National Science Olympiad Forum By SOF Olympiad Trainer - Page 545
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Avinash Mishra from Central Hindu School, Gorakhpur
Subject :NSO    Class : Class 10

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Arav Singh from Jyoti Niketan School, Azamgarh
Subject :NSO    Class : Class 5

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Raghav Tyagi from birla vidya niketan, new delhi
Subject :NSO    Class : Class 8

Ans 1:

Student from School, City
Class : Class 5
Explain with diagram in the solution.

Ans 2:

Jaidev Chowdhary from Shamrock International School, VIJAYAWADA
Class : Class 8

Ans 3:

Ayush Chauhan from Modern Public School, Bhiwadi
Class : Class 9

Ans 4:

Paarth Vashistha from Kunskapsskolan Gurgaon , Gurgaon
Class : Class 8
How will the bicycle move if one wheel is moving forward and other backward ?

Ans 5:

Venya from CHIREC International, Hyderabad
Class : Class 9
I don't understand how it is A. Both the wheels move in the same direction. It can't be C as the wheels are moving in the forward direction hence it is none of the above.

Ans 6:

AAshutosh Jindal from HOLY angels school, RAJPURA
Class : Class 8
D

Ans 7:

Nilanjana De from Delhi Public School North, Bengaluru
Class : Class 8
Can someone please explain why the answer is A?

Ans 8:

AAshutosh Jindal from HOLY angels school, RAJPURA
Class : Class 8
D

Ans 9:

Bipasana from KV IIT Kanpur, Kanpur
Class : Class 9
It IS A.

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SOMDATTA BHATTACHARYA from Delhi Public School, Dhaligaon, Bongaigaon
Subject :NSO    Class : Class 4

Ans 1:

Himanshu Tiwari from Billabong High International School, Bhopal
Class : Class 4
22

Ans 2:

Himanshu Tiwari from Billabong High International School, Bhopal
Class : Class 4
22

Ans 3:

Aishi Asati from Global city international School, Bangalore
Class : Class 4
D

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Arundhathi from NATIONAL PUBLIC SCHOOL, CHENNAI
Subject :NSO    Class : Class 4

Ans 1:

Himanshu Tiwari from Billabong High International School, Bhopal
Class : Class 4
Yes they do.

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
Yes!!

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Pranesh Sathish Kumar from Diya Academy of learning, Bengaluru
Subject :NSO    Class : Class 7

Ans 1:

Kartik Saxena from Mercy Memorial School, Kanpur
Class : Class 7
I will go with A

Ans 2:

Kartik Saxena from Mercy Memorial School, Kanpur
Class : Class 7
I will go with A

Ans 3:

Ved prajapati from Adani Vidya Mandir , Ahmedabad
Class : Class 8
(a)p

Ans 4:

Ritesh Narayan Das from Adamas International School, Kolkata
Class : Class 10
R

Ans 5:

Ashwin Shridhar from Vidyashilp Academy, Bangalore
Class : Class 9
R

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ADITHI M from NARAYANA E TECHNO SCHOOL, BANGALORE
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B. The pattern is in increasing powers of 5.

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SUBRATA MUKHERJEE from ,
Subject :NSO    Class : Class 8

Few statements are given below. Identify the incorrect statements and mark the appropriate option.
(i) In fractional distillation of petroleum, hydrocarbon with lowest boiling point condenses first.
(ii) Useful substances obtained from petroleum and natural gas are termed as ‘Petrochemicals’.
(iii) Coke is used in the extraction of many metals.
(iv) Paraffin wax used in candles, vaseline, grease, polish is obtained by destructive distillation of coal.

A (i) and (ii)
B (i) and (iv)
C (i), (ii) and (iii)
D (ii) and (iv)


It should be d

Ans 1:

PARTH JAIN from DPS INDIRAPURAM, GHAZIABAD
Class : Class 8

Ans 2:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 6

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B.

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Shivansh Tiwari from Deens Academy , Bangalore
Subject :NSO    Class : Class 3

Ans 1:

B Megashyam from Sri Chaitanya techno school, bengaluru
Class : Class 5
c

Ans 2:

B.S SWAYAM SIDHEE from MODERN PUBLIC SCHOOL, BALASORE
Class : Class 9
C

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Khushie from Gdgps gurugram, Gurgaon
Subject :NSO    Class : Class 5

Ans 1:

UMA Subramanian from Global Indian International School, Singapore
Class : Class 6

Ans 2:

Jasmit kaur from Sun Valley International School, Vashundra
Class : Class 7

Ans 3:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
Opt. B is incorrect as the stigmas in wind pollinated flowers is dull colored.

Ans 4:

Navya GUPTA from dps noida, Noida
Class : Class 3
Flowers should always be bright coloured to attract insects

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