National Science Olympiad Forum By SOF Olympiad Trainer - Page 463

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8

Ans 2:

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

Ans 3:

Class : Class 8
(D) shall be the answer

Ans 4:

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.

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
Luminouse zone doesnt contain carbon particles. NSO please fix these errors

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8

Ans 2:

Class : Class 10
it should be h2o instead of h2

Ans 3:

Class : Class 8

Ans 4:

Class : Class 5
yes

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 10
Exactly.

Ans 2:

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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Subject :NSO    Class : Class 8

Ans 1:

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).

Ans 2:

Class : Class 8

Ans 3:

Class : Class 9
totally wrong

Ans 4:

Class : Class 8

Ans 5:

Class : Class 8
What is "Apache tomcat error"? I wrote a long answer and it vanished.

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 10
A because co2 does not support burning

Ans 2:

Class : Class 4

Ans 3:

Class : Class 8
But it can also be c

Ans 4:

Class : Class 7
it can also be c because oxygen gas present in the air is necessary for burning

Ans 5:

Class : Class 5
A

Ans 6:

Class : Class 10
A: Carbon dioxide gas does not support burning.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
It is A

Ans 2:

Class : Class 6

Ans 3:

Class : Class 8
B

Ans 4:

Class : Class 7
yeahhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Ans 5:

Class : Class 6
B, anybody marking something else is mad.

Ans 6:

Class : Class 6
Yeah, it is A.

Ans 7:

Class : Class 8
depends on the weather

Ans 8:

Class : Class 4
answer is b

Ans 9:

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

Ans 10:

Class : Class 6
what are you saying it is a

Ans 11:

Class : Class 2
somone

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