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Anushka Hazarika from DPS Megacity, Kolkata
Subject :NSO    Class : Class 6

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arnav from the gurukul, Panchkula
Subject :NSO    Class : Class 8

Ans 1:

Adway Bachchan from Indian School Sohar, Sohar
Class : Class 8

Ans 2:

arnav raj sharma from gulibulium school, new york
Class : Class 8
(D) shall be the answer

Ans 3:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
The S zone is the zone surrounding the wick, where combustion doesn't take place. Hence, statement (iv) is false and the other three are true. Therefore, the answer should be Option D.

Ans 4:

midhuna from ABCD, Hyderabad
Class : Class 8
Blue, Orange, yellow nd black zone.. pl correct me if i am wrong. How (iv) correct?

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arnav from the gurukul, Panchkula
Subject :NSO    Class : Class 8

Ans 1:

Nimish shah from Chrysalis high , Banglore
Class : Class 8
Luminouse zone doesnt contain carbon particles. NSO please fix these errors

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arnav from the gurukul, Panchkula
Subject :NSO    Class : Class 8

Ans 1:

Neh singla from Delhi public school, Chandigarh
Class : Class 5
yes

Ans 2:

Amrit Biswas from INDUSVALLEY PUBLIC SCHOOL, Noida
Class : Class 10
it should be h2o instead of h2

Ans 3:

Eshaan Chakraborty from The Amaatra Academy, Bengaluru
Class : Class 8

Ans 4:

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

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arnav from the gurukul, Panchkula
Subject :NSO    Class : Class 8

Ans 1:

ANIKA SHUKLA from UDGAM SCHOOL FOR CHILDREN, AHMEDABAD
Class : Class 10
Exactly.

Ans 2:

Saranyaa Adak from Delhi Public School, Durgapur
Class : Class 10
Child's play though. calorific value=heat/unit mass of the fuel burnt =180,000/4.5 =40000 kJ/kg it is a question from our very own NCERT TEXTBOOK.

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arnav from the gurukul, Panchkula
Subject :NSO    Class : Class 8

Ans 1:

ARNAB MANDAL from NAVY CHILDREN SCHOOL, VIZAG
Class : Class 9
totally wrong

Ans 2:

PARTH JAIN from DPS INDIRAPURAM, GHAZIABAD
Class : Class 8

Ans 3:

Nimish shah from Chrysalis high , Banglore
Class : Class 8

Ans 4:

Student from School, City
Class : Class 8
What is "Apache tomcat error"? I wrote a long answer and it vanished.

Ans 5:

Saranyaa Adak from Delhi Public School, Durgapur
Class : Class 10
Sulfur dioxide and chlorine are not produced because CNG is composed of methane. The fact that it produces large amount of carbon dioxide is not helpful or advantageous by any means. Whether it is used in compressed form or not does not make it eco-friendly; but, yes, it produces no smoke SPM upon combustion. So correct answer is (B).

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Kriday from KDAV, Jamnagar
Subject :NSO    Class : Class 8

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Agustya vaid from Somerville school vasundhara enclave, Delhi
Subject :NSO    Class : Class 6

Ans 1:

Shriya from VIBGYOR High, Bangalore
Class : Class 10
A: Carbon dioxide gas does not support burning.

Ans 2:

Gargi from DPS school north, Bangalore
Class : Class 4

Ans 3:

malhar thorve from city internqtional school, satara road, pune
Class : Class 7
it can also be c because oxygen gas present in the air is necessary for burning

Ans 4:

Shivansh Pant from National Center For Excellence, Bangalore
Class : Class 10
A because co2 does not support burning

Ans 5:

Hitarth from Mushtifund High School , Goa
Class : Class 5
A

Ans 6:

Arav Gupta from Delhi Public School Gurgaon, Gurgaon
Class : Class 8
But it can also be c

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Agustya vaid from Somerville school vasundhara enclave, Delhi
Subject :NSO    Class : Class 6

Ans 1:

SKIyer from CNS, Mumbai
Class : Class 6
B, anybody marking something else is mad.

Ans 2:

Shaurya Shrivastava from Amanora school, Pune
Class : Class 6
what are you saying it is a

Ans 3:

Shivangi from GEA, Mumbai
Class : Class 6
its not B, we can't just casually fix a glass if its broken

Ans 4:

Vedant from DON BOSCO, CHENNAI
Class : Class 2
somone

Ans 5:

Avyukt Sahoo from Glendale Academy International, Hyderabad
Class : Class 8
depends on the weather

Ans 6:

Fellah Thashin from MS Dhoni global school , Hosur
Class : Class 6
It is A

Ans 7:

archit from Chinmaya Vidyalaya, Raibareli
Class : Class 8
B

Ans 8:

tanmay chaudhry from BAL BHAVAN PUBLIC SCHOOL, New Delhi
Class : Class 4
answer is b

Ans 9:

Agustya vaid from Somerville school vasundhara enclave, Delhi
Class : Class 7
yeahhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Ans 10:

Fellah Thashin from MS Dhoni global school , Hosur
Class : Class 6

Ans 11:

aaraadhanaa from innisfree house school, Bangalore
Class : Class 6
Yeah, it is A.

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Mradul from Modern public school bhiwadi, Bhiwadi
Subject :NSO    Class : Class 7

Ans 1:

Ahaan Pathak from Treamis World School, Bangalore
Class : Class 8
It's surely D

Ans 2:

Mradul from Modern public school bhiwadi, Bhiwadi
Class : Class 7
HURRAYWOWALASBEWAREBRAVO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

Ans 3:

Mradul from Modern public school bhiwadi, Bhiwadi
Class : Class 7
IT IS C

Ans 4:

Mradul from Modern public school bhiwadi, Bhiwadi
Class : Class 7
BIT GOOD

Ans 5:

krishna tripathi from nahtfg, mjhiuhgh
Class : Class 8
D

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