National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 2
The answer is D as the pictures given have different hazards.

Ans 2:

Class : Class 7

Ans 3:

Class : Class 4
a is the answer

Ans 4:

Class : Class 3
a is theaa is the answer.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
I think it's option (C) as plastic bags are harmful for environment.

Ans 2:

Class : Class 8
I think it's option (C) as plastic bags are harmful for environment.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
Water absorbed from roots of plants is trasported to leaves of plant. excess water escapes into atmosphere in the process of traspiration which forms clouds and thus help in raining.

Ans 2:

Class : Class 8
because when we plant a tree , it absorb water from the soil and sun absorb water from leaf and in sky it made cloud and rain occur

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 3

Ans 2:

Class : Class 4

Ans 3:

Class : Class 5

Ans 4:

Class : Class 6
haha

Ans 5:

Class : Class 5

Ans 6:

Class : Class 5
The correct answer is A. I wrote it wrong as D

Ans 7:

Class : Class 6
the simplest solution is there there are two magnets so only 1 or 0 gaps should be there... in a: there are two gaps so a is the answer .. on the other hand look at the textures

Ans 8:

Class : Class 8

Ans 9:

Class : Class 4
so difficult

Ans 10:

Class : Class 6
correct answer:D

Ans 11:

Class : Class 5
can anyone tell me

Ans 12:

Class : Class 5

Ans 13:

Class : Class 4
a

Ans 14:

Class : Class 6
HOME Test ReviewForce Work and Energy0 : 5 : 9 / 0 : 40Time Taken20 / 20Marks ObtainedAll Correct Wrong Unattemted1.Your Answer B Correct Answer B View this question on ForumSolutionReport Error Marks: 12.Your Answer D Correct Answer D View this question on ForumReport Error Marks: 13.Your Answer C Correct Answer C View this question on ForumSolutionReport Error Marks: 14.Your Answer D Correct Answer D View this question on ForumSolutionReport Error Marks: 15.Your Answer B Correct Answer B View this question on ForumSolutionReport Error Marks: 16.Your Answer D Correct Answer D View this question on ForumSolutionReport Error Marks: 17.Your Answer C Correct Answer C View this question on ForumSolutionReport Error Marks: 18.Your Answer C Correct Answer C View this question on ForumReport Error Marks: 19.Your Answer B Correct Answer B View this question on ForumSolutionReport Error Marks: 110.Your Answer C Correct Answer C View this question on ForumSolutionReport Error Marks: 111.Your Answer B Correct Answer B View this question on ForumSolutionReport Error Marks: 112.Your Answer A Correct Answer A View this question on ForumSolutionReport Error Marks: 113.Your Answer A Correct Answer A View this question on ForumSolutionReport Error Marks: 114.Your Answer B Correct Answer B View this question on ForumReport Error Marks: 115.Your Answer A Correct Answer A View this question on ForumSolutionReport Error Marks: 116.Your Answer B Correct Answer B View this question on ForumSolutionReport Error Marks: 117.Your Answer D Correct Answer D View this question on ForumSolutionReport Error Marks: 118.Your Answer D Correct Answer D View this question on ForumReport Error Marks: 119.Your Answer A Correct Answer A View this question on ForumReport Error Marks: 120.Your Answer A Correct Answer A View this question on ForumSolutionReport Error Marks: 1

Ans 15:

Class : Class 5

Ans 16:

Class : Class 5
As there are 2 magnets and 2 non magnet rings, only one space can be obtained between the 2 magnets with similar poles repelling each other. Option A shows two spaces between rings. This configuration is not possible.

Ans 17:

Class : Class 4

Ans 18:

Class : Class 5

Ans 19:

Class : Class 5
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Ans 20:

Class : Class 6

Ans 21:

Class : Class 6

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
The answer should be C because during the last 10 seconds [ 40 second ] the distance is 10 meter not 5 meter.

Ans 2:

Class : Class 7
A

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
WHAT!!!!!! IT SHOULD BE (A).

Ans 2:

Class : Class 4
what????

Ans 3:

Class : Class 8

Ans 4:

Class : Class 3
It should be a tailorbird

Ans 5:

Class : Class 5
Tailor bird that is A

Ans 6:

Class : Class 8
They are right it should be [B] .

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 10
TBH2VI http://www.LnAJ7K8QSpfMO2wQ8gO.com

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Subject :NSO    Class : Class 9

Ans 1: (Master Answer)

Class : Class 1
Alpha, Beta, Gamma in ascending order.

Alpha particles leaves the nucleus of an unstable atom at a speed of 16,000 kilometres per second, around a tenth the speed of light.
Beta particles travel at a speed of 270,000 kilometres per second, around 98% of speed of light.
Gamma particles travel at the speed of light.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
Can somebody pls answer this question with explanation

Ans 2:

Class : Class 6
Please please please please please please please please change the question

Ans 3:

Class : Class 6

Ans 4:

Class : Class 5
ALL OPTIONS ARE WRONG

Ans 5:

Class : Class 4
all Q are wrong

Ans 6:

Class : Class 3
I agree with Harry , 1 B AND C ARE NOT THE SAME. 2 When liquid is cooled down it forms solid, SO THE ONLY ANSWER IS CCCC

Ans 7:

Class : Class 7
please change the question.

Ans 8:

Class : Class 7
you are right vaibhav all are wrong

Ans 9:

Class : Class 8
The question , answer and the solution are all correct … Vrishank don't say that the SOF is mad ( I think you are mad ) you are a FOOL

Ans 10:

Class : Class 6
None of the options are correct according to my doubt.

Ans 11:

Class : Class 4
ansAll answers oposite

Ans 12:

Class : Class 7
I also think that.Questions ,options, colums and answers didn't mentioned.

Ans 13:

Class : Class 5
I have by mistake typed it Co sorry it will be C. I have a solution we can report error.

Ans 14:

Class : Class 5
wrong options

Ans 15:

Class : Class 4
all options are wrong

Ans 16:

Class : Class 6
I think all options are wrong

Ans 17:

Class : Class 4
all are wrong

Ans 18:

Class : Class 4
Please explain the answer. I also support Baibhab that the choices given are wrong.

Ans 19:

Class : Class 6
question, answer and solution is wrongall the options are showing the difference on heating

Ans 20:

Class : Class 6
option d maybe

Ans 21:

Class : Class 7
I think al options are wrong . Please tell the correct answer

Ans 22:

Class : Class 5

Ans 23:

Class : Class 5
all options are wrong

Ans 24:

Class : Class 4
Please change it. It is correct in NSO book like Harish Divakar said

Ans 25:

Class : Class 6
PLS. CORRECT

Ans 26:

Class : Class 2
SOF IS MAD

Ans 27:

Class : Class 6
the options are wrong

Ans 28:

Class : Class 5
HARRY CAN YOU PLEASE EXPLAIN ME

Ans 29:

Class : Class 5
THE ANSWER IS WRONG.

Ans 30:

Class : Class 6

Ans 31:

Class : Class 5
it is wrong

Ans 32:

Class : Class 6

Ans 33:

Class : Class 4
all options are wrong

Ans 34:

Class : Class 4

Ans 35:

Class : Class 8
The correct answer is C

Ans 36:

Class : Class 6
Options are wrong. Molecular distance should be less.

Ans 37:

Class : Class 4
how can liquid turn into gas by freezing ? Option A does the same thing so the correct option should be D

Ans 38:

Class : Class 4
All options are WRONG

Ans 39:

Class : Class 6
All the options are totally wrong, please change them

Ans 40:

Class : Class 4
Are B, C, D correct.

Ans 41:

Class : Class 4
Qtn. agreed but main point is which is column X and which is column is Y??????

Ans 42:

Class : Class 5
Options are wrong. Molecular distance should be less. first fix which column is X and Y.

Ans 43:

Class : Class 4
is there a correction in the options given?if not please clarify with explanation

Ans 44:

Class : Class 7
When a substance is cooled the molecules come closer. But there is no picture showing that the molecules are coming closer there is no correct answer. Also option B and C are the same. Can you please change it?

Ans 45:

Class : Class 4
All are wrong. At least number of atoms should be same. So answer should be D

Ans 46:

Class : Class 4
All options are wrong.

Ans 47:

Class : Class 6
4wrong question

Ans 48:

Class : Class 6
There is no specific details about which one is X or Y.So by common sense I think that it would be D.But B

Ans 49:

Class : Class 5
SHOULD HAVE BEEN SPECIFIC WITH RESPECT TO X AND Y MARKING

Ans 50:

Class : Class 4
Option b, c are the same. Pls give me a proper explanation as to why one option is correct

Ans 51:

Class : Class 5
b and c are all the same

Ans 52:

Class : Class 6
All the answer is wrong. In the NSO book, it is right.

Ans 53:

Class : Class 5
The question is wrong... and so the answer is also misleading.

Ans 54: