Post Your Answer